TY  - CONF
AU  - Petrović, Milan P.
AU  - Mekić, Cvijan
AU  - Ružić, Dragana
AU  - Žujović, Miroslav
PY  - 2005
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/1000
PB  - Institut za stočarstvo, Beograd
C3  - Biotechnology in Animal Husbandry
T1  - Genetic principles relating to improvement of milk yield in sheep and goats
T1  - Genetski principi unapređenja mlečnosti ovaca i koza
EP  - 78
IS  - 5-6
SP  - 73
VL  - 21
DO  - 10.2298/BAH0506073P
ER  - 

@conference{
author = "Petrović, Milan P. and Mekić, Cvijan and Ružić, Dragana and Žujović, Miroslav",
year = "2005",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "Genetic principles relating to improvement of milk yield in sheep and goats, Genetski principi unapređenja mlečnosti ovaca i koza",
pages = "78-73",
number = "5-6",
volume = "21",
doi = "10.2298/BAH0506073P"
}

Petrović, M. P., Mekić, C., Ružić, D.,& Žujović, M.. (2005). Genetic principles relating to improvement of milk yield in sheep and goats. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 21(5-6), 73-78.
https://doi.org/10.2298/BAH0506073P

Petrović MP, Mekić C, Ružić D, Žujović M. Genetic principles relating to improvement of milk yield in sheep and goats. in Biotechnology in Animal Husbandry. 2005;21(5-6):73-78.
doi:10.2298/BAH0506073P .

Petrović, Milan P., Mekić, Cvijan, Ružić, Dragana, Žujović, Miroslav, "Genetic principles relating to improvement of milk yield in sheep and goats" in Biotechnology in Animal Husbandry, 21, no. 5-6 (2005):73-78,
https://doi.org/10.2298/BAH0506073P . .

TY  - JOUR
AU  - Petrović, Milan P.
AU  - Mekić, Cvijan
AU  - Ružić, Dragana
AU  - Žujović, Miroslav
PY  - 2005
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/993
AB  - Considering that total variability of milk traits in sheep within single population greatly depends on factors of genetic nature, objective of this paper was to investigate the trend of genetics parameters in populations raised in Pirot region, in order to create more efficient selection program in regard to milk production. Obtained and processed results of investigation have demonstrated that investigated traits occupy central heritability values. Degree of heritability for protein and fat had higher values in relation to other observed traits. Weak and negative genetic correlation is present between fat content and other traits whereas strong and positive correlation was determined for milk quantity and fat content and protein. Statistical analysis confirmed absence of significant differences between sheep of Pirot Pramenka breed and improved Pirot population. This research has also demonstrated that in selection of sheep in regard to milk traits and production special attention should be directed to importance of genetic parameters considering that with the increase of quantity of milk not only content of fat but also of protein are reduced, which can influence the economical efficiency on farm in system of payments for milk according to its quality.
AB  - U radu je izvršena analiza genetskih parametara važnijih osobina mlečnosti u populacijama pirotske pramenke i pirotske oplemenjene ovce. Dobijeni i obrađeni rezultati istraživanja su pokazali da ispitivane osobine imaju srednji nivo heritabiliteta, pri čemu su vrednosti stepena naslednosti za protein i mast veće u odnosu na ostala posmatrana svojstva, što se svakako mora imati u vidu prilikom kreiranja programa selekcije. Ustanovljena su pozitivna i negativna odstupanja u ispitivanim osobinama. Slaba i negativna korelacija prisutna je između sadržaja masti i drugih osobina dok je jaka i pozitivna povezanost utvrđena između količine mleka i količine masti. odnosno proteina. Ne postoje statistički značajne razlike između ovaca rase pirotska pramenka i pirotske oplemenjene populacije.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - Investigation of heritability and genetic correlations of milk traits in sheep
T1  - Ispitivanje heritabiliteta i genetskih korelacija osobina mlečnosti ovaca
EP  - 60
IS  - 3-4
SP  - 55
VL  - 21
DO  - 10.2298/BAH0504055P
ER  - 

