Mutations linked with the inherited anomalies in the Russian Aberdeen Angus sires

IOP Conference Series: Earth and Environmental Science(2021)

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Abstract
Abstract The purpose of research was to estimate of the gene load caused by the harmful mutations linked with the hereditary abnormalities of Aberdeen Angus cattle breed located in Russia. The object was the sires (n=3960) of five Russian populations which have been genotyped on AM, OS, DD and M1 genetic defects by previously created techniques. The genotyping showed the existence of AMC-, OSC-, DDC- and M1C-individuals among the investigated groups. The AMC-bulls have been revealed in four groups with the frequencies of 1.1-4.9%, the DDC- in all investigated livestock at 1.8-10.4%, the OSC- - in the two groups with 0.1 and 1.0% and the M1C- - in one population with 1.9%. We have also tracked the raising of AMC- and DDC-individuals in the later generations of two sire bull populations. In population No. 1 the AMC- and DDC-individuals frequencies have raised on 1.1 and 8.3%, respectively. In population No. 2 these differences were 2.2 and 2.7%. The monitoring of the genetic anomalies distribution in period 2013-2019 has shown the stabile percent of AMC, OSC, and M1-bulls, but for the DD genetic defects the growth tendency has been watched (from the absence in 2013 to 10.4% in 2019).
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anomalies
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