TY  - JOUR
AU  - Stojanović, Bojan
AU  - Djordjević, Nenad
AU  - Simić, Aleksandar
AU  - Božičković, Aleksa
AU  - Davidović, Vesna
AU  - Ivetić, Aleksandra
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5279
AB  - This study examined the in vitro crude protein (CP) degradability of wilted, dried for hay and ensiled Medicago sativa, Trifolium pratense and Sorghum sudanense, as well as of ensiled legume-sudan grass mixtures. The rumen degradable protein (RDP) was estimated using the latest Cornell net carbohydrate and protein system (CNCPS v6.5) and with the Streptomyces griseus protease assay (48 h of incubation). Sudan grass forages were the lowest in moderately degradable CP and the highest in CP fraction C, while red clover showed the least values for the soluble true protein like alfalfa forages for slowly degradable protein bound in neutral detergent fibre (NDF). Ensiling of legume-sudan grass mixtures decreases N-NH3 content by 12.2 and 5.1% in comparison with alfalfa and red clover silages, respectively. The RDP values for sudan grass (fresh, wilted, hay) were lower by 7.2 to 7.9% or 10.4 to 15.7% (CNCPS or S. griseus procedure) and up to 0.8 or 5.3 to 9.7% in comparison with alfalfa and red clover, respectively. The reduction of protein degradability in ensiled legume-sudan grass mixtures was 5.5 or 6.1% and 1.5 or 3% compared to alfalfa and red clover silages, respectively. Due to higher rumen undegradable protein content, the sudan grass and legume-sudan grass mixtures may be efficiently used to improve the protein utilization in ruminant nutrition.
PB  - Ankara Univ Press, Ankara
T2  - Ankara Universitesi Veteriner Fakultesi Dergisi
T1  - The in vitro protein degradability of legume and sudan grass forage types and ensiled mixtures
EP  - 425
IS  - 4
SP  - 419
VL  - 67
DO  - 10.33988/auvfd.702257
ER  - 

@article{
author = "Stojanović, Bojan and Djordjević, Nenad and Simić, Aleksandar and Božičković, Aleksa and Davidović, Vesna and Ivetić, Aleksandra",
year = "2020",
abstract = "This study examined the in vitro crude protein (CP) degradability of wilted, dried for hay and ensiled Medicago sativa, Trifolium pratense and Sorghum sudanense, as well as of ensiled legume-sudan grass mixtures. The rumen degradable protein (RDP) was estimated using the latest Cornell net carbohydrate and protein system (CNCPS v6.5) and with the Streptomyces griseus protease assay (48 h of incubation). Sudan grass forages were the lowest in moderately degradable CP and the highest in CP fraction C, while red clover showed the least values for the soluble true protein like alfalfa forages for slowly degradable protein bound in neutral detergent fibre (NDF). Ensiling of legume-sudan grass mixtures decreases N-NH3 content by 12.2 and 5.1% in comparison with alfalfa and red clover silages, respectively. The RDP values for sudan grass (fresh, wilted, hay) were lower by 7.2 to 7.9% or 10.4 to 15.7% (CNCPS or S. griseus procedure) and up to 0.8 or 5.3 to 9.7% in comparison with alfalfa and red clover, respectively. The reduction of protein degradability in ensiled legume-sudan grass mixtures was 5.5 or 6.1% and 1.5 or 3% compared to alfalfa and red clover silages, respectively. Due to higher rumen undegradable protein content, the sudan grass and legume-sudan grass mixtures may be efficiently used to improve the protein utilization in ruminant nutrition.",
publisher = "Ankara Univ Press, Ankara",
journal = "Ankara Universitesi Veteriner Fakultesi Dergisi",
title = "The in vitro protein degradability of legume and sudan grass forage types and ensiled mixtures",
pages = "425-419",
number = "4",
volume = "67",
doi = "10.33988/auvfd.702257"
}

Stojanović, B., Djordjević, N., Simić, A., Božičković, A., Davidović, V.,& Ivetić, A.. (2020). The in vitro protein degradability of legume and sudan grass forage types and ensiled mixtures. in Ankara Universitesi Veteriner Fakultesi Dergisi
Ankara Univ Press, Ankara., 67(4), 419-425.
https://doi.org/10.33988/auvfd.702257

Stojanović B, Djordjević N, Simić A, Božičković A, Davidović V, Ivetić A. The in vitro protein degradability of legume and sudan grass forage types and ensiled mixtures. in Ankara Universitesi Veteriner Fakultesi Dergisi. 2020;67(4):419-425.
doi:10.33988/auvfd.702257 .

Stojanović, Bojan, Djordjević, Nenad, Simić, Aleksandar, Božičković, Aleksa, Davidović, Vesna, Ivetić, Aleksandra, "The in vitro protein degradability of legume and sudan grass forage types and ensiled mixtures" in Ankara Universitesi Veteriner Fakultesi Dergisi, 67, no. 4 (2020):419-425,
https://doi.org/10.33988/auvfd.702257 . .

TY  - JOUR
AU  - Dubljević, Radislav
AU  - Djordjević, Nenad
AU  - Radonjić, D.
AU  - Djokić, M.
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5442
AB  - The paper presents the chemical composition, nutritional and usable value of sunchoke (Helianthus tuberosus L.) and the possibility of using it for animal nutrition in fresh and canned form. Tests show that sunchoke cut in mid-June contains about 9.43% of crude protein, 2.49% of crude fat, 19.93% of crude cellulose, 50.50% of NFE (nitrogen-free extractives) and 17.65% of ash in the dry matter. Although lucerne biomass had a more favorable chemical composition (18.13% crude protein, 6.72% crude fat, 25.24% crude cellulose, 39.35% BEM and 10.56% ash), the benefits of sunchoke are in the more successful growing in less favorable natural, primarily soil conditions, the more suitable it is for ensiling and the longer it stays on one planted plot. Since it is predominantly an energy (carbohydrate) nutrient, the possibility of ensiling the green biomass of sunchoke in a mixture with 25, 50 and 75% fresh lucerne (25% dry matter) was investigated. The obtained results show that with the increase of lucerne participation, the nutritional value of silage increases, but the quality decreases. In addition to its role in conventional feed production, sunchoke can be an important plant in the system of organic production, production for industrial processing and for extensive cultivation in hunting grounds.
PB  - University of Montenegro
T2  - Agriculture and Forestry
T1  - Quality of silage of mixed sunchoke and lucerne forage
EP  - 156
IS  - 2
SP  - 151
VL  - 66
DO  - 10.17707/AgricultForest.66.2.14
ER  - 

@article{
author = "Dubljević, Radislav and Djordjević, Nenad and Radonjić, D. and Djokić, M.",
year = "2020",
abstract = "The paper presents the chemical composition, nutritional and usable value of sunchoke (Helianthus tuberosus L.) and the possibility of using it for animal nutrition in fresh and canned form. Tests show that sunchoke cut in mid-June contains about 9.43% of crude protein, 2.49% of crude fat, 19.93% of crude cellulose, 50.50% of NFE (nitrogen-free extractives) and 17.65% of ash in the dry matter. Although lucerne biomass had a more favorable chemical composition (18.13% crude protein, 6.72% crude fat, 25.24% crude cellulose, 39.35% BEM and 10.56% ash), the benefits of sunchoke are in the more successful growing in less favorable natural, primarily soil conditions, the more suitable it is for ensiling and the longer it stays on one planted plot. Since it is predominantly an energy (carbohydrate) nutrient, the possibility of ensiling the green biomass of sunchoke in a mixture with 25, 50 and 75% fresh lucerne (25% dry matter) was investigated. The obtained results show that with the increase of lucerne participation, the nutritional value of silage increases, but the quality decreases. In addition to its role in conventional feed production, sunchoke can be an important plant in the system of organic production, production for industrial processing and for extensive cultivation in hunting grounds.",
publisher = "University of Montenegro",
journal = "Agriculture and Forestry",
title = "Quality of silage of mixed sunchoke and lucerne forage",
pages = "156-151",
number = "2",
volume = "66",
doi = "10.17707/AgricultForest.66.2.14"
}

Dubljević, R., Djordjević, N., Radonjić, D.,& Djokić, M.. (2020). Quality of silage of mixed sunchoke and lucerne forage. in Agriculture and Forestry
University of Montenegro., 66(2), 151-156.
https://doi.org/10.17707/AgricultForest.66.2.14

Dubljević R, Djordjević N, Radonjić D, Djokić M. Quality of silage of mixed sunchoke and lucerne forage. in Agriculture and Forestry. 2020;66(2):151-156.
doi:10.17707/AgricultForest.66.2.14 .

Dubljević, Radislav, Djordjević, Nenad, Radonjić, D., Djokić, M., "Quality of silage of mixed sunchoke and lucerne forage" in Agriculture and Forestry, 66, no. 2 (2020):151-156,
https://doi.org/10.17707/AgricultForest.66.2.14 . .

TY  - JOUR
AU  - Radonjić, Dušica
AU  - Djordjević, Nenad
AU  - Marković, Bozidarka
AU  - Marković, Milan
AU  - Stesević, Danijela
AU  - Dajić-Stevanović, Zora
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5060
AB  - The fatty acid content is a very important feature of the milk that affects the health of consumers. The aim of this study was to estimate cow's milk fatty acid composition in early vegetative, late vegetative and reproductive phase, with the simultaneous determination of the pasture biomass chemical and botanical composition. The research was conducted on Agrostis castellana semi-natural dry grassland in the vicinity of Podgorica, Montenegro. Cows were put to grazing during the whole experimental period. This pasture was assessed as moderate to good quality and botanically diversified. The chemical composition of the grassland biomass changed with the maturity phase. A significant increase in the content of DM, crude fiber, fat and a decrease in crude protein content were determined throughout three phenological phases (p  lt  0.05). The content of total milk fat did not show significant variability during first two phases, but it did in the third phase. The content of milk fat and protein was high in all phases, although it is a dry pasture with a poor quality of biomass in the third phase. The content of majority saturated fatty acids (SFAs) increased with grass maturity, while total content of monounsaturated fatty acids (MUFAs) decreased. The polyunsaturated fatty acids (PUFAs) content kept the same level up to the reproductive phase. The phenological phase significantly influenced the content of fatty acids in the third phase (p  lt  0.05). A notable number of SFAs, MUFAs end PUFAs had the highest content in the second phase.
PB  - Inst Investigaciones Agropecuarias, Chillan
T2  - Chilean Journal of Agricultural Research
T1  - Effect of phenological phase of dry grazing pasture on fatty acid composition of cows' milk
EP  - 287
IS  - 2
SP  - 278
VL  - 79
DO  - 10.4067/S0718-58392019000200278
ER  - 

@article{
author = "Radonjić, Dušica and Djordjević, Nenad and Marković, Bozidarka and Marković, Milan and Stesević, Danijela and Dajić-Stevanović, Zora",
year = "2019",
abstract = "The fatty acid content is a very important feature of the milk that affects the health of consumers. The aim of this study was to estimate cow's milk fatty acid composition in early vegetative, late vegetative and reproductive phase, with the simultaneous determination of the pasture biomass chemical and botanical composition. The research was conducted on Agrostis castellana semi-natural dry grassland in the vicinity of Podgorica, Montenegro. Cows were put to grazing during the whole experimental period. This pasture was assessed as moderate to good quality and botanically diversified. The chemical composition of the grassland biomass changed with the maturity phase. A significant increase in the content of DM, crude fiber, fat and a decrease in crude protein content were determined throughout three phenological phases (p  lt  0.05). The content of total milk fat did not show significant variability during first two phases, but it did in the third phase. The content of milk fat and protein was high in all phases, although it is a dry pasture with a poor quality of biomass in the third phase. The content of majority saturated fatty acids (SFAs) increased with grass maturity, while total content of monounsaturated fatty acids (MUFAs) decreased. The polyunsaturated fatty acids (PUFAs) content kept the same level up to the reproductive phase. The phenological phase significantly influenced the content of fatty acids in the third phase (p  lt  0.05). A notable number of SFAs, MUFAs end PUFAs had the highest content in the second phase.",
publisher = "Inst Investigaciones Agropecuarias, Chillan",
journal = "Chilean Journal of Agricultural Research",
title = "Effect of phenological phase of dry grazing pasture on fatty acid composition of cows' milk",
pages = "287-278",
number = "2",
volume = "79",
doi = "10.4067/S0718-58392019000200278"
}

Radonjić, D., Djordjević, N., Marković, B., Marković, M., Stesević, D.,& Dajić-Stevanović, Z.. (2019). Effect of phenological phase of dry grazing pasture on fatty acid composition of cows' milk. in Chilean Journal of Agricultural Research
Inst Investigaciones Agropecuarias, Chillan., 79(2), 278-287.
https://doi.org/10.4067/S0718-58392019000200278

Radonjić D, Djordjević N, Marković B, Marković M, Stesević D, Dajić-Stevanović Z. Effect of phenological phase of dry grazing pasture on fatty acid composition of cows' milk. in Chilean Journal of Agricultural Research. 2019;79(2):278-287.
doi:10.4067/S0718-58392019000200278 .

Radonjić, Dušica, Djordjević, Nenad, Marković, Bozidarka, Marković, Milan, Stesević, Danijela, Dajić-Stevanović, Zora, "Effect of phenological phase of dry grazing pasture on fatty acid composition of cows' milk" in Chilean Journal of Agricultural Research, 79, no. 2 (2019):278-287,
https://doi.org/10.4067/S0718-58392019000200278 . .

TY  - JOUR
AU  - Stojanović, Bojan
AU  - Simić, Aleksandar
AU  - Grubić, Goran
AU  - Djordjević, Nenad
AU  - Božičković, Aleksa
AU  - Davidović, Vesna
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5209
AB  - A cutting experiment was conducted to analyze the changes in the crude protein (CP) fraction content and in the estimated ruminal protein degradability of forage, obtained in conditions of simulated rotational spring grazing on permanent grassland. The field trial was conducted on permanent pasture during 2015 and included three cuttings as a simulated rotational spring grazing. For determination of protein degradability of pasture forage, the fractionation of the CP according to Cornell Net Carbohydrate and Protein System (CNCPS v6.5) and the Streptomyces griseus protease assay were used. Relative to CP, no significant differences were found among cuts for ammonia N content (A1 fraction) and for protein fraction C which is completely unavailable to the animals. Values for soluble true protein (A2 fraction) and cell wall-associated protein, which is acid detergent soluble (B2), were significantly increased (p lt 0.05) while a significant reduction (p lt 0.05) of the moderately degradable protein (B1) content was determined during the growing season. The lower rumen degradable protein (RDP) content of grassland herbage was obtained in the second cut which was significant (p lt 0.05) according to the CNCPS procedure. Obtained high solubility and degradability of CP in pasture require adequate content of readily available carbohydrates in rations for grazing ruminants to provide efficient utilization of consumed protein.
AB  - Istraživanje je obavljeno u cilju utvrđivanja promena u sadržaju frakcija sirovog proteina (SP) i ruminalne razgradivosti proteina zelene mase dobijene košenjem prirodnog travnjaka u uslovima koji su odgovarali rotacijskoj pregonskoj ispaši tokom prolećne sezone. Poljski ogled je izveden na permanentnom pašnjaku tokom proleća 2015. godine i uključivao je tri otkosa koji su odgovarali ciklusima ispaše. Za determinisanje razgradivosti proteina zelene mase, frakcionisanje sirovog proteina je obavljeno prema proceduri Cornell Net Carbohydrate and Protein System (CNCPS v6.5), kao i primenom in vitro metode korišćenjem Streptomyces griseus proteaze. U odnosu na SP, nisu utvrđene značajne razlike između otkosa - ciklusa ispaše u pogledu sadržaja amonijačnog N (frakcija A1), kao i u pogledu sadržaja proteinske frakcije C, koja je potpuno nedostupna životinjama. Sadržaj rastvorljivog pravog proteina (frakcija A2) i proteina vezanog za ćelijski zid, koji je rastvorljiv u kiselom deterdžentu (frakcija B2) se značajno povećavao (p lt 0,05), dok se sadržaj umereno razgradive frakcije proteina (B1) značajno smanjivao (p lt 0,05) tokom prolećne sezone vegetacije. Najmanja vrednost za ruminalnu razgradivost i učešće RDP (protein razgradiv u rumenu) u SP zelene mase sa pašnjaka utvrđena je u drugom otkosu, a ova razlika je bila značajna (p lt 0,05) kada je ruminalna razgradivost proteina determinisana korišćenjem procedure CNCPS. Utvrđeno visoko učešće rastvorljive frakcije SP i visoka ruminalna razgradivost SP zelene mase sa pašnjaka ukazuju na potrebu podrobnijeg balansiranja obroka za preživare na paši u pogledu sadržaja lako razgradivih ugljenih hidrata, a u cilju obezbeđenja efikasnog iskorišćavanja konzumiranog proteina.
PB  - Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd
T2  - Journal of Agricultural Sciences (Belgrade)
T1  - Protein degradability of grassland forage under simulated rotational spring grazing
T1  - Razgradivost proteina zelene mase sa travnjaka u uslovima prolećne pregonske ispaše
EP  - 263
IS  - 3
SP  - 255
VL  - 64
DO  - 10.2298/JAS1903255S
ER  - 

