Comparative evaluation of the dairy productivity of the black-and -white cows and Holstein cows in the terms of megafarms
- Authors: Morozova N.I1, Musaev F.A1, Podol S.R1, Ulkina M.A1
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- Issue: No 6 (2013)
- Pages: 52-53
- Section: Articles
- URL: https://journals.eco-vector.com/2073-4018/article/view/288540
- ID: 288540
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Abstract
In the pedigree plant «Avangard» in the Ryazan region milk productivity of the black-and-white cows and Holstein cows were compared. It was found that the yield of the Holstein cows in the rst and second lactation was in the range of 7071-7079 kg and was by 402-1140 kg or by 6-19 % higher than the yield of the black-and-white cows. The mass share of fat uctuated in the range of 3,9-4,18 % and that of protein - in the range 3,14-320 %.
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References
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