@article{
author = "Petrović, Milan P. and Mekić, Cvijan and Ružić, Dragana and Žujović, Miroslav",
year = "2005",
abstract = "Considering that total variability of milk traits in sheep within single population greatly depends on factors of genetic nature, objective of this paper was to investigate the trend of genetics parameters in populations raised in Pirot region, in order to create more efficient selection program in regard to milk production. Obtained and processed results of investigation have demonstrated that investigated traits occupy central heritability values. Degree of heritability for protein and fat had higher values in relation to other observed traits. Weak and negative genetic correlation is present between fat content and other traits whereas strong and positive correlation was determined for milk quantity and fat content and protein. Statistical analysis confirmed absence of significant differences between sheep of Pirot Pramenka breed and improved Pirot population. This research has also demonstrated that in selection of sheep in regard to milk traits and production special attention should be directed to importance of genetic parameters considering that with the increase of quantity of milk not only content of fat but also of protein are reduced, which can influence the economical efficiency on farm in system of payments for milk according to its quality., U radu je izvršena analiza genetskih parametara važnijih osobina mlečnosti u populacijama pirotske pramenke i pirotske oplemenjene ovce. Dobijeni i obrađeni rezultati istraživanja su pokazali da ispitivane osobine imaju srednji nivo heritabiliteta, pri čemu su vrednosti stepena naslednosti za protein i mast veće u odnosu na ostala posmatrana svojstva, što se svakako mora imati u vidu prilikom kreiranja programa selekcije. Ustanovljena su pozitivna i negativna odstupanja u ispitivanim osobinama. Slaba i negativna korelacija prisutna je između sadržaja masti i drugih osobina dok je jaka i pozitivna povezanost utvrđena između količine mleka i količine masti. odnosno proteina. Ne postoje statistički značajne razlike između ovaca rase pirotska pramenka i pirotske oplemenjene populacije.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "Investigation of heritability and genetic correlations of milk traits in sheep, Ispitivanje heritabiliteta i genetskih korelacija osobina mlečnosti ovaca",
pages = "60-55",
number = "3-4",
volume = "21",
doi = "10.2298/BAH0504055P"
}

Petrović, M. P., Mekić, C., Ružić, D.,& Žujović, M.. (2005). Investigation of heritability and genetic correlations of milk traits in sheep. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 21(3-4), 55-60.
https://doi.org/10.2298/BAH0504055P

Petrović MP, Mekić C, Ružić D, Žujović M. Investigation of heritability and genetic correlations of milk traits in sheep. in Biotechnology in Animal Husbandry. 2005;21(3-4):55-60.
doi:10.2298/BAH0504055P .

Petrović, Milan P., Mekić, Cvijan, Ružić, Dragana, Žujović, Miroslav, "Investigation of heritability and genetic correlations of milk traits in sheep" in Biotechnology in Animal Husbandry, 21, no. 3-4 (2005):55-60,
https://doi.org/10.2298/BAH0504055P . .