@article{
author = "Stojanović, Bojan and Simić, Aleksandar and Grubić, Goran and Djordjević, Nenad and Božičković, Aleksa and Davidović, Vesna",
year = "2019",
abstract = "A cutting experiment was conducted to analyze the changes in the crude protein (CP) fraction content and in the estimated ruminal protein degradability of forage, obtained in conditions of simulated rotational spring grazing on permanent grassland. The field trial was conducted on permanent pasture during 2015 and included three cuttings as a simulated rotational spring grazing. For determination of protein degradability of pasture forage, the fractionation of the CP according to Cornell Net Carbohydrate and Protein System (CNCPS v6.5) and the Streptomyces griseus protease assay were used. Relative to CP, no significant differences were found among cuts for ammonia N content (A1 fraction) and for protein fraction C which is completely unavailable to the animals. Values for soluble true protein (A2 fraction) and cell wall-associated protein, which is acid detergent soluble (B2), were significantly increased (p lt 0.05) while a significant reduction (p lt 0.05) of the moderately degradable protein (B1) content was determined during the growing season. The lower rumen degradable protein (RDP) content of grassland herbage was obtained in the second cut which was significant (p lt 0.05) according to the CNCPS procedure. Obtained high solubility and degradability of CP in pasture require adequate content of readily available carbohydrates in rations for grazing ruminants to provide efficient utilization of consumed protein., Istraživanje je obavljeno u cilju utvrđivanja promena u sadržaju frakcija sirovog proteina (SP) i ruminalne razgradivosti proteina zelene mase dobijene košenjem prirodnog travnjaka u uslovima koji su odgovarali rotacijskoj pregonskoj ispaši tokom prolećne sezone. Poljski ogled je izveden na permanentnom pašnjaku tokom proleća 2015. godine i uključivao je tri otkosa koji su odgovarali ciklusima ispaše. Za determinisanje razgradivosti proteina zelene mase, frakcionisanje sirovog proteina je obavljeno prema proceduri Cornell Net Carbohydrate and Protein System (CNCPS v6.5), kao i primenom in vitro metode korišćenjem Streptomyces griseus proteaze. U odnosu na SP, nisu utvrđene značajne razlike između otkosa - ciklusa ispaše u pogledu sadržaja amonijačnog N (frakcija A1), kao i u pogledu sadržaja proteinske frakcije C, koja je potpuno nedostupna životinjama. Sadržaj rastvorljivog pravog proteina (frakcija A2) i proteina vezanog za ćelijski zid, koji je rastvorljiv u kiselom deterdžentu (frakcija B2) se značajno povećavao (p lt 0,05), dok se sadržaj umereno razgradive frakcije proteina (B1) značajno smanjivao (p lt 0,05) tokom prolećne sezone vegetacije. Najmanja vrednost za ruminalnu razgradivost i učešće RDP (protein razgradiv u rumenu) u SP zelene mase sa pašnjaka utvrđena je u drugom otkosu, a ova razlika je bila značajna (p lt 0,05) kada je ruminalna razgradivost proteina determinisana korišćenjem procedure CNCPS. Utvrđeno visoko učešće rastvorljive frakcije SP i visoka ruminalna razgradivost SP zelene mase sa pašnjaka ukazuju na potrebu podrobnijeg balansiranja obroka za preživare na paši u pogledu sadržaja lako razgradivih ugljenih hidrata, a u cilju obezbeđenja efikasnog iskorišćavanja konzumiranog proteina.",
publisher = "Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd",
journal = "Journal of Agricultural Sciences (Belgrade)",
title = "Protein degradability of grassland forage under simulated rotational spring grazing, Razgradivost proteina zelene mase sa travnjaka u uslovima prolećne pregonske ispaše",
pages = "263-255",
number = "3",
volume = "64",
doi = "10.2298/JAS1903255S"
}

Stojanović, B., Simić, A., Grubić, G., Djordjević, N., Božičković, A.,& Davidović, V.. (2019). Protein degradability of grassland forage under simulated rotational spring grazing. in Journal of Agricultural Sciences (Belgrade)
Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd., 64(3), 255-263.
https://doi.org/10.2298/JAS1903255S

Stojanović B, Simić A, Grubić G, Djordjević N, Božičković A, Davidović V. Protein degradability of grassland forage under simulated rotational spring grazing. in Journal of Agricultural Sciences (Belgrade). 2019;64(3):255-263.
doi:10.2298/JAS1903255S .

Stojanović, Bojan, Simić, Aleksandar, Grubić, Goran, Djordjević, Nenad, Božičković, Aleksa, Davidović, Vesna, "Protein degradability of grassland forage under simulated rotational spring grazing" in Journal of Agricultural Sciences (Belgrade), 64, no. 3 (2019):255-263,
https://doi.org/10.2298/JAS1903255S . .

TY  - JOUR
AU  - Blagojević, Milomir
AU  - Djordjević, Nenad
AU  - Dinić, Bora
AU  - Vasić, Tanja
AU  - Milenković, Jasmina
AU  - Petrović, Mirjana
AU  - Marković, Jordan
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4423
AB  - This research was conducted to determine the effect of seed rates in mixtures of pea + oat on the green forage and silage protein fractions evaluated by Cornell net carbohydrate and protein system (CNCPS). Experiment was established in autumn of 2012, on October the 20th and plant samples were taken in spring 2013 at forming the first pods on 2/3 plants of pea at Institute for forage crops, Krusevac, Republic of Serbia, using five different mixture rates of pea and oat crops (100% pea + 0% oat; 0% pea + 100% oat; 25% pea + 75% oat; 50% pea + 50% oat and 75% pea + 25% oat). After harvesting pea: oat mixtures were treated with bacterial inoculant and ensiled in anaerobic jars for 45 days. Green forages and silage samples were analyzed for DM (dry matter), CP (crude protein), primary protein fractions-TP (true protein), NPN (non protein nitrogen), IP (insoluble protein), SolP (soluble protein), NDICP (neutral detergent insoluble crude protein) and ADICP (acid detergent insoluble crude protein) and protein fractions by CNCPS. An analysis of variance found statistically significant differences among mixture rates for all variables, except IP and SolP. Silage from monoculture pea had the highest NPN (696.2 g kg(-1) CP) and SolP (713.8 g kg(-1) CP), followed by the mixture of pea with oat 75:25 (662.5 and 653.4 g kg(-1) CP, respectively). Analyzing the CNCPS protein fractions of pea: oat silages it was found that silage from pea monoculture contained the highest PA fraction (non protein nitrogen, immediately degraded in the rumen) and that PA fraction increased with increasing pea ratios in silages, which was a direct reflection of their high NPN and SolP in green forages and in silages. Because of those facts 25:50 and 50:50 pea: oat mixtures silages could be recommended for ruminant feeding. The investigated bacterial inoculant can increase the TP content, as well as PB 1 (true protein rapidly degraded in the rumen) and PB 3 (slowly degraded True Protein in the rumen, because it is associated with the cell wall) fractions.
PB  - Ankara Univ, Fac Agr, Diskapi
T2  - Journal of Agricultural Sciences-Tarim Bilimleri Dergisi
T1  - Determination of Green Forage and Silage Protein Degradability of Some Pea (Pisum sativum L.) plus Oat (Avena sativa L.) Mixtures Grown in Serbia
EP  - 422
IS  - 4
SP  - 415
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_4423
ER  - 

@article{
author = "Blagojević, Milomir and Djordjević, Nenad and Dinić, Bora and Vasić, Tanja and Milenković, Jasmina and Petrović, Mirjana and Marković, Jordan",
year = "2017",
abstract = "This research was conducted to determine the effect of seed rates in mixtures of pea + oat on the green forage and silage protein fractions evaluated by Cornell net carbohydrate and protein system (CNCPS). Experiment was established in autumn of 2012, on October the 20th and plant samples were taken in spring 2013 at forming the first pods on 2/3 plants of pea at Institute for forage crops, Krusevac, Republic of Serbia, using five different mixture rates of pea and oat crops (100% pea + 0% oat; 0% pea + 100% oat; 25% pea + 75% oat; 50% pea + 50% oat and 75% pea + 25% oat). After harvesting pea: oat mixtures were treated with bacterial inoculant and ensiled in anaerobic jars for 45 days. Green forages and silage samples were analyzed for DM (dry matter), CP (crude protein), primary protein fractions-TP (true protein), NPN (non protein nitrogen), IP (insoluble protein), SolP (soluble protein), NDICP (neutral detergent insoluble crude protein) and ADICP (acid detergent insoluble crude protein) and protein fractions by CNCPS. An analysis of variance found statistically significant differences among mixture rates for all variables, except IP and SolP. Silage from monoculture pea had the highest NPN (696.2 g kg(-1) CP) and SolP (713.8 g kg(-1) CP), followed by the mixture of pea with oat 75:25 (662.5 and 653.4 g kg(-1) CP, respectively). Analyzing the CNCPS protein fractions of pea: oat silages it was found that silage from pea monoculture contained the highest PA fraction (non protein nitrogen, immediately degraded in the rumen) and that PA fraction increased with increasing pea ratios in silages, which was a direct reflection of their high NPN and SolP in green forages and in silages. Because of those facts 25:50 and 50:50 pea: oat mixtures silages could be recommended for ruminant feeding. The investigated bacterial inoculant can increase the TP content, as well as PB 1 (true protein rapidly degraded in the rumen) and PB 3 (slowly degraded True Protein in the rumen, because it is associated with the cell wall) fractions.",
publisher = "Ankara Univ, Fac Agr, Diskapi",
journal = "Journal of Agricultural Sciences-Tarim Bilimleri Dergisi",
title = "Determination of Green Forage and Silage Protein Degradability of Some Pea (Pisum sativum L.) plus Oat (Avena sativa L.) Mixtures Grown in Serbia",
pages = "422-415",
number = "4",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_4423"
}

Blagojević, M., Djordjević, N., Dinić, B., Vasić, T., Milenković, J., Petrović, M.,& Marković, J.. (2017). Determination of Green Forage and Silage Protein Degradability of Some Pea (Pisum sativum L.) plus Oat (Avena sativa L.) Mixtures Grown in Serbia. in Journal of Agricultural Sciences-Tarim Bilimleri Dergisi
Ankara Univ, Fac Agr, Diskapi., 23(4), 415-422.
https://hdl.handle.net/21.15107/rcub_agrospace_4423

Blagojević M, Djordjević N, Dinić B, Vasić T, Milenković J, Petrović M, Marković J. Determination of Green Forage and Silage Protein Degradability of Some Pea (Pisum sativum L.) plus Oat (Avena sativa L.) Mixtures Grown in Serbia. in Journal of Agricultural Sciences-Tarim Bilimleri Dergisi. 2017;23(4):415-422.
https://hdl.handle.net/21.15107/rcub_agrospace_4423 .

Blagojević, Milomir, Djordjević, Nenad, Dinić, Bora, Vasić, Tanja, Milenković, Jasmina, Petrović, Mirjana, Marković, Jordan, "Determination of Green Forage and Silage Protein Degradability of Some Pea (Pisum sativum L.) plus Oat (Avena sativa L.) Mixtures Grown in Serbia" in Journal of Agricultural Sciences-Tarim Bilimleri Dergisi, 23, no. 4 (2017):415-422,
https://hdl.handle.net/21.15107/rcub_agrospace_4423 .

TY  - JOUR
AU  - Blagojević, M.
AU  - Djordjević, Nenad
AU  - Dinić, Bora
AU  - Vasić, T.
AU  - Milenković, Jasmina
AU  - Petrović, M.
AU  - Marković, J.
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4514
AB  - This research was conducted to determine the effect of seed rates in mixtures of pea + oat on the green forage and silage protein fractions evaluated by Cornell net carbohydrate and protein system (CNCPS). Experiment was established in autumn of 2012, on October the 20th and plant samples were taken in spring 2013 at forming the first pods on 2/3 plants of pea at Institute for forage crops, Kruševac, Republic of Serbia, using five different mixture rates of pea and oat crops (100% pea + 0% oat; 0% pea + 100% oat; 25% pea + 75% oat; 50% pea + 50% oat and 75% pea + 25% oat). After harvesting pea:oat mixtures were treated with bacterial inoculant and ensiled in anaerobic jars for 45 days. Green forages and silage samples were analyzed for DM (dry matter), CP (crude protein), primary protein fractions-TP (true protein), NPN (non protein nitrogen), IP (insoluble protein), SolP (soluble protein), NDICP (neutral detergent insoluble crude protein) and ADICP (acid detergent insoluble crude protein) and protein fractions by CNCPS. An analysis of variance found statistically significant differences among mixture rates for all variables, except IP and SolP. Silage from monoculture pea had the highest NPN (696.2 g kg-1 CP) and SolP (713.8 g kg-1 CP), followed by the mixture of pea with oat 75:25 (662.5 and 653.4 g kg-1 CP, respectively). Analyzing the CNCPS protein fractions of pea:oat silages it was found that silage from pea monoculture contained the highest PA fraction (non protein nitrogen, immediately degraded in the rumen) and that PA fraction increased with increasing pea ratios in silages, which was a direct reflection of their high NPN and SolP in green forages and in silages. Because of those facts 25:50 and 50:50 pea:oat mixtures silages could be recommended for ruminant feeding. The investigated bacterial inoculant can increase the TP content, as well as PB1 (true protein rapidly degraded in the rumen) and PB3 (slowly degraded True Protein in the rumen, because it is associated with the cell wall) fractions.
PB  - Ankara University
T2  - Tarim Bilimleri Dergisi
T1  - Determination of green forage and silage protein degradability of some pea (Pisum sativum L.) + oat (Avena sativa L.) mixtures grown in Serbia
T1  - Sırbistan Koşullarında yetiştirilen kimi bezelye (Pisum sativum L.) + yulaf (Avena sativa L.) yeşil ot ve silaj
EP  - 414
IS  - 4
SP  - 404
VL  - 23
DO  - 10.15832/ankutbd.385865
ER  - 

@article{
author = "Blagojević, M. and Djordjević, Nenad and Dinić, Bora and Vasić, T. and Milenković, Jasmina and Petrović, M. and Marković, J.",
year = "2017",
abstract = "This research was conducted to determine the effect of seed rates in mixtures of pea + oat on the green forage and silage protein fractions evaluated by Cornell net carbohydrate and protein system (CNCPS). Experiment was established in autumn of 2012, on October the 20th and plant samples were taken in spring 2013 at forming the first pods on 2/3 plants of pea at Institute for forage crops, Kruševac, Republic of Serbia, using five different mixture rates of pea and oat crops (100% pea + 0% oat; 0% pea + 100% oat; 25% pea + 75% oat; 50% pea + 50% oat and 75% pea + 25% oat). After harvesting pea:oat mixtures were treated with bacterial inoculant and ensiled in anaerobic jars for 45 days. Green forages and silage samples were analyzed for DM (dry matter), CP (crude protein), primary protein fractions-TP (true protein), NPN (non protein nitrogen), IP (insoluble protein), SolP (soluble protein), NDICP (neutral detergent insoluble crude protein) and ADICP (acid detergent insoluble crude protein) and protein fractions by CNCPS. An analysis of variance found statistically significant differences among mixture rates for all variables, except IP and SolP. Silage from monoculture pea had the highest NPN (696.2 g kg-1 CP) and SolP (713.8 g kg-1 CP), followed by the mixture of pea with oat 75:25 (662.5 and 653.4 g kg-1 CP, respectively). Analyzing the CNCPS protein fractions of pea:oat silages it was found that silage from pea monoculture contained the highest PA fraction (non protein nitrogen, immediately degraded in the rumen) and that PA fraction increased with increasing pea ratios in silages, which was a direct reflection of their high NPN and SolP in green forages and in silages. Because of those facts 25:50 and 50:50 pea:oat mixtures silages could be recommended for ruminant feeding. The investigated bacterial inoculant can increase the TP content, as well as PB1 (true protein rapidly degraded in the rumen) and PB3 (slowly degraded True Protein in the rumen, because it is associated with the cell wall) fractions.",
publisher = "Ankara University",
journal = "Tarim Bilimleri Dergisi",
title = "Determination of green forage and silage protein degradability of some pea (Pisum sativum L.) + oat (Avena sativa L.) mixtures grown in Serbia, Sırbistan Koşullarında yetiştirilen kimi bezelye (Pisum sativum L.) + yulaf (Avena sativa L.) yeşil ot ve silaj",
pages = "414-404",
number = "4",
volume = "23",
doi = "10.15832/ankutbd.385865"
}

Blagojević, M., Djordjević, N., Dinić, B., Vasić, T., Milenković, J., Petrović, M.,& Marković, J.. (2017). Determination of green forage and silage protein degradability of some pea (Pisum sativum L.) + oat (Avena sativa L.) mixtures grown in Serbia. in Tarim Bilimleri Dergisi
Ankara University., 23(4), 404-414.
https://doi.org/10.15832/ankutbd.385865

Blagojević M, Djordjević N, Dinić B, Vasić T, Milenković J, Petrović M, Marković J. Determination of green forage and silage protein degradability of some pea (Pisum sativum L.) + oat (Avena sativa L.) mixtures grown in Serbia. in Tarim Bilimleri Dergisi. 2017;23(4):404-414.
doi:10.15832/ankutbd.385865 .

Blagojević, M., Djordjević, Nenad, Dinić, Bora, Vasić, T., Milenković, Jasmina, Petrović, M., Marković, J., "Determination of green forage and silage protein degradability of some pea (Pisum sativum L.) + oat (Avena sativa L.) mixtures grown in Serbia" in Tarim Bilimleri Dergisi, 23, no. 4 (2017):404-414,
https://doi.org/10.15832/ankutbd.385865 . .

