Use desirable alleles allows to raise the reproductive quality of the sows, in particular, amount alive piglets at birth (EPORTT), safety piglets (MUC4CC) meat quality pig (IGF-2QQ) that in turn allows to get the additional income at realization of the saplings

Possibility of increasing of meat productivity of ducklings of Temp cross after application of duck parental forms of German selection was studied in the conditions of the Republic of Belarus. In course of study there was revealed the dynamics of changes of live weight and feed expenses for live weight gain of linear and hybrid ducklings; as well as their meat qualities were determined. In course of studied there were used linear and hybrid ducklings obtained after crossbreeding of parental forms of Belarusian and German crosses of Peking breeds. There were formed 8 groups of one-day old ducklings. In the father's line the first (control) group was presented by pure bred line T1 of Temp cross; in the second group – by hybrid NT1 x T1, obtained after the direct crossing of male ducks of NT1 with female ducks of T1 lines; in the third group – by hybrid T1 x NT1, obtained after the backcrossing of male ducks of T1 with female ducks of NT1 lines; in the fourth group the combination NT1 was obtained by NT1 x NT1. In fifth group the maternal line was presented by pure line of T2 Temp cross (control); the sixth group was presented by hybrid T2N x T2 obtained after direct crossing of male ducks of T2N line with maternal ducks of T2 line; in the eighth group the combination T2N was obtained by T2N x T2N. Research results showed that application of Germal ducks in schemes of crossbreeding rendered the positive influence on live weight increasing of ducklings of father's line. In the carcasses of hybrid ducklings of all studied crossbreeds there was stated the decreasing number of skin with adipose layer and increasing number muscles including the pectoralis