id: 32152
Назва: Selection of cattle by production types
Автори: Pikula O.A.
Ключові слова: breeding, constitution, Ukrainian black-and-white dairy breed, milk, body build, production type.
Дата публікації: 2022-11-17 06:07:08
Останні зміни: 2022-11-17 06:07:08
Рік видання: 2022
Аннотація: It was established that in order to accelerate the selection of the Ukrainian Black-and-White dairy breed, it is advisable to conduct selection by production types, where for milk production enterprises preference should be given to the dairy type of cows, which will reduce milk production costs by 8.1% compared to cows of close to dairy type and by 22.9% compared to cows of dairy-meat type. In addition, cows of production types differ significantly in live weight and milk production. Thus, cattle of dairy type by milk yield for 305 days prevails over animals of close to dairy type by 974 kg and dairy-meat type by 2297 kg, by fat content by 0.04 and 0.15% respectively. The creation of control barns allows breeders to conduct targeted selection of cattle for the desired dairy type, where they are evaluated in the second or third month after calving on a point system.
URI: http://81.30.162.23/repository/getfile.php/32152.pdf
Тип виданя: Статті у зарубіжних наукових фахових виданнях (Copernicus та інші)
Видавництво: Modern Technology and Innovative Technologies. 2022. № 23 (1). P. 146-166.
Розташовується в колекціях :
Ким внесений: Адміністратор
Файл : 32152.pdf Розмір : 1442864 байт Формат : Adobe PDF Доступ : Загально доступний
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