Ethological individuality as a sign of Ayrshire cattle breeding

Автор: Kudrin Aleksandr Grigorievich, Sedunova Tatyana Valerevna, Britvina Irina Vasilevna

Журнал: Молочнохозяйственный вестник @vestnik-molochnoe

Рубрика: Биологические и сельскохозяйственные науки

Статья в выпуске: 1 (21), 2016 года.

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Studies having been carried out on animals of Ayrshire breed show that indexes of food, motion and total activity selection can be successfully used as selection signs. Selection of cows on ethological individuality is accompanied by an increase of their milk production. Animals with increased food activity, compared to cows with a low one, have got the rise of milk yield per lactation by 686 kg. Ultra-active cows should be mentioned particularly, productivity of them opposite to infrapassive ones increases by 49%.

Cows, ayrshire breed, ethological activity indexes, milk yield

Короткий адрес: https://sciup.org/14998826

IDR: 14998826

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