文章基本信息

标题：Comparative analysis of dairy cows’ productivity depending on their origin and perspectives of further stock breeding in the herd
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作者：L V Holodova ; K S Novoselova ; L A Ignatyeva 等
期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：315
期号：2
页码：1-6
DOI：10.1088/1755-1315/315/2/022089
出版社：IOP Publishing
摘要：Analysis of the dairy productivity of cows of various origins was made in the APC Kolkhoz Prigorodny. In this farm they breed cattle of black-motley breed. All the cattle stock in the farm are purebred and high-quality, the dairy efficiency of cows is at a fairly high level. In the herd there are cows of five genealogical lines: Vis Back Ideal, R. Sovereign, Mont-week Chieftain, S.T. Rocket, Pubst Governer. As research has shown, cows of the Pubst Governer line were the leaders by milk yield, and the cows of the S.T. Rocket line had the most fat-milk. The cows of the lines Vis Back Ideal and Mont-week Chieftain possessed the highest content of protein mass fraction. As a result of the research it was found out that among the considered population cows were lactated by daughters of 33 bulls. All bulls, whose bioproducts were used in the farm were purebred, had an elite-record class. Proceeding from the possibilities of the farm economy, a tribal nucleus in the dairy herd was identified, and a selection boundary of characteristics was established. Further measures of selection and breeding work with the herd have been developed.