Comparative analysis of dairy cows' productivity depending on their origin and perspectives of further stock breeding in the herd

International Scientific Conference «AGRITECH-2019: Agribusiness, Environmental Engineering and Biotechnologies»

农业科学;生态环境科学;生物科学

Holodova, L.V.^1 ; Novoselova, K.S.^1 ; Ignatyeva, L.A.^2 ; Mikhalev, E.V.^1 ; Onegov, A.V.^1

Mari State University, Yoshkar-Ola, Russia^1

Agricultural Productive Cooperative Kolkhos Prigorodny, Yoshkar-Ola, Russia^2

关键词: Bioproducts;    Comparative analysis;    Dairy cow;    Dairy herds;    Farm economy;    High quality;    Mass fraction;    Milk yield;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/315/2/022089/pdf
DOI  :  10.1088/1755-1315/315/2/022089

来源: IOP

【 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.