E3S Web Conf.
Volume 175, 2020XIII International Scientific and Practical Conference “State and Prospects for the Development of Agribusiness – INTERAGROMASH 2020”
|Number of page(s)||6|
|Section||Livestock and Veterinary|
|Published online||29 June 2020|
Features of polymorphism of calpastatin and somatotropin genes in young sheep, obtained from crossing ewes of Kalmyk fat-rumped sheeps and dorper rams
North Caucasian Federal Scientific Agrarian Center, 49, Nikonova str., 356241, Mikhailovsk, Russia
2 Kalmyk Research Institute of Agriculture named after M.B. Narmaev, 5, Avenue Gorodovikova, 358001, Elista, Russia
3 North Caucasian State Acadeny, 36, Cherkessk, st., 369000, Stavropol, Russia
* Corresponding author: email@example.com
The article presents the study of polymorphism of the CAST and GH genes, which determine the features of the manifestation of the productive and biological characteristics of sheep with ½ Kalmyk + ½ Dorper blood system. Calpastatin gene polymorphism represented by alleles M and N, whose frequency was 0,65 and 0,35; genotypes MM, MN – 30 and 70% accordingly. The desired NN genotype has not been identified. A relatively uniform incidence of allele N (0,35) CAST gene and B (0,40) GH was established, what contributed to an almost equal distribution of allele frequencies М (0,65) and А (0,60) genes of calpastatin and somatotropin accordingly. The frequency of heterozygous genotypes occurrence by CAST gene composed 0,7. By GH gene the following distribution of genotype frequencies is observed. Frequency of occurrence homozygous АА and heterozygous AB genotypes was equal to and is 0,4, wherein the frequency of occurrence advised homozygous ВВ genotype was 0,2. Among the animals studied, sheep with a complex genotype are most common CASTMN GHAB (40 %). The amount of percent CASTMM GHAA and CASTMN GHAA is in 22,2%. 10% is for genotypes CASTMM GHBB and CASTMN GHBB.
© The Authors, published by EDP Sciences, 2020
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.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.