TY  - JOUR
AU  - Djordjević, Nenad
AU  - Popović, Zoran
AU  - Beuković, Dejan
AU  - Beuković, Miloš
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4601
AB  - The quality and quantity of natural food resources and food from agricultural land vary considerably depending on the type of the hunting ground and the season. In order to achieve better body weight of the hunted pheasants, to preserve their number and achieve better reproductive potential of these birds, supplemental feeding is necessary. Previous studies have shown that feeding of pheasants in hunting grounds in all seasons, and especially during the winter, yields positive results. The achieved results, however, are significantly dependent on the degree of anthropogenic activity in the hunting grounds, as well as the amount of natural food. Moreover, nutrition must be adequate not only in terms of the quantity, but also the quality. This means that instead of single feeds (most commonly cereals: wheat, corn, etc.), complete mixtures should be used, which is a costly solution. However, pheasants aged five or more months are increasingly in demand for hunting on the polygons. Nevertheless, hunting in preserved nature and with a diverse wildlife fund will never lose its significance.
AB  - Kvalitet i kvantitet prirodnih resursa hrane, kao i sa poljoprivrednih površina, značajno se razlikuju zavisno od tipa lovišta i godišnjeg doba. U cilju postizanja bolje odstrelne mase, očuvanja brojnosti i postizanja boljeg reproduktivnog potencijala fazana, neophodno je prihranjivanje. Dosadašnja istraživanja ukazuju da pihranjivanje fazana u lovištu, u svim godišnjim dobima, a naročito u toku zime, daje pozitivne rezultate. Međutim, postignuti rezultati značajno zavise od stepena antropogene delatnosti u lovištima, kao i od količine prirodne hrane. Pri tome, prihranjivanje mora biti adekvatno ne samo u kvantitativnom, već i u kvalitativnom smislu. Zbog toga umesto pojedinačnih hraniva (najčešće žita: pšenice, kukuruza...) treba koristiti kompletne smeše, što je skupo rešenje. Umesto toga, sve se više traže fazani starosti pet ili više meseci, za lov na poligonima. Ipak, lov u očuvanoj prirodi i sa raznovrsnim fondom divljači nikada neće izgubiti na značaju.
PB  - Univerzitet u Novom Sadu - Poljoprivredni fakultet, Novi Sad i Naučni institut za ratarstvo i povrtarstvo, Novi Sad
T2  - Savremena poljoprivreda
T1  - Recommendations and results of supplemental feeding of pheasants depending on the season
T1  - Preporuke i rezultati dodatne ishrana fazana u zavisnosti od godišnjeg doba
EP  - 14
IS  - 3-4
SP  - 8
VL  - 66
DO  - 10.1515/contagri-2017-0013
ER  - 

@article{
author = "Djordjević, Nenad and Popović, Zoran and Beuković, Dejan and Beuković, Miloš",
year = "2017",
abstract = "The quality and quantity of natural food resources and food from agricultural land vary considerably depending on the type of the hunting ground and the season. In order to achieve better body weight of the hunted pheasants, to preserve their number and achieve better reproductive potential of these birds, supplemental feeding is necessary. Previous studies have shown that feeding of pheasants in hunting grounds in all seasons, and especially during the winter, yields positive results. The achieved results, however, are significantly dependent on the degree of anthropogenic activity in the hunting grounds, as well as the amount of natural food. Moreover, nutrition must be adequate not only in terms of the quantity, but also the quality. This means that instead of single feeds (most commonly cereals: wheat, corn, etc.), complete mixtures should be used, which is a costly solution. However, pheasants aged five or more months are increasingly in demand for hunting on the polygons. Nevertheless, hunting in preserved nature and with a diverse wildlife fund will never lose its significance., Kvalitet i kvantitet prirodnih resursa hrane, kao i sa poljoprivrednih površina, značajno se razlikuju zavisno od tipa lovišta i godišnjeg doba. U cilju postizanja bolje odstrelne mase, očuvanja brojnosti i postizanja boljeg reproduktivnog potencijala fazana, neophodno je prihranjivanje. Dosadašnja istraživanja ukazuju da pihranjivanje fazana u lovištu, u svim godišnjim dobima, a naročito u toku zime, daje pozitivne rezultate. Međutim, postignuti rezultati značajno zavise od stepena antropogene delatnosti u lovištima, kao i od količine prirodne hrane. Pri tome, prihranjivanje mora biti adekvatno ne samo u kvantitativnom, već i u kvalitativnom smislu. Zbog toga umesto pojedinačnih hraniva (najčešće žita: pšenice, kukuruza...) treba koristiti kompletne smeše, što je skupo rešenje. Umesto toga, sve se više traže fazani starosti pet ili više meseci, za lov na poligonima. Ipak, lov u očuvanoj prirodi i sa raznovrsnim fondom divljači nikada neće izgubiti na značaju.",
publisher = "Univerzitet u Novom Sadu - Poljoprivredni fakultet, Novi Sad i Naučni institut za ratarstvo i povrtarstvo, Novi Sad",
journal = "Savremena poljoprivreda",
title = "Recommendations and results of supplemental feeding of pheasants depending on the season, Preporuke i rezultati dodatne ishrana fazana u zavisnosti od godišnjeg doba",
pages = "14-8",
number = "3-4",
volume = "66",
doi = "10.1515/contagri-2017-0013"
}

Djordjević, N., Popović, Z., Beuković, D.,& Beuković, M.. (2017). Recommendations and results of supplemental feeding of pheasants depending on the season. in Savremena poljoprivreda
Univerzitet u Novom Sadu - Poljoprivredni fakultet, Novi Sad i Naučni institut za ratarstvo i povrtarstvo, Novi Sad., 66(3-4), 8-14.
https://doi.org/10.1515/contagri-2017-0013

Djordjević N, Popović Z, Beuković D, Beuković M. Recommendations and results of supplemental feeding of pheasants depending on the season. in Savremena poljoprivreda. 2017;66(3-4):8-14.
doi:10.1515/contagri-2017-0013 .

Djordjević, Nenad, Popović, Zoran, Beuković, Dejan, Beuković, Miloš, "Recommendations and results of supplemental feeding of pheasants depending on the season" in Savremena poljoprivreda, 66, no. 3-4 (2017):8-14,
https://doi.org/10.1515/contagri-2017-0013 . .

TY  - JOUR
AU  - Božičković, Aleksa
AU  - Simić, Aleksandar
AU  - Grubić, Goran
AU  - Znidarsić, Tomaz
AU  - Djordjević, Nenad
AU  - Stojanović, Bojan
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4173
AB  - For all crop species, an accurate, quick, and simple method for determination of mean development stage of plants has a key role for scientific and practical use. The investigation was performed to validate a modified methodology for determination of mean stage of development in alfalfa (Medicago sativa L.). The modified methodology, mean stage by fresh weight (MSFW), assumes that mean stage by weight (MSW) could be determined by fresh, and not only by dry weight, as was required by the original methodology. A total of 198 alfalfa samples were collected in 2010 and 2011. Sampling completely covered three growth cycles: spring growth and first and second regrowths. The correlation (r) between MSW and MSFW was >0.99. In 92% of samples, absolute deviation between MSW and MSFW was  lt 0.15 on a scale between 0 and 9. The equation for prediction of MSFW based on measured MSW, MSFW-predicted = 0.9808. MSW, was developed with the data from the first year (n = 141) and tested with second-year samples (n = 57). Prediction error, expressed by root mean squared deviation (RMSD), was 0.045, while components of mean squared deviation (MSD), such as squared bias (SB), nonunity slope (NU), and lack of correlation (LC), were 8.12 x 10(-4), 5.45 x 10(-4), and 6.67 x 10(-4), respectively. Values close to zero in all three MSD components show that validation line had a approximate to 0, b approximate to 1, and r(2) approximate to 1. As a simpler methodology, MSFW gives an opportunity to be more applicable in practice with all of the benefits of the MSW methodology.
PB  - Wiley, Hoboken
T2  - Crop Science
T1  - Testing of a Modified Methodology for Determination of Mean Stage of Development in Alfalfa
EP  - 898
IS  - 2
SP  - 891
VL  - 56
DO  - 10.2135/cropsci2015.03.0156
ER  - 

@article{
author = "Božičković, Aleksa and Simić, Aleksandar and Grubić, Goran and Znidarsić, Tomaz and Djordjević, Nenad and Stojanović, Bojan",
year = "2016",
abstract = "For all crop species, an accurate, quick, and simple method for determination of mean development stage of plants has a key role for scientific and practical use. The investigation was performed to validate a modified methodology for determination of mean stage of development in alfalfa (Medicago sativa L.). The modified methodology, mean stage by fresh weight (MSFW), assumes that mean stage by weight (MSW) could be determined by fresh, and not only by dry weight, as was required by the original methodology. A total of 198 alfalfa samples were collected in 2010 and 2011. Sampling completely covered three growth cycles: spring growth and first and second regrowths. The correlation (r) between MSW and MSFW was >0.99. In 92% of samples, absolute deviation between MSW and MSFW was  lt 0.15 on a scale between 0 and 9. The equation for prediction of MSFW based on measured MSW, MSFW-predicted = 0.9808. MSW, was developed with the data from the first year (n = 141) and tested with second-year samples (n = 57). Prediction error, expressed by root mean squared deviation (RMSD), was 0.045, while components of mean squared deviation (MSD), such as squared bias (SB), nonunity slope (NU), and lack of correlation (LC), were 8.12 x 10(-4), 5.45 x 10(-4), and 6.67 x 10(-4), respectively. Values close to zero in all three MSD components show that validation line had a approximate to 0, b approximate to 1, and r(2) approximate to 1. As a simpler methodology, MSFW gives an opportunity to be more applicable in practice with all of the benefits of the MSW methodology.",
publisher = "Wiley, Hoboken",
journal = "Crop Science",
title = "Testing of a Modified Methodology for Determination of Mean Stage of Development in Alfalfa",
pages = "898-891",
number = "2",
volume = "56",
doi = "10.2135/cropsci2015.03.0156"
}

Božičković, A., Simić, A., Grubić, G., Znidarsić, T., Djordjević, N.,& Stojanović, B.. (2016). Testing of a Modified Methodology for Determination of Mean Stage of Development in Alfalfa. in Crop Science
Wiley, Hoboken., 56(2), 891-898.
https://doi.org/10.2135/cropsci2015.03.0156

Božičković A, Simić A, Grubić G, Znidarsić T, Djordjević N, Stojanović B. Testing of a Modified Methodology for Determination of Mean Stage of Development in Alfalfa. in Crop Science. 2016;56(2):891-898.
doi:10.2135/cropsci2015.03.0156 .

Božičković, Aleksa, Simić, Aleksandar, Grubić, Goran, Znidarsić, Tomaz, Djordjević, Nenad, Stojanović, Bojan, "Testing of a Modified Methodology for Determination of Mean Stage of Development in Alfalfa" in Crop Science, 56, no. 2 (2016):891-898,
https://doi.org/10.2135/cropsci2015.03.0156 . .

TY  - JOUR
AU  - Dragičević, Vesna
AU  - Šaponjić, Bojana V.
AU  - Terzić, Dušanka R.
AU  - Simić, Milena
AU  - Djordjević, Nenad
AU  - Dumanović, Zoran J.
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4231
AB  - In rain-fed cropping, defining the best combination of practices could achieve high forage yield and silage quality. The aim of this study was to compare energetic quality of produced silage with productive characteristics of forage maize cultivated on alluvium and hydromorphous black soil in rain-fed conditions at four plant densities (68-74,000 plants ha-1) during the period 2005-2010. Yield and energy parameters were increased to some extent at higher crop densities indicating that higher densities (74,000 plants ha-1) were potentially better for high forage and DM yields, while lower densities (70,000 plants ha-1) were better for the increase of energy parameters of produced silage.
AB  - U uslovima prirodnog vodnog režima, definisanje adekvatne kombinacije mera gajenja može doprineti povećanju prinosa i kvaliteta silaže. Cilj eksperimenta je bio da se uporede energetski kvalitet silaže sa produktivnim osobinama silažnog kukuruza gajenog na aluvijumu i ritskoj crnici u uslovima prirodnog vodnog režima, pri četiri gustine useva (68-74.000 biljaka ha-1) tokom 2005-2010. godine. Prinos i energetski parametri su povećani u određenom stepenu pri većoj gustini gajenja, ukazujući da su veće gustine (74.000 biljaka ha-1) potencijalno bolje za povećanje prinosa biomase i suve materije, dok su manje gustine (70.000 biljaka ha-1) bolje za povećanje energetskih parametara proizvedene silaže.
PB  - Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd
T2  - Journal of Agricultural Sciences (Belgrade)
T1  - Environmental conditions and crop density as the limiting factors of forage maize production
T1  - Uslovi okoline i gustina useva kao limitirajući faktori proizvodnje silažnog kukuruza
EP  - 18
IS  - 1
SP  - 11
VL  - 61
DO  - 10.2298/JAS1601011D
ER  - 

@article{
author = "Dragičević, Vesna and Šaponjić, Bojana V. and Terzić, Dušanka R. and Simić, Milena and Djordjević, Nenad and Dumanović, Zoran J.",
year = "2016",
abstract = "In rain-fed cropping, defining the best combination of practices could achieve high forage yield and silage quality. The aim of this study was to compare energetic quality of produced silage with productive characteristics of forage maize cultivated on alluvium and hydromorphous black soil in rain-fed conditions at four plant densities (68-74,000 plants ha-1) during the period 2005-2010. Yield and energy parameters were increased to some extent at higher crop densities indicating that higher densities (74,000 plants ha-1) were potentially better for high forage and DM yields, while lower densities (70,000 plants ha-1) were better for the increase of energy parameters of produced silage., U uslovima prirodnog vodnog režima, definisanje adekvatne kombinacije mera gajenja može doprineti povećanju prinosa i kvaliteta silaže. Cilj eksperimenta je bio da se uporede energetski kvalitet silaže sa produktivnim osobinama silažnog kukuruza gajenog na aluvijumu i ritskoj crnici u uslovima prirodnog vodnog režima, pri četiri gustine useva (68-74.000 biljaka ha-1) tokom 2005-2010. godine. Prinos i energetski parametri su povećani u određenom stepenu pri većoj gustini gajenja, ukazujući da su veće gustine (74.000 biljaka ha-1) potencijalno bolje za povećanje prinosa biomase i suve materije, dok su manje gustine (70.000 biljaka ha-1) bolje za povećanje energetskih parametara proizvedene silaže.",
publisher = "Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd",
journal = "Journal of Agricultural Sciences (Belgrade)",
title = "Environmental conditions and crop density as the limiting factors of forage maize production, Uslovi okoline i gustina useva kao limitirajući faktori proizvodnje silažnog kukuruza",
pages = "18-11",
number = "1",
volume = "61",
doi = "10.2298/JAS1601011D"
}

Dragičević, V., Šaponjić, B. V., Terzić, D. R., Simić, M., Djordjević, N.,& Dumanović, Z. J.. (2016). Environmental conditions and crop density as the limiting factors of forage maize production. in Journal of Agricultural Sciences (Belgrade)
Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd., 61(1), 11-18.
https://doi.org/10.2298/JAS1601011D

Dragičević V, Šaponjić BV, Terzić DR, Simić M, Djordjević N, Dumanović ZJ. Environmental conditions and crop density as the limiting factors of forage maize production. in Journal of Agricultural Sciences (Belgrade). 2016;61(1):11-18.
doi:10.2298/JAS1601011D .

Dragičević, Vesna, Šaponjić, Bojana V., Terzić, Dušanka R., Simić, Milena, Djordjević, Nenad, Dumanović, Zoran J., "Environmental conditions and crop density as the limiting factors of forage maize production" in Journal of Agricultural Sciences (Belgrade), 61, no. 1 (2016):11-18,
https://doi.org/10.2298/JAS1601011D . .

TY  - JOUR
AU  - Djordjević, Nenad
AU  - Dinić, Bora
AU  - Grubić, Goran
AU  - Stojanović, Bojan
AU  - Božičković, Aleksa
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3936
AB  - The results of ensiling of various byproducts of crops, vegetables, food and vine industry are shown in the article. These products are ensiled because of their high moisture content, while their nitrogen content is increased by mixing them with fresh lucerne or its hay, or non-protein nitrogen (NPN) compounds are added. The results of domestic experiments show that better results are achieved when lucerne was added, considering lower pH values and lower amounts of ammonia and soluble nitrogen in the produced silages. However, when grape pomace was ensiled in September the problem is low availability of lucerne and that is why NPN compounds are utilized. When they are used the amount of soluble nitrogen matters in silage is increased, which may cause some negative influence on production, health and fertility in ruminants.
AB  - U radu su prikazani rezultati siliranja različitih pratećih proizvoda ratarstva, povrtarstva, prehrambene industrije i vinarija. Navedeni proizvodi se, zbog visokog sadržaja vlage, konzervišu siliranjem a u cilju povećanja sadržaja sirovih proteina vrši se njihovo kombinovanje sa zelenom lucerkom i lucerkinim senom, ili se dodaju NPN jedinjenja. Rezultati domaćih eksperimenata pokazuju da se pri upotrebi lucerke dobijaju bolji rezultati u pogledu kvaliteta silaža, odnosno manje pH vrednosti i manje količine amonijačnog i rastvorljivog azota. Međutim, pri siliranju komine grožđa u septembru mesecu, javlja se problem zbog malih količina lucerke, zbog čega se koriste NPN jedinjenja. Njihovom upotrebom povećava se količina rastvorljivih azotnih materija u silaži, što može biti problem za proizvodnost, zdravlje i plodnost preživara.
PB  - Institut PKB Agroekonomik, Padinska skela
T2  - Zbornik naučnih radova Instituta PKB Agroekonomik
T1  - Improvement of silages prepared from byproducts with natural or synthetic nitrogen sources
T1  - Oplemenjivanje silaže od pratećih proizvoda upotrebom prirodnih ili sintetičkih izvora azota
EP  - 72
IS  - 3-4
SP  - 65
VL  - 21
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3936
ER  - 

@article{
author = "Djordjević, Nenad and Dinić, Bora and Grubić, Goran and Stojanović, Bojan and Božičković, Aleksa",
year = "2015",
abstract = "The results of ensiling of various byproducts of crops, vegetables, food and vine industry are shown in the article. These products are ensiled because of their high moisture content, while their nitrogen content is increased by mixing them with fresh lucerne or its hay, or non-protein nitrogen (NPN) compounds are added. The results of domestic experiments show that better results are achieved when lucerne was added, considering lower pH values and lower amounts of ammonia and soluble nitrogen in the produced silages. However, when grape pomace was ensiled in September the problem is low availability of lucerne and that is why NPN compounds are utilized. When they are used the amount of soluble nitrogen matters in silage is increased, which may cause some negative influence on production, health and fertility in ruminants., U radu su prikazani rezultati siliranja različitih pratećih proizvoda ratarstva, povrtarstva, prehrambene industrije i vinarija. Navedeni proizvodi se, zbog visokog sadržaja vlage, konzervišu siliranjem a u cilju povećanja sadržaja sirovih proteina vrši se njihovo kombinovanje sa zelenom lucerkom i lucerkinim senom, ili se dodaju NPN jedinjenja. Rezultati domaćih eksperimenata pokazuju da se pri upotrebi lucerke dobijaju bolji rezultati u pogledu kvaliteta silaža, odnosno manje pH vrednosti i manje količine amonijačnog i rastvorljivog azota. Međutim, pri siliranju komine grožđa u septembru mesecu, javlja se problem zbog malih količina lucerke, zbog čega se koriste NPN jedinjenja. Njihovom upotrebom povećava se količina rastvorljivih azotnih materija u silaži, što može biti problem za proizvodnost, zdravlje i plodnost preživara.",
publisher = "Institut PKB Agroekonomik, Padinska skela",
journal = "Zbornik naučnih radova Instituta PKB Agroekonomik",
title = "Improvement of silages prepared from byproducts with natural or synthetic nitrogen sources, Oplemenjivanje silaže od pratećih proizvoda upotrebom prirodnih ili sintetičkih izvora azota",
pages = "72-65",
number = "3-4",
volume = "21",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3936"
}

Djordjević, N., Dinić, B., Grubić, G., Stojanović, B.,& Božičković, A.. (2015). Improvement of silages prepared from byproducts with natural or synthetic nitrogen sources. in Zbornik naučnih radova Instituta PKB Agroekonomik
Institut PKB Agroekonomik, Padinska skela., 21(3-4), 65-72.
https://hdl.handle.net/21.15107/rcub_agrospace_3936

Djordjević N, Dinić B, Grubić G, Stojanović B, Božičković A. Improvement of silages prepared from byproducts with natural or synthetic nitrogen sources. in Zbornik naučnih radova Instituta PKB Agroekonomik. 2015;21(3-4):65-72.
https://hdl.handle.net/21.15107/rcub_agrospace_3936 .