TY  - JOUR
AU  - Petrović, Milan P.
AU  - Tomić, Zorica P.
AU  - Negovanović, Dragan
AU  - Ružić, Dragana
AU  - Pešić-Mikulec, Dragana
AU  - Skalicki, Zlatko
AU  - Perišić, Predrag
AU  - Tomić, Radosav V.
AU  - Kasalica, Anka
AU  - Niketić, Gordana B.
AU  - Miočinović, Dragica
AU  - Vuković, Dragan
AU  - Mijačević, Zora M.
AU  - Bulajić, Snežana
AU  - Božić, Tatjana
PY  - 2003
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/558
AB  - Based on results of performed investigations and analysis of existing conditions relating to technological process in production of kachkaval, we propose the following: To determine the causes of disturbed secretion in case of cows and sheep, investigate the mechanism of proteolytic activity and explain the origin (endogenous or exogenous); Goat milk should be delivered to dairies separately; control of temperature and relative humidity in departments for maturing and drying of cheese; introduction of whey and water separation; in that case, butter can be produced from separated cream. In order to successfully realize project it is also necessary to investigate location of the dairy in Dojkinci in relation to raw material status in different seasons of the year, and take certain measures for improvement of hygienic condition of milk throughout entire technological process: milking, delivering to dairies, storage, transport, etc.; obligatory introduction of basic routine milk analysis when delivered to dairies (volume, acidity, etc.); Introduction of technological log - diary for certain phases of production of kachkaval is also necessary. Finally, subsequent to standardization of entire technological process activities related to obtaining of brand name for such product with determined geographical origin are of great importance.
AB  - Stara planina spada u red najpoznatijih stočarskih regiona Srbije. Tokom istorije ovom planinom su prolazila nebrojena stada ovaca i gajilo se mnogo goveda. Zahvaljujući toj činjenici, koja je rezultat izvanrednih prirodnih uslova za bavljenje stočarstvom, javili su se i postali poznati širom sveta proizvodi kao: pirotski kačkavalj, pirotsko jagnje i pirotski ćilim. Posle vekovima uspešnog stočarstva Stare planine, poslednih decenija XX veka krenuo je ne zadrživ proces stagnacije, što je praćeno ne samo smanjenjem proizvodnje i redukcijom broja seoskog stanovništa već i odumiranjem pojedinih sela. Da paradoks bude veći tražnja za proizvodima sa ovog područja pre svega kačkavalja ne prestaje i biva sve veća. Promene u pogledu privrednog razvoja naše zemlje koje su u toku osvetlile su zaboravljenu Staru planinu i pirotski kačkavalj, jer se shvatilo da Srbija može ponuditi svetskom tržištu baš te, već poznate specijalitete sa prirodno ne zagađenih područja. Da bi se to i desilo bilo je neophodno započeti projekat koji će na naučnim osnovama omogućiti sagledavanje potencijala i pokazati pravi put za aktiviranje resursa. Ovim projektom se planiraju sledeće najvažnije aktivnosti: -Utvrđivanje mogućnosti proizvodnje stočne hrane i način ishrane ovaca i goveda i predlog mera za njihovo poboljšanje. -Ispitivanje proizvodnog potencijala populacija ovaca i goveda i predlog mera za unapređenje proizvodnje mleka. -Snimanje tradicionalne tehnologije proizvodnje kačkavalja i standardizacija svih procesa od prijema mleka do zrenja sira. -Na osnovu standardizacije proizvodnje kačkavalja i ispitivanja svih važnih osobina dobiće se robna marka i prepoznatljive karakteristike novog proizvoda koji će biti uveden u sistem za dobijanje oznake geografskog porekla.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - Study of the project 'optimization and standardization of native technology for Pirot kachkaval - hard cheese of protected brand and origin'
T1  - Optimizacija i standardizacija autohtone tehnologije pirotskog kačkavalja sa zaštitom oznake porekla
EP  - 74
IS  - 1-2
SP  - 69
VL  - 19
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_558
ER  - 

@article{
author = "Petrović, Milan P. and Tomić, Zorica P. and Negovanović, Dragan and Ružić, Dragana and Pešić-Mikulec, Dragana and Skalicki, Zlatko and Perišić, Predrag and Tomić, Radosav V. and Kasalica, Anka and Niketić, Gordana B. and Miočinović, Dragica and Vuković, Dragan and Mijačević, Zora M. and Bulajić, Snežana and Božić, Tatjana",
year = "2003",
abstract = "Based on results of performed investigations and analysis of existing conditions relating to technological process in production of kachkaval, we propose the following: To determine the causes of disturbed secretion in case of cows and sheep, investigate the mechanism of proteolytic activity and explain the origin (endogenous or exogenous); Goat milk should be delivered to dairies separately; control of temperature and relative humidity in departments for maturing and drying of cheese; introduction of whey and water separation; in that case, butter can be produced from separated cream. In order to successfully realize project it is also necessary to investigate location of the dairy in Dojkinci in relation to raw material status in different seasons of the year, and take certain measures for improvement of hygienic condition of milk throughout entire technological process: milking, delivering to dairies, storage, transport, etc.; obligatory introduction of basic routine milk analysis when delivered to dairies (volume, acidity, etc.); Introduction of technological log - diary for certain phases of production of kachkaval is also necessary. Finally, subsequent to standardization of entire technological process activities related to obtaining of brand name for such product with determined geographical origin are of great importance., Stara planina spada u red najpoznatijih stočarskih regiona Srbije. Tokom istorije ovom planinom su prolazila nebrojena stada ovaca i gajilo se mnogo goveda. Zahvaljujući toj činjenici, koja je rezultat izvanrednih prirodnih uslova za bavljenje stočarstvom, javili su se i postali poznati širom sveta proizvodi kao: pirotski kačkavalj, pirotsko jagnje i pirotski ćilim. Posle vekovima uspešnog stočarstva Stare planine, poslednih decenija XX veka krenuo je ne zadrživ proces stagnacije, što je praćeno ne samo smanjenjem proizvodnje i redukcijom broja seoskog stanovništa već i odumiranjem pojedinih sela. Da paradoks bude veći tražnja za proizvodima sa ovog područja pre svega kačkavalja ne prestaje i biva sve veća. Promene u pogledu privrednog razvoja naše zemlje koje su u toku osvetlile su zaboravljenu Staru planinu i pirotski kačkavalj, jer se shvatilo da Srbija može ponuditi svetskom tržištu baš te, već poznate specijalitete sa prirodno ne zagađenih područja. Da bi se to i desilo bilo je neophodno započeti projekat koji će na naučnim osnovama omogućiti sagledavanje potencijala i pokazati pravi put za aktiviranje resursa. Ovim projektom se planiraju sledeće najvažnije aktivnosti: -Utvrđivanje mogućnosti proizvodnje stočne hrane i način ishrane ovaca i goveda i predlog mera za njihovo poboljšanje. -Ispitivanje proizvodnog potencijala populacija ovaca i goveda i predlog mera za unapređenje proizvodnje mleka. -Snimanje tradicionalne tehnologije proizvodnje kačkavalja i standardizacija svih procesa od prijema mleka do zrenja sira. -Na osnovu standardizacije proizvodnje kačkavalja i ispitivanja svih važnih osobina dobiće se robna marka i prepoznatljive karakteristike novog proizvoda koji će biti uveden u sistem za dobijanje oznake geografskog porekla.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "Study of the project 'optimization and standardization of native technology for Pirot kachkaval - hard cheese of protected brand and origin', Optimizacija i standardizacija autohtone tehnologije pirotskog kačkavalja sa zaštitom oznake porekla",
pages = "74-69",
number = "1-2",
volume = "19",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_558"
}

