Мilk productivity of goats of alpine and nubian breeds of different genotypes for αs1-casein and αs2-casein
https://doi.org/10.26897/2074-0840-2024-4-3-7
Abstract
The study analyzed the genetic structure of the Russian goat population of Alpine and Nubian goat breeds by loci CSN1S1 (alleles B1, B2, B3, B4, C) and CSN1S2 (alleles A and B). It was revealed that the highest frequency of occurrence in the CSN1S1 locus in the Alpine breed is represented by goats with the B1, B3 genotype, and in the Nubian – with the CC genotype, and in the CSN1S2 locus for both breeds – with the AA genotype. There were no significant differences between animals of different genotypes at the CSN1S1 locus in either the Alpine or Nubian breeds, at the same time, it was found that animals of the AA genotype at the CSN1S2 locus significantly surpass goats of other genotypes in terms of average casein content (for both breeds) and average protein content (in the Alpine breed). The preferred genotype for the selection of animals to increase the cheese suitability of milk and its hypoallergenic qualities is CSN1S1CC/CSN1S2AA.
About the Authors
М. I. SelionovaRussian Federation
Selionova Marina Ivanovna, Doctor of Biological Sciences, Professor, Vice-Rector for Science
tel: (499) 976-34-34
127550, Moscow, Timiryazevskaya str, 49
K. A. Belomestnov
Russian Federation
Belomestnov Konstantin Andreevich, PhD student
tel: (499) 976-34-34
355035, Stavropol, Zootekhnichesky Lane, 12
M. Yu. Gladkikh
Russian Federation
Gladkikh Marianna Yurievna, PhD in Agricultural Science, Associate Professor of the Department of Animal Breeding, Genetics and Biotechnology
tel: (499) 976-34-34
127550, Moscow, Timiryazevskaya str, 49
M. A. Glushchenko
Russian Federation
Glushchenko Marina Anatolyevna, PhD in Biological Sciences, Associate Professor of the Department of Animal Breeding, Genetics and Biotechnology
tel: (499) 976-34-34
127550, Moscow, Timiryazevskaya str, 49
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Review
For citations:
Selionova М.I., Belomestnov K.A., Gladkikh M.Yu., Glushchenko M.A. Мilk productivity of goats of alpine and nubian breeds of different genotypes for αs1-casein and αs2-casein. Sheep, goats, wool business. 2024;(4):3-7. (In Russ.) https://doi.org/10.26897/2074-0840-2024-4-3-7