Abstract
STUDY OF BETA-CASEIN GENE POLYMORPHISM AND ITS RELATIONSHIP WITH MILK COMPOSITION IN SIMMENTAL COWS
Highlights
The polymorphism of β-casein gene and its influence on the qualitative composition of milk of Simmental cows were studied
It was found that the frequency of the A2 allele was high (0.645)
Animals with A1A2 and A2A2 genotypes were more common in herds
Summary
The polymorphism of β-casein gene and its influence on the qualitative composition of milk of Simmental cows were studied. Отже актуальним питанням є проведення генотипування тварин молочних стад з метою отримання молочної сировини лише з бета-казеїном А2 [13, 6]. У молоці корів міститься більше 5 варіантів бета-казеїну. У корів різних порід частота алелів суттєво різниться. У тварин швіцької породи частота бажаного алелю А2 суттєво більша – 0,70–0,75, а бажаного генотипу А2А2 – близько 70% [10].
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