Претраживање
Приказ резултата 4521-4530 од 4902
Pruning influence on morphological characteristics of fruiting wood in filbert / Uticaj rezidbe na morfološke karakteristike rodnih grančica sorti leske
(Institut PKB Agroekonomik, Padinska skela, 2002)
The thriving of the filbert tree (Corylus sp) is provided for with the application of the agro technical measures, such as cultivation fertilization and irrigation, but full success in that production can only be achieved ...
Chelated forms of microelements as swine feed additives / Helatni oblici mikroelemenata kao dodatak hrani za svinje
(Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd, 2004)
Animals need microelements in small quantities which participate in almost all physiological and biochemical processes. Microelement resorption does not depend only on their content in feed, but also on the age of the ...
Effects of protein levels in lactation sow diet on protein content in internal organs / Efekat nivoa proteina u hrani krmača dojara na sadržaj proteina u unutrašnjim organima
(Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd, 2004)
The paper examined the effect of protein levels in the diet of lactating sows and parity on protein content in internal vital organs of sows following the end of lactation. Due to an insufficient intake of proteins from ...
New records of the tribe Bryobiini berlsese (Acari: Tetranychidae: Bryobiinae) from Serbia, with notes about associated predators (Acari: Phytoseiidae)
(Srpsko biološko društvo, Beograd, i dr., 2013)
This paper gives an overview of the present knowledge and some new faunistic and zoogeographic data of the insufficiently researched tribe Bryobiini in Serbia. In Serbia, this group of mites is represented by eight species, ...
Red blood count in dairy cows in periparturient period and in early lactation / Crvena krvna slika u mlečnih krava tokom peripartalnog i ranog laktacionog perioda
(Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd, 2011)
The paper presents results of red blood count studies in dairy cows in the periparturient period and early lactation, when cows are in a state of extreme stress due to intensive endocrine and metabolic changes. Investigations ...
Red blood cell counts in sows during lactation / Crvena krvna slika u krmača tokom laktacionog perioda
(Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd, 2010)
In the course of parturition and lactation, sows are susceptible to stress and make an effort to adapt to the newly-formed situation through different endocrine and metabolic mechanisms. In addition to endocrine, biochemical ...
Profitability of family farms directed at crop production / Profitabilnost porodičnih gazdinstava usmerenih na ratarsku proizvodnju
(Naučno društvo agrarnih ekonomista Balkana, Beograd, Institut za ekonomiku poljoprivrede, Beograd i Akademija ekonomskih nauka, Bukurešt, 2014)
The efficiency in crop production depends on, on the one hand, achieved yields and selling prices (production value) and, on the other hand, on the incurred production costs. These data suggest different economic indicators ...
Content and availability of copper in serbian smonitza soils / Sadržaj i pristupačnost bakra u smonicama Srbije
(Savez poljoprivrednih inženjera i tehničara, Beograd, 2002)
The soils samples of typical simonitza soils were collected from the plough layers at 10 locations in Serbia. The basic physical and chemical properties, as well as, the total and available Cu content in the soil were ...
Effect of heat stress on milk production in dairy cows / Uticaj toplotnog stresa na proizvodnju mleka kod mlečnih krava
(Institut za stočarstvo, Beograd, 2011)
Heat stress in dairy cows is caused by a combination of environmental factors (temperature, relative humidity, solar radiation and air movement). Continual genetic selectin for greater performance results to increased ...
Influence of high levels of inorganic selenium on activity of glutathione-peroxidase (GSH-Px) in blood plasma of chickens / Uticaj visokih nivoa neorganskog selena na aktivnost glutation-peroksidaze (GSH-Px) u krvnoj plazmi brojlera
(Institut za stočarstvo, Beograd, 2005)
The effect of high levels of inorganic selenium (NaiSeOs) was investigated on activity GSH-Px in blood plasma of chickens. For experiment, 140 chickens were used which were divided in 7 groups. The experiment lasted 42 ...