Petrović, M. P., Tomić, Z. P., Negovanović, D., Ružić, D., Pešić-Mikulec, D., Skalicki, Z., Perišić, P., Tomić, R. V., Kasalica, A., Niketić, G. B., Miočinović, D., Vuković, D., Mijačević, Z. M., Bulajić, S.,& Božić, T.. (2003). Study of the project 'optimization and standardization of native technology for Pirot kachkaval - hard cheese of protected brand and origin'. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 19(1-2), 69-74.
https://hdl.handle.net/21.15107/rcub_agrospace_558

Petrović MP, Tomić ZP, Negovanović D, Ružić D, Pešić-Mikulec D, Skalicki Z, Perišić P, Tomić RV, Kasalica A, Niketić GB, Miočinović D, Vuković D, Mijačević ZM, Bulajić S, Božić T. Study of the project 'optimization and standardization of native technology for Pirot kachkaval - hard cheese of protected brand and origin'. in Biotechnology in Animal Husbandry. 2003;19(1-2):69-74.
https://hdl.handle.net/21.15107/rcub_agrospace_558 .

Petrović, Milan P., Tomić, Zorica P., Negovanović, Dragan, Ružić, Dragana, Pešić-Mikulec, Dragana, Skalicki, Zlatko, Perišić, Predrag, Tomić, Radosav V., Kasalica, Anka, Niketić, Gordana B., Miočinović, Dragica, Vuković, Dragan, Mijačević, Zora M., Bulajić, Snežana, Božić, Tatjana, "Study of the project 'optimization and standardization of native technology for Pirot kachkaval - hard cheese of protected brand and origin'" in Biotechnology in Animal Husbandry, 19, no. 1-2 (2003):69-74,
https://hdl.handle.net/21.15107/rcub_agrospace_558 .

