Open AccessThe association of polymorphic variants of growth hormone gene with slaughter traits and carcass composition in crossbred Red Angus × Kalmyk bull-calves
Author(s) -
Foat G Kayumov,
Н. П. Герасимов,
A. Emelyanenko,
Ruziya F Tretyakova,
R. D. Sangadzhiev,
Svetlana A Alimova
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/341/1/012065
Subject(s) - crossbreed , herd , biology , carcass weight , zoology , allele , reproduction , genotype , endocrinology , genetics , gene , body weight
The purpose of research was to study the association of polymorphic variants of growth hormone gene with development, slaughter traits and carcass composition in crossbred Red Angus × Kalmyk bull-calves. The experiment was carried out at LLC “Agrofirma Aduchi” in Republic of Kalmykia. The object of the study was crossbred Red Angus × Kalmyk (F2) bull-calves. The use of Red Angus sires with a high concentration of G allele in GH gene in the reproduction system of a herd made it possible to obtain second-generation crossbred progeny with a genotype distribution of 0.0625: 0.5: 0.4375, respectively, VV: LV: LL. The frequency of V allele reached 0.3125. The superiority of heterozygous individuals in live weight reached 18.0 kg by the age of 18 months (P>0.05). The maximum carcass weight was established in the group of heterozygous individuals, their superiority was 25.3 kg (P 0.05). The monitoring the genetic structure of the herd taken into account the allelic distribution in growth hormone gene will provide the development of meat productivity potential.