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The influence of bulls on the quality of semen of holstein-friesian bulls
(Proceedings of the 12th International Symposium “Modern Trends in Livestock Production”, 9 – 11 October 2019, Belgrade, Serbia, 2019)
The aim of this research was to investigate the influence of the
bull i.e. genotype on the observed traits of semen quality and to determine whether
there are significant differences between bulls in terms of semen ...
HERITABILITY AND REPEATABILITY OF FERTILITY TRAITS OF HOLSTEIN-FRIESIAN BULLS MONITORED IN PROGENY TESTING
(Institute for Animal Husbandry, Belgrade-Zemun, 2015)
To test the variability of fertility traits of Holstein-Friesian bulls monitored in progeny test, reproduction data of 342 cows, daughters of 15 bulls were used. Cows have been in production in seven farms of Agricultural ...
THE EFFECT OF COLLECTION SEASONS ON THE SEMEN QUALITY OF HOLSTEIN-FRIESIAN BULLS
(Institute for Animal Husbandry, Belgrade-Zemun, 2017)
The study, which included 9 Holstein-Friesian bulls from the Livestock Center of the PKB Corporation, analyzed the impact of the ejaculate collection season on certain semen properties (ejaculate volume, sperm concentration, ...
Frequency of κ-casein and β-lactoglobulin genotypes in daughters of five simmental bull sires
(Institute for Animal Husbandry, Belgrade-Zemun, 2019)
The aim of this study was to determine the frequency of the κ-casein and β-lactoglobulin genotypes of the daughters of 5 Simmental bulls (sires) used for insemination in Serbia. Blood samples were taken from a total of 157 ...