Djordjević, Nenad, Dinić, Bora, Grubić, Goran, Stojanović, Bojan, Božičković, Aleksa, "Improvement of silages prepared from byproducts with natural or synthetic nitrogen sources" in Zbornik naučnih radova Instituta PKB Agroekonomik, 21, no. 3-4 (2015):65-72,
https://hdl.handle.net/21.15107/rcub_agrospace_3936 .

TY  - JOUR
AU  - Djordjević, Nenad
AU  - Dinić, Bora
AU  - Popović, Zoran
AU  - Beuković, Dejan
AU  - Beuković, Miloš
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3930
AB  - The paper presents the needs of pheasant flock and the possibility of designing a mixture with substitutions feed of animal origin or products of soybean processing. Basis of concrete examples, three types of concentrate mixtures, it can be seen that the preparation of concentrate mixtures for pheasants hens possible without the use of animal feedstuffs, while reducing the share of products of soybean processing, using synthetic amino acids. Thanks to this, a lower price and concentrate mixtures. At the same time, it is possible to fulfill the requirements in accordance with the standards and restrictions for certain nutrients because of the presence of some toxic matters.
AB  - U radu su izložene potrebe matičnog jata fazana i mogućnost balansiranja smeša uz supstituciju hraniva animalnog porekla ili proizvoda prerade soje. Na osnovu konkretnih primera, odnosno tri vrste smeša koncentrata, vidi se da je pripremanje smeša koncentrata za fazanke nosilje moguće bez upotrebe hraniva animalnog porekla, uz smanjenje udela proizvoda prerade soje, korišćenjem sintetičkih aminokiselina. Zahvaljujući tome, postiže se i niža cena smeša koncentrata. Istovremeno, na taj način moguće je ispuniti zahteve u skladu sa normativima, kao i ograničenja za pojedina hraniva zbog prisustva nekih antinutritivnih materija.
PB  - Institut PKB Agroekonomik, Padinska skela
T2  - Zbornik naučnih radova Instituta PKB Agroekonomik
T1  - Balancing parent flock concentrate mixture accordance with the norms and restrictions
T1  - Balansiranje smeša koncentrata za matično jato fazana u skladu sa normativima i ograničenjima
EP  - 151
IS  - 3-4
SP  - 145
VL  - 21
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3930
ER  - 

@article{
author = "Djordjević, Nenad and Dinić, Bora and Popović, Zoran and Beuković, Dejan and Beuković, Miloš",
year = "2015",
abstract = "The paper presents the needs of pheasant flock and the possibility of designing a mixture with substitutions feed of animal origin or products of soybean processing. Basis of concrete examples, three types of concentrate mixtures, it can be seen that the preparation of concentrate mixtures for pheasants hens possible without the use of animal feedstuffs, while reducing the share of products of soybean processing, using synthetic amino acids. Thanks to this, a lower price and concentrate mixtures. At the same time, it is possible to fulfill the requirements in accordance with the standards and restrictions for certain nutrients because of the presence of some toxic matters., U radu su izložene potrebe matičnog jata fazana i mogućnost balansiranja smeša uz supstituciju hraniva animalnog porekla ili proizvoda prerade soje. Na osnovu konkretnih primera, odnosno tri vrste smeša koncentrata, vidi se da je pripremanje smeša koncentrata za fazanke nosilje moguće bez upotrebe hraniva animalnog porekla, uz smanjenje udela proizvoda prerade soje, korišćenjem sintetičkih aminokiselina. Zahvaljujući tome, postiže se i niža cena smeša koncentrata. Istovremeno, na taj način moguće je ispuniti zahteve u skladu sa normativima, kao i ograničenja za pojedina hraniva zbog prisustva nekih antinutritivnih materija.",
publisher = "Institut PKB Agroekonomik, Padinska skela",
journal = "Zbornik naučnih radova Instituta PKB Agroekonomik",
title = "Balancing parent flock concentrate mixture accordance with the norms and restrictions, Balansiranje smeša koncentrata za matično jato fazana u skladu sa normativima i ograničenjima",
pages = "151-145",
number = "3-4",
volume = "21",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3930"
}

Djordjević, N., Dinić, B., Popović, Z., Beuković, D.,& Beuković, M.. (2015). Balancing parent flock concentrate mixture accordance with the norms and restrictions. in Zbornik naučnih radova Instituta PKB Agroekonomik
Institut PKB Agroekonomik, Padinska skela., 21(3-4), 145-151.
https://hdl.handle.net/21.15107/rcub_agrospace_3930

Djordjević N, Dinić B, Popović Z, Beuković D, Beuković M. Balancing parent flock concentrate mixture accordance with the norms and restrictions. in Zbornik naučnih radova Instituta PKB Agroekonomik. 2015;21(3-4):145-151.
https://hdl.handle.net/21.15107/rcub_agrospace_3930 .

Djordjević, Nenad, Dinić, Bora, Popović, Zoran, Beuković, Dejan, Beuković, Miloš, "Balancing parent flock concentrate mixture accordance with the norms and restrictions" in Zbornik naučnih radova Instituta PKB Agroekonomik, 21, no. 3-4 (2015):145-151,
https://hdl.handle.net/21.15107/rcub_agrospace_3930 .

TY  - JOUR
AU  - Djordjević, Nenad
AU  - Popović, Zoran
AU  - Beuković, Dejan
AU  - Beuković, Miloš
AU  - Živković, Dragić
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3984
AB  - This paper presents an results overview from experiments about supplemental nutrition pheasant hunting grounds, during reproduction period. Previous studies have generally followed the effects of using a grain cereals (wheat and barley) for the purpose of supplemental nutrition hens to reproductive parameters. Due to the fact that the grain carbohydrate nutrient is deficient to protein and calcium, results are lacking, or were minimal in some parameters. Therefore, the proposed use feed properly balanced all the necessary nutrients, with the maximum feeder dispersion (one feeder per territory males), in order to reduce predation and direct losses of birds and eggs.
AB  - U radu je izložen pregled rezultata istraživanja o dopunskoj ishrani fazana u lovištima za vreme reprodukcije. Dosadašnja istraživanja su uglavnom pratila efekte korišćenja zrna nekog žita (pšenice ili ječma) u cilju dopunske ishrane fazanki. Zbog činjenice da su žita ugljenohidratna hraniva, deficitarna u proteinima i kalcijumu, rezultati su izostali. Zbog toga se predlaže korišćenje adekvatno balansirane hrane na sve potrebne hranljive sastojke, uz maksimalnu disperziju hranilica (jedna hranilica po jednoj teritoriji mužjaka) u cilju smanjenja predatorstva i direktnih gubitaka ptica i jaja.
PB  - Institut PKB Agroekonomik, Padinska skela
T2  - Zbornik naučnih radova Instituta PKB Agroekonomik
T1  - Effects of provisioned feed grains to reproductive parameters of pheasant at spring
T1  - Efekti dodatne prolećne ishrane zrnastom hranom na reproduktivne parametre fazana
EP  - 144
IS  - 3-4
SP  - 139
VL  - 21
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3984
ER  - 

@article{
author = "Djordjević, Nenad and Popović, Zoran and Beuković, Dejan and Beuković, Miloš and Živković, Dragić",
year = "2015",
abstract = "This paper presents an results overview from experiments about supplemental nutrition pheasant hunting grounds, during reproduction period. Previous studies have generally followed the effects of using a grain cereals (wheat and barley) for the purpose of supplemental nutrition hens to reproductive parameters. Due to the fact that the grain carbohydrate nutrient is deficient to protein and calcium, results are lacking, or were minimal in some parameters. Therefore, the proposed use feed properly balanced all the necessary nutrients, with the maximum feeder dispersion (one feeder per territory males), in order to reduce predation and direct losses of birds and eggs., U radu je izložen pregled rezultata istraživanja o dopunskoj ishrani fazana u lovištima za vreme reprodukcije. Dosadašnja istraživanja su uglavnom pratila efekte korišćenja zrna nekog žita (pšenice ili ječma) u cilju dopunske ishrane fazanki. Zbog činjenice da su žita ugljenohidratna hraniva, deficitarna u proteinima i kalcijumu, rezultati su izostali. Zbog toga se predlaže korišćenje adekvatno balansirane hrane na sve potrebne hranljive sastojke, uz maksimalnu disperziju hranilica (jedna hranilica po jednoj teritoriji mužjaka) u cilju smanjenja predatorstva i direktnih gubitaka ptica i jaja.",
publisher = "Institut PKB Agroekonomik, Padinska skela",
journal = "Zbornik naučnih radova Instituta PKB Agroekonomik",
title = "Effects of provisioned feed grains to reproductive parameters of pheasant at spring, Efekti dodatne prolećne ishrane zrnastom hranom na reproduktivne parametre fazana",
pages = "144-139",
number = "3-4",
volume = "21",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3984"
}

Djordjević, N., Popović, Z., Beuković, D., Beuković, M.,& Živković, D.. (2015). Effects of provisioned feed grains to reproductive parameters of pheasant at spring. in Zbornik naučnih radova Instituta PKB Agroekonomik
Institut PKB Agroekonomik, Padinska skela., 21(3-4), 139-144.
https://hdl.handle.net/21.15107/rcub_agrospace_3984

Djordjević N, Popović Z, Beuković D, Beuković M, Živković D. Effects of provisioned feed grains to reproductive parameters of pheasant at spring. in Zbornik naučnih radova Instituta PKB Agroekonomik. 2015;21(3-4):139-144.
https://hdl.handle.net/21.15107/rcub_agrospace_3984 .

Djordjević, Nenad, Popović, Zoran, Beuković, Dejan, Beuković, Miloš, Živković, Dragić, "Effects of provisioned feed grains to reproductive parameters of pheasant at spring" in Zbornik naučnih radova Instituta PKB Agroekonomik, 21, no. 3-4 (2015):139-144,
https://hdl.handle.net/21.15107/rcub_agrospace_3984 .

TY  - JOUR
AU  - Stojanović, Bojan
AU  - Grubić, Goran
AU  - Djordjević, Nenad
AU  - Božičković, Aleksa
AU  - Ivetić, Aleksandra
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3944
AB  - In paper there were considered principles and characteristics of pasture utilization in dairy cattle nutrition and significant factors that affect pasture intake. The effects of supplementary nutrition on production performances of dairy cows were also considered. Milk yield of dairy cows on pasture is limited with inability for DM and energy intake to meet requirements for high milk yield, and by imbalance of fermentable carbohydrates and rumen degradable protein. Intake of DM of the grazing dairy cows may reach 3.25-3.5%o BW. On high quality pasture, energy intake from pasture can meet requirements of dairy cows for milk production of 21-24 kg/day. Crude protein content in consumed pasture meets requirements of dairy cows for 17-33% higher milk yield relative to supplied energy from intake pasture. Milk production increases with the amount of concentrate supplementation up to 10 kg DM/day, as also milk fat and protein yield, while milk fat percentage decreases.
AB  - U radu su razmatrani osnovni principi i karakteristike korišćenja paše u ishrani muznih krava, kao i najznačajniji faktori od kojih zavisi mogućnost konzumiranja paše. Razmatran je uticaj dopunske ishrane na konzumiranje paše i proizvodne performanse muznih krava. Prinos mleka kod krava na paši ograničen je nemogućnošću da konzumiraju dovoljno suve materije (SM) i energije za visoku proizvodnju mleka, i neizbalansiranošću fermentabilnih ugljenih hidrata i proteina razgradivih u rumenu. Konzumiranje SM kod krava na paši može dostići 3,25-3,5% TM. U uslovima kvalitetne ispaše, količina konzumirane energije iz paše može podmiriti potrebe krava za proizvodnju mleka od 21-24 kg/dan. Sadržaj proteina u konzumiranoj paši obezbeđuje potrebe krava u laktaciji za 17­33% veću proizvodnju mleka, u odnosu na količinu obezbeđene energije. Prinos mleka kod krava na paši se povećava sa dodatom kolicinom koncentrovane hrane u obroku do 10 kgSM/dan, kao i prinos mlečne masti i proteina, dok se sadržaj masti u mleku smanjuje.
PB  - Institut PKB Agroekonomik, Padinska skela
T2  - Zbornik naučnih radova Instituta PKB Agroekonomik
T1  - Pasture in dairy cows nutrition
T1  - Paša u ishrani muznih krava
EP  - 64
IS  - 3-4
SP  - 55
VL  - 21
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3944
ER  - 

@article{
author = "Stojanović, Bojan and Grubić, Goran and Djordjević, Nenad and Božičković, Aleksa and Ivetić, Aleksandra",
year = "2015",
abstract = "In paper there were considered principles and characteristics of pasture utilization in dairy cattle nutrition and significant factors that affect pasture intake. The effects of supplementary nutrition on production performances of dairy cows were also considered. Milk yield of dairy cows on pasture is limited with inability for DM and energy intake to meet requirements for high milk yield, and by imbalance of fermentable carbohydrates and rumen degradable protein. Intake of DM of the grazing dairy cows may reach 3.25-3.5%o BW. On high quality pasture, energy intake from pasture can meet requirements of dairy cows for milk production of 21-24 kg/day. Crude protein content in consumed pasture meets requirements of dairy cows for 17-33% higher milk yield relative to supplied energy from intake pasture. Milk production increases with the amount of concentrate supplementation up to 10 kg DM/day, as also milk fat and protein yield, while milk fat percentage decreases., U radu su razmatrani osnovni principi i karakteristike korišćenja paše u ishrani muznih krava, kao i najznačajniji faktori od kojih zavisi mogućnost konzumiranja paše. Razmatran je uticaj dopunske ishrane na konzumiranje paše i proizvodne performanse muznih krava. Prinos mleka kod krava na paši ograničen je nemogućnošću da konzumiraju dovoljno suve materije (SM) i energije za visoku proizvodnju mleka, i neizbalansiranošću fermentabilnih ugljenih hidrata i proteina razgradivih u rumenu. Konzumiranje SM kod krava na paši može dostići 3,25-3,5% TM. U uslovima kvalitetne ispaše, količina konzumirane energije iz paše može podmiriti potrebe krava za proizvodnju mleka od 21-24 kg/dan. Sadržaj proteina u konzumiranoj paši obezbeđuje potrebe krava u laktaciji za 17­33% veću proizvodnju mleka, u odnosu na količinu obezbeđene energije. Prinos mleka kod krava na paši se povećava sa dodatom kolicinom koncentrovane hrane u obroku do 10 kgSM/dan, kao i prinos mlečne masti i proteina, dok se sadržaj masti u mleku smanjuje.",
publisher = "Institut PKB Agroekonomik, Padinska skela",
journal = "Zbornik naučnih radova Instituta PKB Agroekonomik",
title = "Pasture in dairy cows nutrition, Paša u ishrani muznih krava",
pages = "64-55",
number = "3-4",
volume = "21",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3944"
}

Stojanović, B., Grubić, G., Djordjević, N., Božičković, A.,& Ivetić, A.. (2015). Pasture in dairy cows nutrition. in Zbornik naučnih radova Instituta PKB Agroekonomik
Institut PKB Agroekonomik, Padinska skela., 21(3-4), 55-64.
https://hdl.handle.net/21.15107/rcub_agrospace_3944

Stojanović B, Grubić G, Djordjević N, Božičković A, Ivetić A. Pasture in dairy cows nutrition. in Zbornik naučnih radova Instituta PKB Agroekonomik. 2015;21(3-4):55-64.
https://hdl.handle.net/21.15107/rcub_agrospace_3944 .

