THE SYSTEM OF SELECTION AND MATING OF PIGS OF MATERNAL FORM USING EVALUATION BY BLUP METHOD
The selection of pigs using evaluation by BLUP method is radically different from the selection on the basis of assessment and selection indexes as each animal receives evaluation for both the maternal and paternal indexes. In addition, its breeding value is calculated for leading traits based on the data of own productivity and productivity of its relatives. In a herd of pigs of Large White breed of TOV "SP "Zolotonosha" maternal BLUP-indexes were significantly higher than the average value of the index for all animals, starting with the level of selective pressure of 66-68%. With the value of the maternal index of 105 and more significant correlation with terminal index (r=0.17), phenotypic prolificacy (r=0.19), genotypic value of live weight of pigs at weaning (r=0.36) and average relationship - with genotypic value of prolificacy (r=0.58). For other traits correlation was low or absent. For other features the correlation was insignificant or absent.