Pretraživanje
Prikaz rezultata 21-30 od 239
Investigation of the heritability of phenotypes of fertility and milk performance of Simmental cattle breed in Serbia / Ispitivanje naslednosti fenotipova plodnosti i mlečnosti simentalske rase goveda u Srbiji
(Institut za stočarstvo, Beograd, 2009)
Results of the effect of direct and indirect selection of quantitative traits of fertility and milk performance of first calving cows of Simmental breed in Serbia are presented. Investigation of genetic parameters of ...
Influence of yeast, probiotics and enzymes in rations on dairy cows performances during transition / Uticaj kvasaca, probiotika i enzima u obrocima na proizvodnost visokomlečnih krava u tranzicionom periodu
(Institut za stočarstvo, Beograd, 2008)
The main goal of this paper was to investigate the influence of some additives included into high yielding dairy cows rations to overcome the problems in early lactation. These substances directly affect the productive ...
Changes of crude protein content in Italian ryegrass influenced by spring nitrogen application / Promene sadržaja sirovih proteina italijanskog ljulja pod uticajem prolećne prihrane azotom
(Institut za stočarstvo, Beograd, 2009)
During a three-year field experiment with Italian ryegrass forage in the first production year, a dynamics of crude protein content under the influence of different levels of spring nitrogen application was examined. Crude ...
Effect of multi-phase feeding on growth, main carcass parts, and nitrogen content in faeces of broiler chickens / Uticaj multifazne ishrane brojlera na prirast, osnovne delove trupa i sadržaj azota u fecesu
(Institut za stočarstvo, Beograd, 2013)
The objective of this paper is to investigate the effect of multiphase feeding, i.e. the effect of different mash feeds with multi-phase protein reduction, on growth, main carcass parts and nitrogen content in faeces of ...
Resistance to controlled thermal stress and tolerance to sperm cryopreservation of two groups of boars / Otpornost na kontrolisani termalni stres i tolerancija na zamrzavanje spermatozoida dve grupe nerastova
(Institut za stočarstvo, Beograd, 2012)
The aim of this study was to find out is it possible to presume success of boars sperm cryopreservation, based on controlled exposure to heat stress and to investigate in vitro quality parameters of frozen/thawed sperm of ...
Colony strength in the spring inspection and its impact on the amount of foraged pollen at the time of red clover pollination / Snaga pčelinjih društva na prolećnom pregledu i njen uticaj na količinu sakupljanja polena u vreme oprašivanja crvene deteline
(Institut za stočarstvo, Beograd, 2013)
In this study, the impact of honey bee colony strength in the spring inspection on the colony strength at the time of pollination, the amount of foraged pollen and on the colony strength in autumn was observed. The honey ...
The justification for application and development trends of non-conventional rodenticides in protection of alfalfa from rodents / Opravdanost primene i pravci razvoja nekonvencionalnih rodenticida u zaštiti lucerke od glodara
(Institut za stočarstvo, Beograd, 2012)
This paper presents the harmful rodents in alfalfa in Serbia in the first decade of this century. We also review the products registered and assessed the efficiency of conventional (acute) rodenticides, anticoagulant and ...
The most common health disorders and welfare of dairy cows and calves / Najčešći zdravstveni poremećaji i dobrobit muznih krava i teladi
(Institut za stočarstvo, Beograd, 2014)
Three farms of dairy cows (A, B and C) were observed for health disorders of dairy cows and suckling calves. Farm A is farm with tied system of rearing, with 1100 cows, while farms B and C have 400 and 600 cows kept loose ...
The effect of raw soybeans in mixtures for laying hens on production performance and the relative weight of the pancreas / Efekat upotrebe sirove soje u smešama za ishranu kokoši nosilja na proizvodne rezultate i relativnu masu pankreasa
(Institut za stočarstvo, Beograd, 2014)
The study was conducted on Isa Brown hybrid hens at the age of 49-57 weeks. The effect of using different levels of share of raw soybean of two varieties in mixtures for feeding hens on egg production, body weight, food ...
Variation of traits of fatteners under the impact of various factors / Variranje osobina tovljenika pod uticajem različitih faktora
(Institut za stočarstvo, Beograd, 2014)
The aim of this study was to determine the effect of the sire breed, sire within sire breed, genotype of fatteners, gender of fatteners, gender within sire breed, season of birth of fatteners and mass of warm carcass side ...