Investigation of the heritability of phenotypes of fertility and milk performance of Simmental cattle breed in Serbia
2009
Petrovic, M.M. | Sretenovic, Lj. | Aleksic, S. | Pantelic, V. | Novakovic, Z., Institute for Animal Husbandry, Belgrade - Zemun (Serbia) | Perisic, P., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Petrovic, M.D., Faculty of Agronomy, Cacak (Serbia)
Results of the effect of direct and indirect selection of quantitative traits of fertility and milk performance of the first calving cows of Simmental breed in Serbia are presented. Investigation of genetic parameters of heritability (additive genetic variance in total phenotytpic variability of quantitative traits) and analysis of milk traits was done in four breeding regions and several tenths of farms where 3980 daughters of 32 sires were housed and reared. Results of analysis were obtained by application of mathematical-statistical data analysis, using mixed models (Harvey, 1990).
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