Stojanović, Bojan, Grubić, Goran, Djordjević, Nenad, Božičković, Aleksa, Ivetić, Aleksandra, "Pasture in dairy cows nutrition" in Zbornik naučnih radova Instituta PKB Agroekonomik, 21, no. 3-4 (2015):55-64,
https://hdl.handle.net/21.15107/rcub_agrospace_3944 .

TY  - JOUR
AU  - Djordjević, Nenad
AU  - Dinić, Bora
AU  - Grubić, Goran
AU  - Stojanović, Bojan
AU  - Božičković, Aleksa
AU  - Dubljević, Radislav
AU  - Mitrović, Dragoljub
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3934
AB  - The results of experiments where lucerne, maize, sunflower and sorghum were ensiled and the importance of compression level on the quality of obtained silages were presented in the paper. Level of compression is more important in silages with higher dry matter content, with more mature material which is also cut in longer particles. With the higher level of silage mass compression the higher degree of anaerobic condition is provided and therefore higher production of lactic acid with lower production of acetic acid, which results in lower pH values. With higher compression of silages the total loss of nutrients is reduced, although it may be higher when moisture content is higher. That is why with perennial legumes and grasses it is better to wilt the material, while maize and sorghum are cut at the optimum maturity phase, prior to ensiling.
AB  - U radu su prikazani rezultati eksperimenata siliranja lucerke, kukuruza, suncokreta i sirka, i značaj stepena sabijenosti za kvalitet silaža od različitog materijala. Stepen kompresije je utoliko značajniji ukoliko materijal koji se silira ima veći sadržaj suve materije, potiče od zrelijeg materijala i krupnije je seckan. Pri većem stepenu sabijanja silomase u startu se obezbeđuje veći stepen anaerobnosti, te je veća produkcija mlečne i manja produkcija sirćetne kiseline, odnosno potižu se niže pH vrednosti. Pri boljem stepenu sabijenosti smanjuju se i ukupni gubici u hranljivim materijama, mada oni mogu da budu veći kod vlažnijeg materijala. Zato se kod višegodišnjih leguminoza i trava vrši provenjavanje a za kukuruz, suncokret i sirak siliranje se obavlja u optimalnoj fazi zrelosti.
PB  - Institut PKB Agroekonomik, Padinska skela
T2  - Zbornik naučnih radova Instituta PKB Agroekonomik
T1  - The importance of compression level as a factor in silage quality
T1  - Značaj stepena sabijenosti kao faktora kvaliteta silaže
EP  - 80
IS  - 3-4
SP  - 73
VL  - 21
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3934
ER  - 

@article{
author = "Djordjević, Nenad and Dinić, Bora and Grubić, Goran and Stojanović, Bojan and Božičković, Aleksa and Dubljević, Radislav and Mitrović, Dragoljub",
year = "2015",
abstract = "The results of experiments where lucerne, maize, sunflower and sorghum were ensiled and the importance of compression level on the quality of obtained silages were presented in the paper. Level of compression is more important in silages with higher dry matter content, with more mature material which is also cut in longer particles. With the higher level of silage mass compression the higher degree of anaerobic condition is provided and therefore higher production of lactic acid with lower production of acetic acid, which results in lower pH values. With higher compression of silages the total loss of nutrients is reduced, although it may be higher when moisture content is higher. That is why with perennial legumes and grasses it is better to wilt the material, while maize and sorghum are cut at the optimum maturity phase, prior to ensiling., U radu su prikazani rezultati eksperimenata siliranja lucerke, kukuruza, suncokreta i sirka, i značaj stepena sabijenosti za kvalitet silaža od različitog materijala. Stepen kompresije je utoliko značajniji ukoliko materijal koji se silira ima veći sadržaj suve materije, potiče od zrelijeg materijala i krupnije je seckan. Pri većem stepenu sabijanja silomase u startu se obezbeđuje veći stepen anaerobnosti, te je veća produkcija mlečne i manja produkcija sirćetne kiseline, odnosno potižu se niže pH vrednosti. Pri boljem stepenu sabijenosti smanjuju se i ukupni gubici u hranljivim materijama, mada oni mogu da budu veći kod vlažnijeg materijala. Zato se kod višegodišnjih leguminoza i trava vrši provenjavanje a za kukuruz, suncokret i sirak siliranje se obavlja u optimalnoj fazi zrelosti.",
publisher = "Institut PKB Agroekonomik, Padinska skela",
journal = "Zbornik naučnih radova Instituta PKB Agroekonomik",
title = "The importance of compression level as a factor in silage quality, Značaj stepena sabijenosti kao faktora kvaliteta silaže",
pages = "80-73",
number = "3-4",
volume = "21",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3934"
}

Djordjević, N., Dinić, B., Grubić, G., Stojanović, B., Božičković, A., Dubljević, R.,& Mitrović, D.. (2015). The importance of compression level as a factor in silage quality. in Zbornik naučnih radova Instituta PKB Agroekonomik
Institut PKB Agroekonomik, Padinska skela., 21(3-4), 73-80.
https://hdl.handle.net/21.15107/rcub_agrospace_3934

Djordjević N, Dinić B, Grubić G, Stojanović B, Božičković A, Dubljević R, Mitrović D. The importance of compression level as a factor in silage quality. in Zbornik naučnih radova Instituta PKB Agroekonomik. 2015;21(3-4):73-80.
https://hdl.handle.net/21.15107/rcub_agrospace_3934 .

Djordjević, Nenad, Dinić, Bora, Grubić, Goran, Stojanović, Bojan, Božičković, Aleksa, Dubljević, Radislav, Mitrović, Dragoljub, "The importance of compression level as a factor in silage quality" in Zbornik naučnih radova Instituta PKB Agroekonomik, 21, no. 3-4 (2015):73-80,
https://hdl.handle.net/21.15107/rcub_agrospace_3934 .

TY  - JOUR
AU  - Dinić, Bora
AU  - Djordjević, Nenad
AU  - Marković, J.
AU  - Sokolović, Dejan
AU  - Blagojević, M.
AU  - Terzić, D.
AU  - Babić, S.
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3898
AB  - In this study grape pomace was ensilaged without and with the addition of NPN substances (Benural) at the dose of 0.5, 1.0 and 1.5% of the amount of husk and with the addition of inoculant based on homo and hetero fermentative lactic acid bacteria. The greatest effect on the nutritional value had application of Benural, especially in increasing the CP content from 126.9 to 178.3 g kg-1DM, an increase of over 40%. Application of Benural increased the ammonia and soluble nitrogen several times, but even with the maximum addition of Benural percentage of ammonia nitrogen in the total nitrogen reached only slightly above 5% NH3 -N/Σ N (5.38%), while the percentage of soluble nitrogen in total nitrogen was 28.29%. The application of inoculants generally had no significant impact, both on the chemical composition and the fermentation process.
AB  - U istraživaniima komina grožđa je silirana bez i uz dodatak NPN supstanci (Benural) u količini od 0,5; 1,0 i 1,5% od količine komina i sa dodatkom inokulantana na bazi homo i heterofementativnih mlečno-kiselinskih bakterija. Najveći efekat na hranljivu vrednost imala je primena NPN, posebno u povećanju sadržaja SP od 126,9 na 178,3 gkg-1SM. Primena NPN supstanci je uticala na povećanje amonijačnog i rastvorljivog azota nekoliko puta, ali i pri najvećoj količini dodatog NPN supstanci udeo amonijačnog azota u ukupnom azotu je neznatno prešao vrednost od 5% (%NH3-N/ΣN 5,38) dok je udeo rastvorljivog azota u ukupnom azotu iznosio 28,29%. Primena inokulanata uglavnom nije imala značajnog uticaja, kako na hemijski sastav, tako i na proces fermentacije.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - Impact of non-protein nitrogen substances on grape pomace silage quality
T1  - Uticaj dodavanja neproteinskih azotnih supstanci na kvalitet silaže komine grožđa
EP  - 440
IS  - 3
SP  - 433
VL  - 31
DO  - 10.2298/BAH1503433D
ER  - 

@article{
author = "Dinić, Bora and Djordjević, Nenad and Marković, J. and Sokolović, Dejan and Blagojević, M. and Terzić, D. and Babić, S.",
year = "2015",
abstract = "In this study grape pomace was ensilaged without and with the addition of NPN substances (Benural) at the dose of 0.5, 1.0 and 1.5% of the amount of husk and with the addition of inoculant based on homo and hetero fermentative lactic acid bacteria. The greatest effect on the nutritional value had application of Benural, especially in increasing the CP content from 126.9 to 178.3 g kg-1DM, an increase of over 40%. Application of Benural increased the ammonia and soluble nitrogen several times, but even with the maximum addition of Benural percentage of ammonia nitrogen in the total nitrogen reached only slightly above 5% NH3 -N/Σ N (5.38%), while the percentage of soluble nitrogen in total nitrogen was 28.29%. The application of inoculants generally had no significant impact, both on the chemical composition and the fermentation process., U istraživaniima komina grožđa je silirana bez i uz dodatak NPN supstanci (Benural) u količini od 0,5; 1,0 i 1,5% od količine komina i sa dodatkom inokulantana na bazi homo i heterofementativnih mlečno-kiselinskih bakterija. Najveći efekat na hranljivu vrednost imala je primena NPN, posebno u povećanju sadržaja SP od 126,9 na 178,3 gkg-1SM. Primena NPN supstanci je uticala na povećanje amonijačnog i rastvorljivog azota nekoliko puta, ali i pri najvećoj količini dodatog NPN supstanci udeo amonijačnog azota u ukupnom azotu je neznatno prešao vrednost od 5% (%NH3-N/ΣN 5,38) dok je udeo rastvorljivog azota u ukupnom azotu iznosio 28,29%. Primena inokulanata uglavnom nije imala značajnog uticaja, kako na hemijski sastav, tako i na proces fermentacije.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "Impact of non-protein nitrogen substances on grape pomace silage quality, Uticaj dodavanja neproteinskih azotnih supstanci na kvalitet silaže komine grožđa",
pages = "440-433",
number = "3",
volume = "31",
doi = "10.2298/BAH1503433D"
}

Dinić, B., Djordjević, N., Marković, J., Sokolović, D., Blagojević, M., Terzić, D.,& Babić, S.. (2015). Impact of non-protein nitrogen substances on grape pomace silage quality. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 31(3), 433-440.
https://doi.org/10.2298/BAH1503433D

Dinić B, Djordjević N, Marković J, Sokolović D, Blagojević M, Terzić D, Babić S. Impact of non-protein nitrogen substances on grape pomace silage quality. in Biotechnology in Animal Husbandry. 2015;31(3):433-440.
doi:10.2298/BAH1503433D .

Dinić, Bora, Djordjević, Nenad, Marković, J., Sokolović, Dejan, Blagojević, M., Terzić, D., Babić, S., "Impact of non-protein nitrogen substances on grape pomace silage quality" in Biotechnology in Animal Husbandry, 31, no. 3 (2015):433-440,
https://doi.org/10.2298/BAH1503433D . .

TY  - CONF
AU  - Stojanović, B
AU  - Grubić, Goran
AU  - Djordjević, Nenad
AU  - Božičković, Aleksa
AU  - Ivetić, A
PY  - 2014
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5543
AB  - The objective of this paper was to consider the effect of supplementary feeding of grazing dairy cows on dry matter intake (DMI), milk production and milk composition. Accurate estimations of total DMI and pasture DMI are important to the management of dairy grazing systems. The intakes of dry matter (DM) and net energy-NEL are lower on the pasture-only diet compared with cows supplementary fed with concentrate. Many pasture factors affect DMI, including pregrazing pasture mass and pasture allowance. Milk production of high producing grazing dairy cows in early lactation increases linearly as the amount of concentrate increases to 10 kg DM/day with a milk response of 1 kg milk/kg concentrate. In late lactation, increases are with a lower milk response per kilogram of supplemented concentrate. With the amount of concentrate supplementation, milk fat and protein yield increase while milk fat percentage decreases. Supplementation with rumen undegradable protein (RUP) is important for meeting requirements of grazing dairy cows, because the pasture has high ruminal crude protein (CP) degradability. Corn silage supplementation to grazing cows may increase milk production if pasture offered is restricted, but if pasture is offered ad libitum milk production does not change or can decrease. Supplementation of ruminally inert fat could have positive effect on milk production with concentrate supplemented at a lower rate.
C3  - International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia
T1  - Supplementary Feeding of Grazing Dairy Cows
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_5543
ER  - 

@conference{
author = "Stojanović, B and Grubić, Goran and Djordjević, Nenad and Božičković, Aleksa and Ivetić, A",
year = "2014",
abstract = "The objective of this paper was to consider the effect of supplementary feeding of grazing dairy cows on dry matter intake (DMI), milk production and milk composition. Accurate estimations of total DMI and pasture DMI are important to the management of dairy grazing systems. The intakes of dry matter (DM) and net energy-NEL are lower on the pasture-only diet compared with cows supplementary fed with concentrate. Many pasture factors affect DMI, including pregrazing pasture mass and pasture allowance. Milk production of high producing grazing dairy cows in early lactation increases linearly as the amount of concentrate increases to 10 kg DM/day with a milk response of 1 kg milk/kg concentrate. In late lactation, increases are with a lower milk response per kilogram of supplemented concentrate. With the amount of concentrate supplementation, milk fat and protein yield increase while milk fat percentage decreases. Supplementation with rumen undegradable protein (RUP) is important for meeting requirements of grazing dairy cows, because the pasture has high ruminal crude protein (CP) degradability. Corn silage supplementation to grazing cows may increase milk production if pasture offered is restricted, but if pasture is offered ad libitum milk production does not change or can decrease. Supplementation of ruminally inert fat could have positive effect on milk production with concentrate supplemented at a lower rate.",
journal = "International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia",
title = "Supplementary Feeding of Grazing Dairy Cows",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_5543"
}

Stojanović, B., Grubić, G., Djordjević, N., Božičković, A.,& Ivetić, A.. (2014). Supplementary Feeding of Grazing Dairy Cows. in International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia.
https://hdl.handle.net/21.15107/rcub_agrospace_5543

Stojanović B, Grubić G, Djordjević N, Božičković A, Ivetić A. Supplementary Feeding of Grazing Dairy Cows. in International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia. 2014;.
https://hdl.handle.net/21.15107/rcub_agrospace_5543 .

Stojanović, B, Grubić, Goran, Djordjević, Nenad, Božičković, Aleksa, Ivetić, A, "Supplementary Feeding of Grazing Dairy Cows" in International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia (2014),
https://hdl.handle.net/21.15107/rcub_agrospace_5543 .

TY  - JOUR
AU  - Djordjević, Nenad
AU  - Popović, Zoran
AU  - Beuković, Dejan
AU  - Beuković, Miloš
PY  - 2014
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3661
AB  - The paper gives review about effects of local climate and forestation to the leveret’s percentage, of brown hare population research in hunting grounds of Serbia. Performed research rely to measurement of dry eye lens (Lens crystaline), basis of which it can perform precise classification by age category of hunted hares. Practically, for planning degree of use brown hare, the most important are age category: up to one year, and over one year. The statistical analysis of data collected during several years and in various hunting grounds of Serbia, has not found significant influence factors of climate (temperature and precipitation) and the degree of forestation (as an indicator of the benefits of environment and natural resources, food). Based on the literature review, it can be concluded that the size and age structure of the population of brown hare have a big impact, in addition to examined, and anthropogenic factors.
AB  - U radu je dat pregled domaćih istraživanja uticaja klime i šumovitosti na procenat mladih u populaciji zeca u lovištima Srbije. Obavljena ispitivanja se baziraju na merenju osušenog očnog sočiva (Lens crystalina), na osnovu čega se može izvršiti precizno razvrstavanje ulovljenih životinja u starosne kategorije. Za praksu planiranja stepena korišćenja zeca najznačajnije su starosne kategorije do jedne i preko jedne godine. Pri statističkoj analizi podataka prikupljenih iz više godina i iz različitih lovišta Srbije nije utvrđen signifikantan uticaj faktora klime (temperature i padavina) i stepena pošumljenosti (kao pokazatelja pogodnosti životne sredine i prirodnih resursa hrane). To ukazuje da je uticaj dugih faktora i njihovo interakcijsko delovanje mnogo veće. Na osnovu pregleda literature može se zaključiti da na brojnost i starosnu strukturu populacije zeca veliki uticaj imaju, pored ispitivanih, pre svega antropogeni faktori.
PB  - Institut PKB Agroekonomik, Padinska skela
T2  - Zbornik naučnih radova Instituta PKB Agroekonomik
T1  - Climate impacts, the degree of forestation and natural resources of food to the age structure of brown hare
T1  - Uticaj klime, stepena pošumljenosti i prirodnih izvora hrane na starosnu strukturu zeca
EP  - 259
IS  - 1-4
SP  - 251
VL  - 20
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3661
ER  - 

@article{
author = "Djordjević, Nenad and Popović, Zoran and Beuković, Dejan and Beuković, Miloš",
year = "2014",
abstract = "The paper gives review about effects of local climate and forestation to the leveret’s percentage, of brown hare population research in hunting grounds of Serbia. Performed research rely to measurement of dry eye lens (Lens crystaline), basis of which it can perform precise classification by age category of hunted hares. Practically, for planning degree of use brown hare, the most important are age category: up to one year, and over one year. The statistical analysis of data collected during several years and in various hunting grounds of Serbia, has not found significant influence factors of climate (temperature and precipitation) and the degree of forestation (as an indicator of the benefits of environment and natural resources, food). Based on the literature review, it can be concluded that the size and age structure of the population of brown hare have a big impact, in addition to examined, and anthropogenic factors., U radu je dat pregled domaćih istraživanja uticaja klime i šumovitosti na procenat mladih u populaciji zeca u lovištima Srbije. Obavljena ispitivanja se baziraju na merenju osušenog očnog sočiva (Lens crystalina), na osnovu čega se može izvršiti precizno razvrstavanje ulovljenih životinja u starosne kategorije. Za praksu planiranja stepena korišćenja zeca najznačajnije su starosne kategorije do jedne i preko jedne godine. Pri statističkoj analizi podataka prikupljenih iz više godina i iz različitih lovišta Srbije nije utvrđen signifikantan uticaj faktora klime (temperature i padavina) i stepena pošumljenosti (kao pokazatelja pogodnosti životne sredine i prirodnih resursa hrane). To ukazuje da je uticaj dugih faktora i njihovo interakcijsko delovanje mnogo veće. Na osnovu pregleda literature može se zaključiti da na brojnost i starosnu strukturu populacije zeca veliki uticaj imaju, pored ispitivanih, pre svega antropogeni faktori.",
publisher = "Institut PKB Agroekonomik, Padinska skela",
journal = "Zbornik naučnih radova Instituta PKB Agroekonomik",
title = "Climate impacts, the degree of forestation and natural resources of food to the age structure of brown hare, Uticaj klime, stepena pošumljenosti i prirodnih izvora hrane na starosnu strukturu zeca",
pages = "259-251",
number = "1-4",
volume = "20",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3661"
}

Djordjević, N., Popović, Z., Beuković, D.,& Beuković, M.. (2014). Climate impacts, the degree of forestation and natural resources of food to the age structure of brown hare. in Zbornik naučnih radova Instituta PKB Agroekonomik
Institut PKB Agroekonomik, Padinska skela., 20(1-4), 251-259.
https://hdl.handle.net/21.15107/rcub_agrospace_3661

Djordjević N, Popović Z, Beuković D, Beuković M. Climate impacts, the degree of forestation and natural resources of food to the age structure of brown hare. in Zbornik naučnih radova Instituta PKB Agroekonomik. 2014;20(1-4):251-259.
https://hdl.handle.net/21.15107/rcub_agrospace_3661 .

