Milk production of 75-percent HF crossbred cows in comparison with their mothers and half-blood contemporaries
Języki publikacji
PL
Abstrakty
EN
The studies have been carried out on 202 black-white and red-white hybrids of various blood percentage. The results of the studies have enabled the initial evaluation of 75% HF hybrids. The black-white hybrids produced in the first lactation 649 kg of milk more than their mothers whereas the red-white hybrids proved to be better by 707 kg. Fat yield in both populations of the hybrids was higher compared to that in their mothers. 75% HF hybrids /R₁/ had higher milk yield than their F₁ contemporaries /150 kg in black-white and 602 kg in red-white/ genotype respectively.
Katedra Hodowli Bydła i Produkcji Mleka, Akademia Rolnicza we Wrocławiu, Wrocław
Bibliografia
[1] Gere T.: Międzyn. Czas. Rol., 3, 1983, 85-91.
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