| Issue |
E3S Web Conf.
Volume 262, 2021
1st International Scientific and Practical Conference “lnnovative Technologies in Environmental Engineering and Agroecosystems” (ITEEA 2021)
|
|
|---|---|---|
| Article Number | 02020 | |
| Number of page(s) | 3 | |
| Section | Basic and Applied Research in Zooengineering and Veterinary Medicine | |
| DOI | https://doi.org/10.1051/e3sconf/202126202020 | |
| Published online | 24 May 2021 | |
Frequency distribution of polymorphic variants of the beta-casein locus in Russian various breed cattle subpopulations
1 Federal State Funded Research Institution “Krasnodar Research Center for Animal Husbandry and Veterinary Medicine”, Pervomayskaya Str., 4, 350055 Krasnodar, Russia
2 Federal State Budgetary Educational Institution of Higher Education Southern Federal University, Sadovaya Str., 105/42 B., 344006 Rostov-on-Don, Russia
3 Kabardino-Balkarian State Agricultural University named after V. M. Kokov, Lenin Avenue, 1V, 360030 Nalchik, Russia
* Corresponding author: skniig@yandex.ru
Using the author’s test system, 2607 Holstein, Ayrshire and Jersey breeds were genotyped at CSN2 locus. It was determined that the frequency of preferred genotype A2A2 is in Holstein, Ayrshire and Jersey groups of animals - 0.21; 0.25 and 0.60 respectively. The frequency of A2 allele in Holstein breed is 0.48; in Ayrshire - 0.51; in Jersey - 0.78. Thus, the Russian subpopulations of Ayrshire, Jersey, and Holstein cattle subpopulations according to frequencies of A2A2 genotypes (CSN2 locus), the Jersey breed has the best indicators (0.60). Russian breeding enterprises selling semen production of Ayrshire and Holstein bulls should increase the share of breeders with CSN2 genotypes A2A2.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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