The effect of SNP polymorphisms in growth hormone gene on weight and linear growth in crossbred Red Angus × Kalmyk heifers

DOI

10.2991/ispc-19.2019.73How to use a DOI?

Keywords

heifers, live weight, linear growth, genotype, allele, growth hormone gene

Abstract

The aim of our research was to study the effect of single-nucleotide polymorphisms in growth hormone gene on variability of weight and linear growth in crossbred Red Angus × Kalmyk heifers (F2). The experimental animals were reared in “Agrofirma Aduchi” Ltd. in Tselinniy region, Republic of Kalmykia. Heifers were divided into groups after genotyping in accordance with the allelic variant of the growth hormone gene: I group completed with GHLV heterozygous animals (n = 11 heads), II group – representatives of the homozygous GHVV gene (n = 9 heads). The inter-group differences in live weight were insignificant (P> 0.05) between the carriers of various genotype variants in growth hormone gene in the weaning age (8 months). The advantage in live weight between experimental animals increased to 23.9 kg (P <0.05) at the final stage of the control rearing (18 months). In this period, heterozygous youngsters (GHLV) differed in a large format of the exterior compared to homozygous contemporaries (GHVV). The significant superiority was established absolutely for all studied measurements. The maximum effect of heredity factor on the variability of live weight was detected at the age of 18 months – 24.81% (P <0.05). The calculation of the organized factor impact to the overall variability of linear growth in heifers of different allelic variants for the GH gene showed significance (P <0.05) at 18 months of age. Thus, the detection of single-nucleotide polymorphisms in GH gene can improve the accuracy of the selection in beef herds.

Copyright

© 2019, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Foat Kayumov
AU  - Vladimir Kosilov
AU  - Nikolay Gerasimov
AU  - Olga Bykova
PY  - 2019/06
DA  - 2019/06
TI  - The effect of SNP polymorphisms in growth hormone gene on weight and linear growth in crossbred Red Angus × Kalmyk heifers
BT  - Proceedings of the International Scientific and Practical Conference “Digital agriculture - development strategy” (ISPC 2019)
PB  - Atlantis Press
SP  - 325
EP  - 328
SN  - 1951-6851
UR  - https://doi.org/10.2991/ispc-19.2019.73
DO  - 10.2991/ispc-19.2019.73
ID  - Kayumov2019/06
ER  -