Молочнохозяйственный вестник, №1 (29), I кв. 2018
160
РЕФЕРАТЫ
and milk productivity. The study was carried out among Holstein first calf heifers by
Integrated Agricultural Production Centre “Breeding farm named after Lenin” of Atninsky
district of the Republic of Tatarstan. DNA samples were separated from blood samples
of 261 cows for identification and genotyping according to kappa-casein and prolactin
genes by PCR-RFLP analysis method. When considering the gene polymorphism as
whole cow-heifers with a complex CSN3
AA
– PRL
AB
genotype showed prominent results
on milk yield (6648 kg), with a CSN3
AA
– PRL
AA
genotype – on percent fat content
(3.84%), with a CSN3
AB
– PRL
BB
genotype – on percent protein (3.51%), with a CSN3
BB
– PRL
AA
genotype – on milk fat (265.2 kg), with a CSN3
AA
– PRL
AB
genotype - on milk
protein content (210.6 kg). The study didn’t detect PRL
BB
– CSN3
BB
genotype complex.
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