Genotype of boars of different lines of Belarusian black-motley breed by gene-marker IGF-2 and its correlation with feeding and meat performance

Abstract

It is determined that most part of boars (80 %) are represented by AA genotype of gene-marker IGF-2 (intron 2), and the frequency of allele A - 0.87. Homozygous boars by B allele promote reducing the fattening period of the produced young animals by 7 days and increase in average daily gain by 25 g. Replacement young animals with fathers that had BB genotype is peculiar of moderate fat content (20.3-24.0 mm backfat thickness) and high meat content - 47.5 % (by unit Piglog-105).