Results of the application of the technology of genetic improvement of Simmental cattle population in Serbia
2006
Petrovic, M.M., Institute for Animal Husbandry, Belgrade (Serbia) | Sretenovic, Lj., Institute for Animal Husbandry, Belgrade (Serbia) | Pantelic, V., Institute for Animal Husbandry, Belgrade (Serbia) | Aleksic, S., Institute for Animal Husbandry, Belgrade (Serbia) | Miscevic, B., Institute for Animal Husbandry, Belgrade (Serbia) | Bogdanovic, V., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Ostojic, D., Institute for Animal Husbandry, Belgrade (Serbia) | Petrovic, M., Faculty of Agronomy, Cacak (Serbia)
Results of production traits obtained from first calving cows and evalution of the breeding value of bull sires of Simmental breed in Serbia are presented in this paper. Data was analysed using the method of least squares and for evaluation of bull breeding value mixed model of random sire effect (BLUP method). Based on the obtained results it was established in statistical analysis that breeding region had highly significantly affected (P is less than 0.01) the deviation of production traits from the general average. Considerable deviation from the general average was caused by the year and season of calving (P is less than 0.05), and interaction of breeding region and calving season contributed to high variation in milk yield and milk fat (P is less than 0.01).
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