Djordjević, Nenad, Popović, Zoran, Beuković, Dejan, Beuković, Miloš, "Climate impacts, the degree of forestation and natural resources of food to the age structure of brown hare" in Zbornik naučnih radova Instituta PKB Agroekonomik, 20, no. 1-4 (2014):251-259,
https://hdl.handle.net/21.15107/rcub_agrospace_3661 .

TY  - CONF
AU  - Memisi, N
AU  - Djordjević, Nenad
AU  - Konyves, T
PY  - 2014
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5537
AB  - In this paper the up to date methods and regulation of goat kids feeding as the new normatives and nutrient requirements are presented. In kids feeding remarkable attention has to be made on optimal needs concerning the accurate growth and progress. In order to make the best solution the updated normatives with large number of parameters have to be used.
Growing goat kids require energy, protein, vitamins and minerals for optimum growth. Determining quantities of these nutrients needed will make possible to determine how much of grain mix and hay should be used to support maintenance and growth. The nutrient requirements of growing goats show a different trend than those of mature animals.
The latest investigation results on protein level recommendation in kids feeding (NRC, 2007) have grown over 45%, while energy needs only infinitesimally more in regard to goat nutrient requirement needs considering the NRC recommendation from 1981. However, it must be remembered that energy requirements are based on minimal activity needed to secure feed and the actual requirement may very. Thus, the needs of energy for growing kids with a body mass of 20 kg is 5.69 MJ ME and 75.6 g in proteins. The first three days after birth are the most critical days in the life of a newborn kid. If the mother rejects the kids, colostrum of kids should be fed three times a day, a total of 2 to 3 pint per day. After three days, the kid diet is based on milk or milk replacer, which is given twice a day and does not exceed three liters per day. Feeding with milk or milk replacer may continue until 8-12 weeks or until the time the kids are weaned and able to consume 0.2 kg grain milk per day.
At weaning, for feeding the 30 days old kids we used a mixture concentrate for early suckling kids. By own nutrient compounds this grain mixtures must have better quality than concentrate mixtures used in goat kids feeding.
Provide a grain mix (kid starter) containing high levels of protein (16%) and high levels of fiber (11%) as well as good quality hay to encourage rumen development. After weaning up to 6 months, continue feeding with kid starter 0.2 to 0.4 kg/day and plenty of good quality forage and pasture. When the growing kids start to use large amounts of hay or green forage in feeding, they should be given a mixture of concentrate with something simpler composition. Do not feed silage and non-protein nitrogen at this age.
C3  - International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia
T1  - Nutrition Specificities of Goat Kids in Suckling Period
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_5537
ER  - 

@conference{
author = "Memisi, N and Djordjević, Nenad and Konyves, T",
year = "2014",
abstract = "In this paper the up to date methods and regulation of goat kids feeding as the new normatives and nutrient requirements are presented. In kids feeding remarkable attention has to be made on optimal needs concerning the accurate growth and progress. In order to make the best solution the updated normatives with large number of parameters have to be used.
Growing goat kids require energy, protein, vitamins and minerals for optimum growth. Determining quantities of these nutrients needed will make possible to determine how much of grain mix and hay should be used to support maintenance and growth. The nutrient requirements of growing goats show a different trend than those of mature animals.
The latest investigation results on protein level recommendation in kids feeding (NRC, 2007) have grown over 45%, while energy needs only infinitesimally more in regard to goat nutrient requirement needs considering the NRC recommendation from 1981. However, it must be remembered that energy requirements are based on minimal activity needed to secure feed and the actual requirement may very. Thus, the needs of energy for growing kids with a body mass of 20 kg is 5.69 MJ ME and 75.6 g in proteins. The first three days after birth are the most critical days in the life of a newborn kid. If the mother rejects the kids, colostrum of kids should be fed three times a day, a total of 2 to 3 pint per day. After three days, the kid diet is based on milk or milk replacer, which is given twice a day and does not exceed three liters per day. Feeding with milk or milk replacer may continue until 8-12 weeks or until the time the kids are weaned and able to consume 0.2 kg grain milk per day.
At weaning, for feeding the 30 days old kids we used a mixture concentrate for early suckling kids. By own nutrient compounds this grain mixtures must have better quality than concentrate mixtures used in goat kids feeding.
Provide a grain mix (kid starter) containing high levels of protein (16%) and high levels of fiber (11%) as well as good quality hay to encourage rumen development. After weaning up to 6 months, continue feeding with kid starter 0.2 to 0.4 kg/day and plenty of good quality forage and pasture. When the growing kids start to use large amounts of hay or green forage in feeding, they should be given a mixture of concentrate with something simpler composition. Do not feed silage and non-protein nitrogen at this age.",
journal = "International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia",
title = "Nutrition Specificities of Goat Kids in Suckling Period",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_5537"
}

Memisi, N., Djordjević, N.,& Konyves, T.. (2014). Nutrition Specificities of Goat Kids in Suckling Period. in International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia.
https://hdl.handle.net/21.15107/rcub_agrospace_5537

Memisi N, Djordjević N, Konyves T. Nutrition Specificities of Goat Kids in Suckling Period. in International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia. 2014;.
https://hdl.handle.net/21.15107/rcub_agrospace_5537 .

Memisi, N, Djordjević, Nenad, Konyves, T, "Nutrition Specificities of Goat Kids in Suckling Period" in International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia (2014),
https://hdl.handle.net/21.15107/rcub_agrospace_5537 .

TY  - CONF
AU  - Dinić, B
AU  - Djordjević, Nenad
AU  - Blagojević, M
AU  - Marković, J
AU  - Terzić, D
AU  - Andjelković, S
PY  - 2014
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5531
AB  - Grape pomace (GP) of white varieties without stalks was ensiled by the method of single factor trial in the two treatments: in the first treatment, with the addition of lucerne biomass (L) of the last cut, which was harvested at the stage of forming pods with equal shares in the weight ratio and in the second with the addition of Benural S (B) in the amount of 1%. Chemical analyses were conducted on GP and L to determine the suitability of biomass for silage and to determine the chemical composition and nutritional value and the process of lactic acid fermentation. It has been found that the biomass of GP had 2 times higher concentration of water-soluble carbohydrates (WSC 140.5:69.4 gkg-1DM) relative to L, and a lower buffer capacity (BC) what makes it 10 times more favourable for ensiling (ratio WSC/BC 13.1 : 1.3). GP, as compared to L, had lower contents of CP, CF, and a lower nutritional value expressed in NEL and NEM units and a higher content of crude fat. Silage with the equal share of GP + L compared to silage with GP + B had a slightly lower CF and significantly less crude fat and ash, especially Ca. More favourable ratio Ca : P (2.93 : 1) was established in silage GP + L compared to 10.1:1 silage GP + B. Silages GP + L in the fermentation process were scored/rated one class higher according to the DLG and Zelter assessment methods, compared to the silages GP + B.
The aim of the study was to investigate the possibility of ensiling grape pomace with equal proportion of biomass of lucerne and added NPN substances and to determine the detailed chemical composition, nutritive value and silage quality on the basis of the process of lactic acid fermentation.
C3  - International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia
T1  - The Effect of Addition of Lucerne Biomass and NPN Substances on Quality of Grape Pomace Silage
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_5531
ER  - 

@conference{
author = "Dinić, B and Djordjević, Nenad and Blagojević, M and Marković, J and Terzić, D and Andjelković, S",
year = "2014",
abstract = "Grape pomace (GP) of white varieties without stalks was ensiled by the method of single factor trial in the two treatments: in the first treatment, with the addition of lucerne biomass (L) of the last cut, which was harvested at the stage of forming pods with equal shares in the weight ratio and in the second with the addition of Benural S (B) in the amount of 1%. Chemical analyses were conducted on GP and L to determine the suitability of biomass for silage and to determine the chemical composition and nutritional value and the process of lactic acid fermentation. It has been found that the biomass of GP had 2 times higher concentration of water-soluble carbohydrates (WSC 140.5:69.4 gkg-1DM) relative to L, and a lower buffer capacity (BC) what makes it 10 times more favourable for ensiling (ratio WSC/BC 13.1 : 1.3). GP, as compared to L, had lower contents of CP, CF, and a lower nutritional value expressed in NEL and NEM units and a higher content of crude fat. Silage with the equal share of GP + L compared to silage with GP + B had a slightly lower CF and significantly less crude fat and ash, especially Ca. More favourable ratio Ca : P (2.93 : 1) was established in silage GP + L compared to 10.1:1 silage GP + B. Silages GP + L in the fermentation process were scored/rated one class higher according to the DLG and Zelter assessment methods, compared to the silages GP + B.
The aim of the study was to investigate the possibility of ensiling grape pomace with equal proportion of biomass of lucerne and added NPN substances and to determine the detailed chemical composition, nutritive value and silage quality on the basis of the process of lactic acid fermentation.",
journal = "International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia",
title = "The Effect of Addition of Lucerne Biomass and NPN Substances on Quality of Grape Pomace Silage",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_5531"
}

Dinić, B., Djordjević, N., Blagojević, M., Marković, J., Terzić, D.,& Andjelković, S.. (2014). The Effect of Addition of Lucerne Biomass and NPN Substances on Quality of Grape Pomace Silage. in International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia.
https://hdl.handle.net/21.15107/rcub_agrospace_5531

Dinić B, Djordjević N, Blagojević M, Marković J, Terzić D, Andjelković S. The Effect of Addition of Lucerne Biomass and NPN Substances on Quality of Grape Pomace Silage. in International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia. 2014;.
https://hdl.handle.net/21.15107/rcub_agrospace_5531 .

Dinić, B, Djordjević, Nenad, Blagojević, M, Marković, J, Terzić, D, Andjelković, S, "The Effect of Addition of Lucerne Biomass and NPN Substances on Quality of Grape Pomace Silage" in International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia (2014),
https://hdl.handle.net/21.15107/rcub_agrospace_5531 .

TY  - JOUR
AU  - Božičković, Aleksa
AU  - Grubić, Goran
AU  - Djordjević, Nenad
AU  - Stojanović, Bojan
PY  - 2014
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3568
AB  - The investigation was done on 141 samples of one alfalfa cultivar, collected from the same location during the first three growth cycles: spring growth, the first and the second regrowth. Within each growth cycle, sampling was done during the whole growing period, commencing when plant height was below 150 mm and continuing until plants were bearing ripe seeds. On all collected samples the following cell wall characteristics were determined: neutral detergent fibre (NDF), acid detergent fibre (ADF), acid detergent lignin (ADL), neutral detergent insoluble crude protein (NDICP), acid detergent insoluble crude protein (ADICP). Cellulose and hemicellulose were detected on the base of the mentioned chemical parameters. Significantly lower (p lt 0.01) content of aNDF, ADF, ADL, ADICP and cellulose is found in the second regrowth, while there were no significant differences between the other two growth cycles. Except in NDICP and ADICP, the increase in all accompanying components of the cell wall was observed, and expressed in average daily changes. There was no consistent trend in NDICP and ADICP. During the spring growth from late bud to full-bloom stage the 'plateau' was observed. The plateau was represented as almost constant content of aNDF, ADF, ADL and cellulose. The correlations between all components of the cell wall were shown. The equation aNDF = 36.713 + 1.181 × ADF is recommended for conversion of ADF into aNDF in alfalfa.
AB  - Istraživanje je sprovedeno na 141 uzorku iste sorte lucerke, sakupljene na istoj lokaciji tokom prva tri ciklusa vegetacije: prolećni ciklus, drugi ciklus i treći ciklus. Tokom svakog ciklusa, uzorkovanjem je obuhvaćen ceo ciklus vegetacije, od momenta kada su biljke imale visinu manju od 150 mm sve do momenta kada su biljke imale zrelo seme. U svim sakupljenim uzorcima određeni su sledeći parametri ćelijskog zida: vlakna nerastvorljiva u neutralnom deterdžentu (aNDF), vlakna nerastvorljiva u kiselom deterdžentu (ADF), lignin (ADL), protein nerastvorljiv u neutralnom deterdžentu (NDICP), protein nerastvorljiv u kiselom deterdžentu (ADICP). Celuloza i hemiceluloza su određene na osnovu navedenih hemijskih parametara. Utvrđena je značajno manja (p lt 0.01) količina aNDF, ADF, ADL, ADICP i celuloze u trećem ciklusu vegetacije, dok između ostala dva ciklusa nisu utvrđene veće razlike. Izuzev kod NDICP i ADICP, utvrđen je porast svih praćenih komponenata ćelijskog zida i izražen u prosečnim dnevnim promenama. Kod NDICP i ADICP je zabeleženo odsustvo trenda. Tokom prolećnog ciklusa od faze punog pupoljenja do faze punog cvetanja je zabeležen 'plato', odnosno skoro konstantna količina aNDF, ADF, ADL i celuloze. Prikazane su korelacije između svih parametara ćelijskog zida. Jednačina aNDF = 36.713 + 1.181 × ADF je preporučena za konverziju ADF u aNDF u lucerki.
PB  - Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd
T2  - Journal of Agricultural Sciences (Belgrade)
T1  - Changes in alfalfa cell wall structure during vegetation
T1  - Promene u strukturi ćelijskog zida lucerke tokom vegetacije
EP  - 286
IS  - 3
SP  - 275
VL  - 59
DO  - 10.2298/jas1403275b
ER  - 

@article{
author = "Božičković, Aleksa and Grubić, Goran and Djordjević, Nenad and Stojanović, Bojan",
year = "2014",
abstract = "The investigation was done on 141 samples of one alfalfa cultivar, collected from the same location during the first three growth cycles: spring growth, the first and the second regrowth. Within each growth cycle, sampling was done during the whole growing period, commencing when plant height was below 150 mm and continuing until plants were bearing ripe seeds. On all collected samples the following cell wall characteristics were determined: neutral detergent fibre (NDF), acid detergent fibre (ADF), acid detergent lignin (ADL), neutral detergent insoluble crude protein (NDICP), acid detergent insoluble crude protein (ADICP). Cellulose and hemicellulose were detected on the base of the mentioned chemical parameters. Significantly lower (p lt 0.01) content of aNDF, ADF, ADL, ADICP and cellulose is found in the second regrowth, while there were no significant differences between the other two growth cycles. Except in NDICP and ADICP, the increase in all accompanying components of the cell wall was observed, and expressed in average daily changes. There was no consistent trend in NDICP and ADICP. During the spring growth from late bud to full-bloom stage the 'plateau' was observed. The plateau was represented as almost constant content of aNDF, ADF, ADL and cellulose. The correlations between all components of the cell wall were shown. The equation aNDF = 36.713 + 1.181 × ADF is recommended for conversion of ADF into aNDF in alfalfa., Istraživanje je sprovedeno na 141 uzorku iste sorte lucerke, sakupljene na istoj lokaciji tokom prva tri ciklusa vegetacije: prolećni ciklus, drugi ciklus i treći ciklus. Tokom svakog ciklusa, uzorkovanjem je obuhvaćen ceo ciklus vegetacije, od momenta kada su biljke imale visinu manju od 150 mm sve do momenta kada su biljke imale zrelo seme. U svim sakupljenim uzorcima određeni su sledeći parametri ćelijskog zida: vlakna nerastvorljiva u neutralnom deterdžentu (aNDF), vlakna nerastvorljiva u kiselom deterdžentu (ADF), lignin (ADL), protein nerastvorljiv u neutralnom deterdžentu (NDICP), protein nerastvorljiv u kiselom deterdžentu (ADICP). Celuloza i hemiceluloza su određene na osnovu navedenih hemijskih parametara. Utvrđena je značajno manja (p lt 0.01) količina aNDF, ADF, ADL, ADICP i celuloze u trećem ciklusu vegetacije, dok između ostala dva ciklusa nisu utvrđene veće razlike. Izuzev kod NDICP i ADICP, utvrđen je porast svih praćenih komponenata ćelijskog zida i izražen u prosečnim dnevnim promenama. Kod NDICP i ADICP je zabeleženo odsustvo trenda. Tokom prolećnog ciklusa od faze punog pupoljenja do faze punog cvetanja je zabeležen 'plato', odnosno skoro konstantna količina aNDF, ADF, ADL i celuloze. Prikazane su korelacije između svih parametara ćelijskog zida. Jednačina aNDF = 36.713 + 1.181 × ADF je preporučena za konverziju ADF u aNDF u lucerki.",
publisher = "Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd",
journal = "Journal of Agricultural Sciences (Belgrade)",
title = "Changes in alfalfa cell wall structure during vegetation, Promene u strukturi ćelijskog zida lucerke tokom vegetacije",
pages = "286-275",
number = "3",
volume = "59",
doi = "10.2298/jas1403275b"
}

Božičković, A., Grubić, G., Djordjević, N.,& Stojanović, B.. (2014). Changes in alfalfa cell wall structure during vegetation. in Journal of Agricultural Sciences (Belgrade)
Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd., 59(3), 275-286.
https://doi.org/10.2298/jas1403275b

Božičković A, Grubić G, Djordjević N, Stojanović B. Changes in alfalfa cell wall structure during vegetation. in Journal of Agricultural Sciences (Belgrade). 2014;59(3):275-286.
doi:10.2298/jas1403275b .

