USING TRANSFERRIN MARKERS IN SHEEP SELECTION TO ANALYZE THEIR PERFORMANCE CAPACITIES
The article deals with the studies of transferrin (TF) loci used in the analysis of the Hissar-Kyrgyz sheep performance variability. It was found that with the lack of TFB and TFC genes in the sheep genotype there was observed certain gain of their body weight and the availability of TFE and TFD genes had positive influence on the live weight of siring rams. The same tendency was observed in ewes. There was not identified any connection between body weight of lambs at birth, at the age of one month and at weaning, with the alleles of transferrin locus. In the animals with a heterozygote set of transferrin alleles there were registered higher indices of traits selected as compared with animals with the homozygote type of transferrin alleles.