ANALYSIS OF GENETIC VARIANCE FOR MILK PRODUCTION AND IT COMPONENTS IN LOCAL GOAT FOR PROLACTIN RECEPTOR GENE

Abstract

The current study was conducted in Ruminant research station belong to the Minister of Agriculture Iraq by using 50 dies to estimate the breeding value and additive or dominant variance as well as the effect of gene substitution of PRLR gene depending on the information of (SNPs) which determined by (RFLP), Results showed three genotypes in the location that studded and breeding values were 3.544,0.818 and -1.91 MM, MN and NN Respectively, Dominance devotion -1.0207, 0.465 and -0.2988 Respectively, Genetic variance value (4.11943) while Additive variance value (3.812) and Dominance variance value (0.3082). Results showed that the average gene substitution from M to N was 2.776 and the average gene substitution at N to M was -2.726. Results referred to the importance at selection towards the M alle and against the N alles to increase the animal number that carrying the Mallele in herd which reflex positively on milk production.