Effect of Summer and Winter Period Feeding on Body Development of Simmental Cows

Abstract

The paper analyzed linear type traits and influence of summer and winter nutrition on body development of Simmental cattle. Test cows (paternal a half-sisters) were located in identical breedingconditions on the eastern slopes of Mount Kopaonik.Considering that expression of the genetic potential depends on the environment in which the organisms exist, the differences between summer and winter period feeding of Simmental cattle were not statistically significant (Tukey's test, p> 0.05) for the investigated properties of linear type traits and body development.

U radu su analizirane linearne ocene tipa i uticaj letnjeg i zimskog perioda ishrane na telesnu razvijenost krava simentalske rase. Ispitivane krave (polusestre po ocu) nalazile su se u identičnim uslovima gajenja na istočnim padinama planine Kopaonik. S obzirom da ispoljavanje genetskog potencijala zavisi i od uslova sredine u kojoj egzistiraju organizmi, razlike između letnjeg i zimskog perioda ishrane krava simentalske rase su statistički nesignifikantne (Tukey test,p> 0.05) za ispitivana svojstva linearne ocene tipa i telesne razvijenosti.