Božičković, Aleksa, Grubić, Goran, Djordjević, Nenad, Stojanović, Bojan, "Changes in alfalfa cell wall structure during vegetation" in Journal of Agricultural Sciences (Belgrade), 59, no. 3 (2014):275-286,
https://doi.org/10.2298/jas1403275b . .

TY  - JOUR
AU  - Dinić, Bora
AU  - Djordjević, Nenad
AU  - Blagojević, Milomir
AU  - Marković, Jordan
AU  - Terzić, Dragan
AU  - Djokić, Dragoslav
PY  - 2014
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3665
AB  - In this study, the impact of adding Benural S (commercial supplement on urea basis, in the amount of 1 and 2%) on the parameters of the chemical composition and quality of corn silage was examined. The experiment was planned according to the model of random plan, with three treatments (CS- CONTROL - control corn silage, CS+1% NPN - corn silage supplemented with 1% Benural-S, CS+2 % NPN - corn silage supplemented with 2 % Benural-S) and three replicates per treatment. Statistical analysis of the results showed a significant increase in the amount of dry matter, crude protein, ammonia and soluble nitrogen, NFE and ash, as well as the pH, when adding Benural S. The most significant changes were in the amount of crude proteins, which was increased by 37.5% when adding 1% S Benural, and 69.8 % when adding 2 % Benural S. Increase of pH and the share of ammonia nitrogen in the treatment with 2 % Benural-S led, according to the method by Weissbach, to diminishing of the quality of silage by one class. When balancing the ration for cows, the significantly increased amount of soluble proteins should be take into account, which are closely correlated with the degree of protein degradation.
AB  - U radu je ispitivan uticaj dodavanja Benurala S (komercijalnog dodatka na bazi uree, u količini 1 i 2%) na parametre hemijskog sastava i kvaliteta silaže kukuruza. Eksperiment je planiran po modelu slučajnog plana, sa tri tretmana (CS-CONTROL - kontrolna silaža kukuruza; CS+1% NPN - kukuruzna silaža sa dodatkom 1% Benurala-S; CS+2% NPN - kukuruzna silaža sa dodatkom 2% Benurala-S) i u tri ponavljanja po tretmanu. Statističkom obradom rezultata utvrđeno je signifikantno povećanje količine suve materije, sirovih proteina, amonijačnog i rastvorljivog azota, BEM- a i pepela, kao i pH vrednosti, pri dodavanju Benurala S. Najznačajnije su promene u količini sirovih proteina, koja je povećana za 37,5% pri dodavanju 1% Benurala S, odnosno za 69,8% pri dodavanju 2% Benurala S. Povećanje pH vrednosti i udela amonijačnog azota u tretmanu sa 2% Benurala S dovelo je prema Weissbach-ovoj metodi do smanjenja kvaliteta silaže za jednu klasu. Pri balansiranju obroka za krave treba voditi računa o značajno povećanoj količini rastvorljivih proteina, koji su u uskoj korelaciji sa stepenom razgradivosti proteina.
PB  - Institut PKB Agroekonomik, Padinska skela
T2  - Zbornik naučnih radova Instituta PKB Agroekonomik
T1  - Effect of supplementation of NPN substances on the process of lactic-acid fermentation and nutritive value of corn silage
T1  - Uticaj dodavanja NPN supstanci na proces mlečno-kiselinske fermentacije i hranljivu vrednost kukuruzne silaže
EP  - 173
IS  - 1-4
SP  - 165
VL  - 20
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3665
ER  - 

@article{
author = "Dinić, Bora and Djordjević, Nenad and Blagojević, Milomir and Marković, Jordan and Terzić, Dragan and Djokić, Dragoslav",
year = "2014",
abstract = "In this study, the impact of adding Benural S (commercial supplement on urea basis, in the amount of 1 and 2%) on the parameters of the chemical composition and quality of corn silage was examined. The experiment was planned according to the model of random plan, with three treatments (CS- CONTROL - control corn silage, CS+1% NPN - corn silage supplemented with 1% Benural-S, CS+2 % NPN - corn silage supplemented with 2 % Benural-S) and three replicates per treatment. Statistical analysis of the results showed a significant increase in the amount of dry matter, crude protein, ammonia and soluble nitrogen, NFE and ash, as well as the pH, when adding Benural S. The most significant changes were in the amount of crude proteins, which was increased by 37.5% when adding 1% S Benural, and 69.8 % when adding 2 % Benural S. Increase of pH and the share of ammonia nitrogen in the treatment with 2 % Benural-S led, according to the method by Weissbach, to diminishing of the quality of silage by one class. When balancing the ration for cows, the significantly increased amount of soluble proteins should be take into account, which are closely correlated with the degree of protein degradation., U radu je ispitivan uticaj dodavanja Benurala S (komercijalnog dodatka na bazi uree, u količini 1 i 2%) na parametre hemijskog sastava i kvaliteta silaže kukuruza. Eksperiment je planiran po modelu slučajnog plana, sa tri tretmana (CS-CONTROL - kontrolna silaža kukuruza; CS+1% NPN - kukuruzna silaža sa dodatkom 1% Benurala-S; CS+2% NPN - kukuruzna silaža sa dodatkom 2% Benurala-S) i u tri ponavljanja po tretmanu. Statističkom obradom rezultata utvrđeno je signifikantno povećanje količine suve materije, sirovih proteina, amonijačnog i rastvorljivog azota, BEM- a i pepela, kao i pH vrednosti, pri dodavanju Benurala S. Najznačajnije su promene u količini sirovih proteina, koja je povećana za 37,5% pri dodavanju 1% Benurala S, odnosno za 69,8% pri dodavanju 2% Benurala S. Povećanje pH vrednosti i udela amonijačnog azota u tretmanu sa 2% Benurala S dovelo je prema Weissbach-ovoj metodi do smanjenja kvaliteta silaže za jednu klasu. Pri balansiranju obroka za krave treba voditi računa o značajno povećanoj količini rastvorljivih proteina, koji su u uskoj korelaciji sa stepenom razgradivosti proteina.",
publisher = "Institut PKB Agroekonomik, Padinska skela",
journal = "Zbornik naučnih radova Instituta PKB Agroekonomik",
title = "Effect of supplementation of NPN substances on the process of lactic-acid fermentation and nutritive value of corn silage, Uticaj dodavanja NPN supstanci na proces mlečno-kiselinske fermentacije i hranljivu vrednost kukuruzne silaže",
pages = "173-165",
number = "1-4",
volume = "20",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3665"
}

Dinić, B., Djordjević, N., Blagojević, M., Marković, J., Terzić, D.,& Djokić, D.. (2014). Effect of supplementation of NPN substances on the process of lactic-acid fermentation and nutritive value of corn silage. in Zbornik naučnih radova Instituta PKB Agroekonomik
Institut PKB Agroekonomik, Padinska skela., 20(1-4), 165-173.
https://hdl.handle.net/21.15107/rcub_agrospace_3665

Dinić B, Djordjević N, Blagojević M, Marković J, Terzić D, Djokić D. Effect of supplementation of NPN substances on the process of lactic-acid fermentation and nutritive value of corn silage. in Zbornik naučnih radova Instituta PKB Agroekonomik. 2014;20(1-4):165-173.
https://hdl.handle.net/21.15107/rcub_agrospace_3665 .

Dinić, Bora, Djordjević, Nenad, Blagojević, Milomir, Marković, Jordan, Terzić, Dragan, Djokić, Dragoslav, "Effect of supplementation of NPN substances on the process of lactic-acid fermentation and nutritive value of corn silage" in Zbornik naučnih radova Instituta PKB Agroekonomik, 20, no. 1-4 (2014):165-173,
https://hdl.handle.net/21.15107/rcub_agrospace_3665 .

TY  - JOUR
AU  - Djordjević, Nenad
AU  - Grubić, Goran
AU  - Stojanović, Bojan
AU  - Božičković, Aleksa
PY  - 2014
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3664
AB  - Various methods of preparations and use of forage feeds for feeding animals in organic production systems were described in the paper. The base of this review is in the Act about control and certification in organic production and methods of organic production (2011). The main factors responsible for production of such feeds are: conversion (transition) period, methods of soil processing, production of organic fertilizers, use of certified seeds, use and list of allowed preparations for plant protection, feed conservation technology, transport and keeping of feeds, amounts of feed and feeding techniques. The herbivore feeding in organic production systems should be mostly relying on pasture, depending on the availability in various seasons, but also with some limitations which are different from conventional production. In periods without vegetation conserved forage is used - hay and silage. Silage production technology is basically similar to the one used in conventional production, and allows the use of inoculants as fermentation stimulants, and even use of some organic acids in order to rapidly obtain the appropriate pH values. The use of urea for feed supplementation (silage, concentrate) is absolutely forbidden. Considering that the Act about control and certification in organic production and methods of organic production (2011) defines minimal amount of 60% of forages in herbivore feeding, and in milk producing animals it is defined as 50% (in the first 3 months of lactation), even more care should be given to forages compared to conventional systems.
AB  - U radu su prikazani različiti postupci pripremanja voluminozne hrane za domaće životinje u skladu sa principima organske stočarske proizvodnje. Osnovu ovog pregleda i razmatranja čini Pravilnik o kontroli i sertifikaciji u organskoj proizvodnji i metodama organske proizvodnje (2011). Osnovni faktori odgovorni za proizvodnju takve hrane su: period konverzije (prelaska), način obrade zemljišta, priprema organskog đubriva, upotreba sertifikovanog semena, upotreba i lista sredstava za zaštitu bilja, tehnologija konzervisanja hraniva, transport i skladištenje hrane, količine hrane i tehnika ishrane... Ishrana biljojeda u organskoj stočarskoj proizvodnji u najvećoj mogućoj meri treba da se zasniva na ispaši, u zavisnosti od raspoloživosti pašnjaka u različito doba godine, ali i tu postoje određena ograničenja koja je razlikuju od konvencionalne ishrane. U periodu van vegetacije koristi se konzervisana hrana - seno i silaža. Tehnologija spremanja silaže je u osnovi slična kao i za konvencionalnu proizvodnju, i dozvoljava upotrebu inokulanata kao stimulatora fermentacije, pa čak i nekih organskih kiselina u cilju brzog postizanja odgovarajuće pH vrednosti. Upotreba uree kao sredstva za oplemenjivanje hrane (silaže, koncentrata…), apsolutno je zabranjena. S obzirom da je Pravilnikom o kontroli i sertifikaciji u organskoj proizvodnji i metodama organske proizvodnje (2011) definisan minimum učešća suve materije iz kabaste hrane u obrocima za biljojede od 60%, a u u slučaju životinja koje se koriste za proizvodnju mleka najmanje 50% (tokom prva tri meseca laktacije), još veća pažnja se mora pokloniti kvalitetu kabaste hrane.
PB  - Institut PKB Agroekonomik, Padinska skela
T2  - Zbornik naučnih radova Instituta PKB Agroekonomik
T1  - Forages in organic animal production systems
T1  - Proizvodnja voluminozne hrane po principima organskog stočarstva
EP  - 186
IS  - 1-4
SP  - 175
VL  - 20
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3664
ER  - 

@article{
author = "Djordjević, Nenad and Grubić, Goran and Stojanović, Bojan and Božičković, Aleksa",
year = "2014",
abstract = "Various methods of preparations and use of forage feeds for feeding animals in organic production systems were described in the paper. The base of this review is in the Act about control and certification in organic production and methods of organic production (2011). The main factors responsible for production of such feeds are: conversion (transition) period, methods of soil processing, production of organic fertilizers, use of certified seeds, use and list of allowed preparations for plant protection, feed conservation technology, transport and keeping of feeds, amounts of feed and feeding techniques. The herbivore feeding in organic production systems should be mostly relying on pasture, depending on the availability in various seasons, but also with some limitations which are different from conventional production. In periods without vegetation conserved forage is used - hay and silage. Silage production technology is basically similar to the one used in conventional production, and allows the use of inoculants as fermentation stimulants, and even use of some organic acids in order to rapidly obtain the appropriate pH values. The use of urea for feed supplementation (silage, concentrate) is absolutely forbidden. Considering that the Act about control and certification in organic production and methods of organic production (2011) defines minimal amount of 60% of forages in herbivore feeding, and in milk producing animals it is defined as 50% (in the first 3 months of lactation), even more care should be given to forages compared to conventional systems., U radu su prikazani različiti postupci pripremanja voluminozne hrane za domaće životinje u skladu sa principima organske stočarske proizvodnje. Osnovu ovog pregleda i razmatranja čini Pravilnik o kontroli i sertifikaciji u organskoj proizvodnji i metodama organske proizvodnje (2011). Osnovni faktori odgovorni za proizvodnju takve hrane su: period konverzije (prelaska), način obrade zemljišta, priprema organskog đubriva, upotreba sertifikovanog semena, upotreba i lista sredstava za zaštitu bilja, tehnologija konzervisanja hraniva, transport i skladištenje hrane, količine hrane i tehnika ishrane... Ishrana biljojeda u organskoj stočarskoj proizvodnji u najvećoj mogućoj meri treba da se zasniva na ispaši, u zavisnosti od raspoloživosti pašnjaka u različito doba godine, ali i tu postoje određena ograničenja koja je razlikuju od konvencionalne ishrane. U periodu van vegetacije koristi se konzervisana hrana - seno i silaža. Tehnologija spremanja silaže je u osnovi slična kao i za konvencionalnu proizvodnju, i dozvoljava upotrebu inokulanata kao stimulatora fermentacije, pa čak i nekih organskih kiselina u cilju brzog postizanja odgovarajuće pH vrednosti. Upotreba uree kao sredstva za oplemenjivanje hrane (silaže, koncentrata…), apsolutno je zabranjena. S obzirom da je Pravilnikom o kontroli i sertifikaciji u organskoj proizvodnji i metodama organske proizvodnje (2011) definisan minimum učešća suve materije iz kabaste hrane u obrocima za biljojede od 60%, a u u slučaju životinja koje se koriste za proizvodnju mleka najmanje 50% (tokom prva tri meseca laktacije), još veća pažnja se mora pokloniti kvalitetu kabaste hrane.",
publisher = "Institut PKB Agroekonomik, Padinska skela",
journal = "Zbornik naučnih radova Instituta PKB Agroekonomik",
title = "Forages in organic animal production systems, Proizvodnja voluminozne hrane po principima organskog stočarstva",
pages = "186-175",
number = "1-4",
volume = "20",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3664"
}

Djordjević, N., Grubić, G., Stojanović, B.,& Božičković, A.. (2014). Forages in organic animal production systems. in Zbornik naučnih radova Instituta PKB Agroekonomik
Institut PKB Agroekonomik, Padinska skela., 20(1-4), 175-186.
https://hdl.handle.net/21.15107/rcub_agrospace_3664

Djordjević N, Grubić G, Stojanović B, Božičković A. Forages in organic animal production systems. in Zbornik naučnih radova Instituta PKB Agroekonomik. 2014;20(1-4):175-186.
https://hdl.handle.net/21.15107/rcub_agrospace_3664 .

Djordjević, Nenad, Grubić, Goran, Stojanović, Bojan, Božičković, Aleksa, "Forages in organic animal production systems" in Zbornik naučnih radova Instituta PKB Agroekonomik, 20, no. 1-4 (2014):175-186,
https://hdl.handle.net/21.15107/rcub_agrospace_3664 .

