E3S Web of Conf.
Volume 222, 2020International Scientific and Practical Conference “Development of the Agro-lndustrial Complex in the Context of Robotization and Digitalization of Production in Russia and Abroad” (DAIC 2020)
|Number of page(s)||8|
|Section||Efficient Production, Storage, Processing and Pre-sale Preparation of Agricultural Products. Creation of Safe and High-quality, Including Functional Food Products Based on Modern Genetic and Breeding Methods in Crop Production and Animal Husbandry|
|Published online||22 December 2020|
Main genetic defects of improving breeds in the population of Sychevsky cattle of the Smolensk region
Federal Research Center for Animal Husbandry named after Academy Member L.K. Ernst, the Russian Federation, Podolsk city district, vil. Dubrovitsy, 60
* Corresponding author: firstname.lastname@example.org
The Sychevskaya breed belongs to local breeds of the combined direction of productivity. The use of the world’s best gene pool of the Holstein and Simmental breeds allows to improve the productive qualities of the livestock, but at the same time it introduces a number of recessive genetic mutations into the gene pool of the Sychevskaya breed. 150 cows of the Vazuzsky type and 34 sires of the Sychevskaya breed were studied. The incidence of hidden carriers of thrombopathia was 1.4±0.009 % among cows and 5.9±0.04 % among breeding bulls. Animals in the cow group belonged to the Aromat 3433 line and other lines, and in the bull group - to the Toreador 3032 line. In the cows group, 12 carriers of subfertility and 6 carriers of cholesterol deficiency were identified, which is 8±0.022 % and 4±0.016 %, respectively. The linear affiliation of animals goes back to the lines of Redad 711620016730 (subfertility), Reflection Sovering 198998 and Klever 68 (HCD). The frequency of occurrence of undesirable alleles in the genotypes of Vazuzsky type cows according to the TMEM95, RASGRP2, and APOB genes was 0.040; 0.067; 0.020, and in the genotype of sires according to RASGRP2 – 0.030.
© 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.
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