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The effect of interaction of systematic factors on milk performance of Simmental cows in standard lactation / Efekat interakcije sistematskih faktora na mlečnost krava simentalske rase u standardnim laktacijama
(Institut za stočarstvo, Beograd, 2012)
The effect of interaction between the farm and calving season, as well as the farm and group of lactations on milk performance traits (milk yield, yield of milk fat, 4% fat corrected milk and milk fat content) was analyzed ...
The influence of age at first fertilization on some reproductive and performance traits of Simmental cows in first three lactations / Uticaj uzrasta pri prvoj oplodnji na neke reproduktivne i proizvodne osobine krava simentalske rase u prve tri laktacije
(Institut za stočarstvo, Beograd, 2002)
Certain reproductive and performance traits of Simmental cows, as well as the demonstration of those traits depending on the effect of age at first fertilization, were investigated. The investigation included 606 cows, ...