TY  - JOUR
AU  - Beuković, Miloš
AU  - Beuković, Dejan
AU  - Popović, Zoran
AU  - Djordjević, Nenad
AU  - Djordjević, M.
PY  - 2013
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3249
AB  - Climatic factors, especially temperature and precipitations, greatly affect the dynamics of the hare number and population. Climatic factors directly affect the physiological and reproductive processes of both individuals and entire populations, or indirectly, through the availability of food, competition with other species, predators and other. The age structure of the hare population at the end of the period of reproduction is an important indicator of the population growth that is used for planning the level of explotation of the hare population (hunting). The rational use of the hare's population is one of the most important protection procedures and it should be well monitored and controlled by the hunting professionals. We used the average monthly temperature and the sum of monthly precipitations in the hare reproductive period (March-September) during ten years (2000 - 2009), together with the percent of young in the hare population, on the territory of Bačka, for multiple regression (stepwise) analysis. Results of the regression analysis show an association between the percentage of young hares and the influence of climatic factors. The average temperature and sum of precipitation in June, are the strongest predictor of the percent of young in the hare's population in Bačka. According to the coefficient of determination (R2=0.50) climatic parameters account for 50% of variance in the percentage of young hares in Bačka. The regression correlation coefficient of all factors was R=0.70, which is on the border line between medium and high correlation.
AB  - Klimatski faktori, pre svega temperatura i količina padavina, utiču u velikoj meri na brojnost i dinamiku populacije zeca. Oni utiču direktno na fiziološke i reprodukcione procese kako jedinke tako i cele populacije, ili indirektno, preko dostupnosti hrane, konkurencije sa drugim vrstama, predatora i dr. Starosna struktura zečije populacije na kraju perioda razmnožavanja je važan pokazatelj prirasta koji se koristi pri planiranju stepena korišćenja zeca u lovištima. Racionalno korišćenje populacija i mikropupulacija zeca je jedan od najzanačajnijih oblika zaštite zeca i trebao bi da bude u potpunosti pod kontrolom korisnika lovišta. Multiplom regresionom analizom prosečnih mesečnih temperaturnih vrednosti i sume mesečnih padavina za reprodukcioni period (mart-septembar) od 2000. do 2009. godine na teritoriji Bačke, izračunati su regresioni koeficijenti za prosečne temperaturne vrednosti, odnosno sume mesečnih padavina. Rezultate regresione analize povezanosti procenta mladih zečeva i uticaja klimatskih faktora na području Bačke ukazuju da su prosečne temperature i padavine u junu, najjači prediktor. Prema koeficijentu determinacije (R2=0,50) klimatski parametri objaš njavaju 50% varijanse procenta mladih zečeva na području Bačke. Regeresioni koeficijent korelacije svih faktora zajedno iznosio je R=0,70, što je na granici srednje i jake povezanosti.
PB  - Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd
T2  - Acta veterinaria
T1  - Impact of climatic factors to the percentage of young in the population of brown hare (Lepus Europaeus P.) in the Bačka district
T1  - Uticaj klimatskih faktora na procenat mladih u populaciji zeca (Lepus Europaeus P.) u Bačkoj
EP  - 122
IS  - 1
SP  - 111
VL  - 63
DO  - 10.2298/AVB1301111B
ER  - 

@article{
author = "Beuković, Miloš and Beuković, Dejan and Popović, Zoran and Djordjević, Nenad and Djordjević, M.",
year = "2013",
abstract = "Climatic factors, especially temperature and precipitations, greatly affect the dynamics of the hare number and population. Climatic factors directly affect the physiological and reproductive processes of both individuals and entire populations, or indirectly, through the availability of food, competition with other species, predators and other. The age structure of the hare population at the end of the period of reproduction is an important indicator of the population growth that is used for planning the level of explotation of the hare population (hunting). The rational use of the hare's population is one of the most important protection procedures and it should be well monitored and controlled by the hunting professionals. We used the average monthly temperature and the sum of monthly precipitations in the hare reproductive period (March-September) during ten years (2000 - 2009), together with the percent of young in the hare population, on the territory of Bačka, for multiple regression (stepwise) analysis. Results of the regression analysis show an association between the percentage of young hares and the influence of climatic factors. The average temperature and sum of precipitation in June, are the strongest predictor of the percent of young in the hare's population in Bačka. According to the coefficient of determination (R2=0.50) climatic parameters account for 50% of variance in the percentage of young hares in Bačka. The regression correlation coefficient of all factors was R=0.70, which is on the border line between medium and high correlation., Klimatski faktori, pre svega temperatura i količina padavina, utiču u velikoj meri na brojnost i dinamiku populacije zeca. Oni utiču direktno na fiziološke i reprodukcione procese kako jedinke tako i cele populacije, ili indirektno, preko dostupnosti hrane, konkurencije sa drugim vrstama, predatora i dr. Starosna struktura zečije populacije na kraju perioda razmnožavanja je važan pokazatelj prirasta koji se koristi pri planiranju stepena korišćenja zeca u lovištima. Racionalno korišćenje populacija i mikropupulacija zeca je jedan od najzanačajnijih oblika zaštite zeca i trebao bi da bude u potpunosti pod kontrolom korisnika lovišta. Multiplom regresionom analizom prosečnih mesečnih temperaturnih vrednosti i sume mesečnih padavina za reprodukcioni period (mart-septembar) od 2000. do 2009. godine na teritoriji Bačke, izračunati su regresioni koeficijenti za prosečne temperaturne vrednosti, odnosno sume mesečnih padavina. Rezultate regresione analize povezanosti procenta mladih zečeva i uticaja klimatskih faktora na području Bačke ukazuju da su prosečne temperature i padavine u junu, najjači prediktor. Prema koeficijentu determinacije (R2=0,50) klimatski parametri objaš njavaju 50% varijanse procenta mladih zečeva na području Bačke. Regeresioni koeficijent korelacije svih faktora zajedno iznosio je R=0,70, što je na granici srednje i jake povezanosti.",
publisher = "Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd",
journal = "Acta veterinaria",
title = "Impact of climatic factors to the percentage of young in the population of brown hare (Lepus Europaeus P.) in the Bačka district, Uticaj klimatskih faktora na procenat mladih u populaciji zeca (Lepus Europaeus P.) u Bačkoj",
pages = "122-111",
number = "1",
volume = "63",
doi = "10.2298/AVB1301111B"
}

Beuković, M., Beuković, D., Popović, Z., Djordjević, N.,& Djordjević, M.. (2013). Impact of climatic factors to the percentage of young in the population of brown hare (Lepus Europaeus P.) in the Bačka district. in Acta veterinaria
Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd., 63(1), 111-122.
https://doi.org/10.2298/AVB1301111B

Beuković M, Beuković D, Popović Z, Djordjević N, Djordjević M. Impact of climatic factors to the percentage of young in the population of brown hare (Lepus Europaeus P.) in the Bačka district. in Acta veterinaria. 2013;63(1):111-122.
doi:10.2298/AVB1301111B .

Beuković, Miloš, Beuković, Dejan, Popović, Zoran, Djordjević, Nenad, Djordjević, M., "Impact of climatic factors to the percentage of young in the population of brown hare (Lepus Europaeus P.) in the Bačka district" in Acta veterinaria, 63, no. 1 (2013):111-122,
https://doi.org/10.2298/AVB1301111B . .

TY  - JOUR
AU  - Ivetić, Aleksandra
AU  - Djordjević, Nenad
AU  - Radin, Dragoslava
AU  - Stojić, Petar
AU  - Grubić, Goran
AU  - Stojanović, Bojan
PY  - 2013
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3388
AB  - Aerobic stability is a term that indicates the length of the time that silage remains cool and does not spoil after it is exposed to air. Therefore, rapid removal of air from forage mass and prevention of air infiltration into the silage during storage and feed out are the important factors that determine the duration of the silage aerobic stability. The measurement of CO2 production, separately or in combination with other measurements such as temperature, pH, lactic acid and volatile fatty acids and microbial examination, can serve as a reliable laboratory method to determine the duration of silages aerobic stability in silages. This paper work has aim to point on the importance of determination the duration of aerobic stability of silages, because quality changes and losses in the case of aerobic degradation.
AB  - Aerobna stabilnost je termin kojim se definiše dužina vremena za koje silaža ostaje hladna i ne kvari se po izlaganju vazduhu. Zbog toga, brzo otklanjanje vazduha iz silaže tokom siliranja i smanjeno izlaganje vazduhu po otvaranju silosa su dva važna faktora koji određuju dužinu aerobne stabilnosti silirane stočne hrane. U proceni aerobnog kvarenja,merenje proizvodnje CO2, odvojeno ili u kombinaciji sa drugim parametrima kao što je temperatura silaže, pH vrednost, sadržaj mlečne i sirćetne kiseline i mikrobiološka analiza, mogu se koristiti kao pouzdani laboratorijski metod. Ovaj rad ima za cilj da ukaže na značaj procene vremena trajanja aerobne stabilnosti stočne hrane,zbog promena i gubitaka kvaliteta pri aerobnoj degradaciji.
PB  - Institut PKB Agroekonomik, Padinska skela
T2  - Zbornik naučnih radova Instituta PKB Agroekonomik
T1  - Importance of aerobic stability in silages
T1  - Značaj aerobne stabilnosti silirane stočne hrane
EP  - 60
IS  - 3-4
SP  - 47
VL  - 19
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3388
ER  - 

@article{
author = "Ivetić, Aleksandra and Djordjević, Nenad and Radin, Dragoslava and Stojić, Petar and Grubić, Goran and Stojanović, Bojan",
year = "2013",
abstract = "Aerobic stability is a term that indicates the length of the time that silage remains cool and does not spoil after it is exposed to air. Therefore, rapid removal of air from forage mass and prevention of air infiltration into the silage during storage and feed out are the important factors that determine the duration of the silage aerobic stability. The measurement of CO2 production, separately or in combination with other measurements such as temperature, pH, lactic acid and volatile fatty acids and microbial examination, can serve as a reliable laboratory method to determine the duration of silages aerobic stability in silages. This paper work has aim to point on the importance of determination the duration of aerobic stability of silages, because quality changes and losses in the case of aerobic degradation., Aerobna stabilnost je termin kojim se definiše dužina vremena za koje silaža ostaje hladna i ne kvari se po izlaganju vazduhu. Zbog toga, brzo otklanjanje vazduha iz silaže tokom siliranja i smanjeno izlaganje vazduhu po otvaranju silosa su dva važna faktora koji određuju dužinu aerobne stabilnosti silirane stočne hrane. U proceni aerobnog kvarenja,merenje proizvodnje CO2, odvojeno ili u kombinaciji sa drugim parametrima kao što je temperatura silaže, pH vrednost, sadržaj mlečne i sirćetne kiseline i mikrobiološka analiza, mogu se koristiti kao pouzdani laboratorijski metod. Ovaj rad ima za cilj da ukaže na značaj procene vremena trajanja aerobne stabilnosti stočne hrane,zbog promena i gubitaka kvaliteta pri aerobnoj degradaciji.",
publisher = "Institut PKB Agroekonomik, Padinska skela",
journal = "Zbornik naučnih radova Instituta PKB Agroekonomik",
title = "Importance of aerobic stability in silages, Značaj aerobne stabilnosti silirane stočne hrane",
pages = "60-47",
number = "3-4",
volume = "19",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3388"
}

Ivetić, A., Djordjević, N., Radin, D., Stojić, P., Grubić, G.,& Stojanović, B.. (2013). Importance of aerobic stability in silages. in Zbornik naučnih radova Instituta PKB Agroekonomik
Institut PKB Agroekonomik, Padinska skela., 19(3-4), 47-60.
https://hdl.handle.net/21.15107/rcub_agrospace_3388

Ivetić A, Djordjević N, Radin D, Stojić P, Grubić G, Stojanović B. Importance of aerobic stability in silages. in Zbornik naučnih radova Instituta PKB Agroekonomik. 2013;19(3-4):47-60.
https://hdl.handle.net/21.15107/rcub_agrospace_3388 .

Ivetić, Aleksandra, Djordjević, Nenad, Radin, Dragoslava, Stojić, Petar, Grubić, Goran, Stojanović, Bojan, "Importance of aerobic stability in silages" in Zbornik naučnih radova Instituta PKB Agroekonomik, 19, no. 3-4 (2013):47-60,
https://hdl.handle.net/21.15107/rcub_agrospace_3388 .

TY  - JOUR
AU  - Djordjević, Nenad
AU  - Popović, Zoran
AU  - Beuković, Dejan
AU  - Beuković, Miloš
AU  - Djordjević, Milutin
PY  - 2013
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3352
AB  - This paper presents a literature review of nutrition pheasant parent flocks in aviaries. Nutrition affects to the number, size, and biological quality of the eggs directly from the necessary nutrients that provide by diet, or indirectly through the body’s reserves, which are provided in the past. Comparing the recommendations of the various standards (AEC, INRA, NRC) and the value for the content of nutrients that are used in the experiments and the pheasant, the differences can be observed, especially in the protein content. Norms recent (NRC) calls on the similarity between the needs of pheasants and turkeys and recommend optimal balance of protein and energy (Mcal ME for each maximum 5.6% protein). By the way, in recent experiments, more attention is paid to micronutrients (trace elements, vitamins), physical form of concentrated feed and the etc. Because of these problems and shortcomings it is necessary to continue research, to the current recommendations for nutrient content corrected in order to reduce feeding costs and achieve better results of parent flocks.
AB  - U radu je dat pregled literaturnih podataka iz ishrane matičnog jata fazana u volijerama. Ishrana utiče na broj, veličinu i biološki kvalitet jaja direktno preko neophodnih hranljivih materija koje se obezbeđuju obrokom, ili indirektno preko telesnih rezervi koje su obezbeđene u ranijem periodu. Poređenjem preporuka iz različitih normativa (AEC, INRA, NRC) i vrednosti za sadržaj hranljivih materija koje se koriste u eksperimentima i na fazanerijama, mogu se uočiti razlike, pre svega u sadržaju proteina. Normativi novijeg datuma (NRC) pozivaju se na sličnost potreba fazana i ćuraka i preporučuju optimalan odnos energije i proteina (za svaku Mcal ME maksimalno 5,6% proteina). Osim toga, u eksperimentima novijeg datuma više pažnje se poklanja mikro-hranivima (mikroelementima, vitaminima), fizičkoj formi koncentrovane hrane i sl. Zbog navedenih problema i nedostataka neophodno je nastaviti istraživanja, kako bi se dosadašnje preporuke za sadržaj hranljivih materija korigovale, u cilju smanjenja troškova ishrane i postizanja boljih proizvodnih rezultata matičnog jata.
PB  - Institut PKB Agroekonomik, Padinska skela
T2  - Zbornik naučnih radova Instituta PKB Agroekonomik
T1  - Nutrition effect of pheasant parent flocks to production results
T1  - Uticaj ishrane matičnog jata fazana na proizvodne rezultate
EP  - 194
IS  - 3-4
SP  - 185
VL  - 19
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3352
ER  - 

@article{
author = "Djordjević, Nenad and Popović, Zoran and Beuković, Dejan and Beuković, Miloš and Djordjević, Milutin",
year = "2013",
abstract = "This paper presents a literature review of nutrition pheasant parent flocks in aviaries. Nutrition affects to the number, size, and biological quality of the eggs directly from the necessary nutrients that provide by diet, or indirectly through the body’s reserves, which are provided in the past. Comparing the recommendations of the various standards (AEC, INRA, NRC) and the value for the content of nutrients that are used in the experiments and the pheasant, the differences can be observed, especially in the protein content. Norms recent (NRC) calls on the similarity between the needs of pheasants and turkeys and recommend optimal balance of protein and energy (Mcal ME for each maximum 5.6% protein). By the way, in recent experiments, more attention is paid to micronutrients (trace elements, vitamins), physical form of concentrated feed and the etc. Because of these problems and shortcomings it is necessary to continue research, to the current recommendations for nutrient content corrected in order to reduce feeding costs and achieve better results of parent flocks., U radu je dat pregled literaturnih podataka iz ishrane matičnog jata fazana u volijerama. Ishrana utiče na broj, veličinu i biološki kvalitet jaja direktno preko neophodnih hranljivih materija koje se obezbeđuju obrokom, ili indirektno preko telesnih rezervi koje su obezbeđene u ranijem periodu. Poređenjem preporuka iz različitih normativa (AEC, INRA, NRC) i vrednosti za sadržaj hranljivih materija koje se koriste u eksperimentima i na fazanerijama, mogu se uočiti razlike, pre svega u sadržaju proteina. Normativi novijeg datuma (NRC) pozivaju se na sličnost potreba fazana i ćuraka i preporučuju optimalan odnos energije i proteina (za svaku Mcal ME maksimalno 5,6% proteina). Osim toga, u eksperimentima novijeg datuma više pažnje se poklanja mikro-hranivima (mikroelementima, vitaminima), fizičkoj formi koncentrovane hrane i sl. Zbog navedenih problema i nedostataka neophodno je nastaviti istraživanja, kako bi se dosadašnje preporuke za sadržaj hranljivih materija korigovale, u cilju smanjenja troškova ishrane i postizanja boljih proizvodnih rezultata matičnog jata.",
publisher = "Institut PKB Agroekonomik, Padinska skela",
journal = "Zbornik naučnih radova Instituta PKB Agroekonomik",
title = "Nutrition effect of pheasant parent flocks to production results, Uticaj ishrane matičnog jata fazana na proizvodne rezultate",
pages = "194-185",
number = "3-4",
volume = "19",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3352"
}

Djordjević, N., Popović, Z., Beuković, D., Beuković, M.,& Djordjević, M.. (2013). Nutrition effect of pheasant parent flocks to production results. in Zbornik naučnih radova Instituta PKB Agroekonomik
Institut PKB Agroekonomik, Padinska skela., 19(3-4), 185-194.
https://hdl.handle.net/21.15107/rcub_agrospace_3352

Djordjević N, Popović Z, Beuković D, Beuković M, Djordjević M. Nutrition effect of pheasant parent flocks to production results. in Zbornik naučnih radova Instituta PKB Agroekonomik. 2013;19(3-4):185-194.
https://hdl.handle.net/21.15107/rcub_agrospace_3352 .

Djordjević, Nenad, Popović, Zoran, Beuković, Dejan, Beuković, Miloš, Djordjević, Milutin, "Nutrition effect of pheasant parent flocks to production results" in Zbornik naučnih radova Instituta PKB Agroekonomik, 19, no. 3-4 (2013):185-194,
https://hdl.handle.net/21.15107/rcub_agrospace_3352 .