TY  - JOUR
AU  - Petrović, Milan P.
AU  - Skalicki, Zlatko
AU  - Žujović, Miroslav
AU  - Mekić, Cvijan
AU  - Stojković, Mileta
AU  - Ružić, Dragana
PY  - 2000
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/254
AB  - The investigation was carried out on the sheep farm on the mountain Stara planina. The trial included two sheep genotypes: 1. Pirot pramenka sheep and 2. Improved Pirot sheep. In order to estimate necessary parameters the least squares method was used. The obtained results show that heritability of milk yield was 0.35 and 0.33, fat percent amounted to 0.49 and 0.44, while protein percent was 0.50 and 0.49 (in the 1st and 2nd genotype, respectively). Results on the genetic correlation between important parameters of milk showed that there were both, positive and negative correlations. Coefficient estimations of genetic correlations of certain traits varied from very weak to strong. Correlations between fat yield and milk yield were 0.87 and 0.88, but the coefficient between protein percent and fat yield was -0.01 and -0.04, in the 1st i.e. 2nd genotype, respectively. There are no significant differences between observed genotypes.
AB  - ispitivanje genetičkih parametara (heritabilnosti i genetičkih korelacija) osobina mlečnosti ovaca je bilo cilj rada. Ispitivanja su obavljena na jednoj farmi ovaca u regionu Stare planine, kod dva genotipa (pirotska pramenka i pirotska oplemenjena ovca). Heritabilnost varira u granicama srednjih vrednosti sa maksimumom kod sadržaja proteina. Ustanovljena je kako, pozitivna, tako i negativna genetička korelacija posmatranih osobina mlečnosti ovaca. Vrednosti koeficijenata se kreću od slabih do jakih, a nisu utvrđene značajne razlike između genotipova.
PB  - Savez poljoprivrednih inženjera i tehničara, Beograd
T2  - Journal of Scientific Agricultural Research
T1  - The analysis of genetic parameters for milk properties of sheep
T1  - Ispitivanje genetičkih parametara osobina mlečnosti ovaca
EP  - 97
IS  - 3
SP  - 93
VL  - 61
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_254
ER  - 

@article{
author = "Petrović, Milan P. and Skalicki, Zlatko and Žujović, Miroslav and Mekić, Cvijan and Stojković, Mileta and Ružić, Dragana",
year = "2000",
abstract = "The investigation was carried out on the sheep farm on the mountain Stara planina. The trial included two sheep genotypes: 1. Pirot pramenka sheep and 2. Improved Pirot sheep. In order to estimate necessary parameters the least squares method was used. The obtained results show that heritability of milk yield was 0.35 and 0.33, fat percent amounted to 0.49 and 0.44, while protein percent was 0.50 and 0.49 (in the 1st and 2nd genotype, respectively). Results on the genetic correlation between important parameters of milk showed that there were both, positive and negative correlations. Coefficient estimations of genetic correlations of certain traits varied from very weak to strong. Correlations between fat yield and milk yield were 0.87 and 0.88, but the coefficient between protein percent and fat yield was -0.01 and -0.04, in the 1st i.e. 2nd genotype, respectively. There are no significant differences between observed genotypes., ispitivanje genetičkih parametara (heritabilnosti i genetičkih korelacija) osobina mlečnosti ovaca je bilo cilj rada. Ispitivanja su obavljena na jednoj farmi ovaca u regionu Stare planine, kod dva genotipa (pirotska pramenka i pirotska oplemenjena ovca). Heritabilnost varira u granicama srednjih vrednosti sa maksimumom kod sadržaja proteina. Ustanovljena je kako, pozitivna, tako i negativna genetička korelacija posmatranih osobina mlečnosti ovaca. Vrednosti koeficijenata se kreću od slabih do jakih, a nisu utvrđene značajne razlike između genotipova.",
publisher = "Savez poljoprivrednih inženjera i tehničara, Beograd",
journal = "Journal of Scientific Agricultural Research",
title = "The analysis of genetic parameters for milk properties of sheep, Ispitivanje genetičkih parametara osobina mlečnosti ovaca",
pages = "97-93",
number = "3",
volume = "61",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_254"
}

Petrović, M. P., Skalicki, Z., Žujović, M., Mekić, C., Stojković, M.,& Ružić, D.. (2000). The analysis of genetic parameters for milk properties of sheep. in Journal of Scientific Agricultural Research
Savez poljoprivrednih inženjera i tehničara, Beograd., 61(3), 93-97.
https://hdl.handle.net/21.15107/rcub_agrospace_254

Petrović MP, Skalicki Z, Žujović M, Mekić C, Stojković M, Ružić D. The analysis of genetic parameters for milk properties of sheep. in Journal of Scientific Agricultural Research. 2000;61(3):93-97.
https://hdl.handle.net/21.15107/rcub_agrospace_254 .

Petrović, Milan P., Skalicki, Zlatko, Žujović, Miroslav, Mekić, Cvijan, Stojković, Mileta, Ružić, Dragana, "The analysis of genetic parameters for milk properties of sheep" in Journal of Scientific Agricultural Research, 61, no. 3 (2000):93-97,
https://hdl.handle.net/21.15107/rcub_agrospace_254 .