Abstract
The aim of the research was to analyze the influence of Simmental breed on the quality of cow's milk in farms of Ukraine, mainly in Kharkiv region. The research was performed on the basis of breeding records in agricultural farms with Simmental cows. According to the results of research, the fat content in the milk was higher in the crossbreed cows in comparison to purebred Simmentals cows S1/4+ H1/4+М1/2 (4.0%), and S1/4+H1/4+А1/2 (4.0%), S1/4+М3/4 (4.0%), S1/4+М1/4+А1/2 (3.9%), S1/4+А1/4+H1/2 (3.9%), S1/4+А1/4+М1/2 (3.9%), S1/4+А3/4 (3.9%). The highest yield of milk fat was observed in the following genetic groups: S1/4+H1/4+А1/2 (σ=58.0 k), S1/4+М1/4+А1/2 (σ=56.0 kg). The influence of Simmental crossbreeds has a significant effect (P>0.999) on the fat content in cow’s milk (η2 = 0.029) and on the yield of milk fat (η2 = 0.049) with a high degree of reliability (P> 0.999).
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