Rabbits selection based on phenotypic and productive indicators in the new breeding group formation

The purpose of the study is to evaluate the productivity and fixation of the desirable traits of outbred and inbred matings of rabbits when forming a breeding group to create a new breed using selection for target productive qualities and cytogenetic characteristics. The work was carried out in 2020 at the Federal State Budgetary Scientific Institution NIIPZK of the Moscow Region on the population of rabbits of the new breed being created. The breeding group included rabbits that participated in outbred and inbred (such as brother × sister, father × daughter, mother × son) matings, and the descendants of such matings, using selection for target productive qualities that meet the requirements of the new breed being created and cytogenetic characteristics (with using the micronucleus test of peripheral blood of animals). As a result of the work carried out, 66 rabbits were selected with an average fecundity of 8.8±0.3; output of young stock to jigging 7.3±0.3; live weight of young animals at the age of 45 days - 1.2±0.02; 77 days - 2.4±0.02; 90 days - 2.95±0.02; the frequency of occurrence of erythrocytes with micronuclei in the peripheral blood of males and females of the created breed is within 0.095-1.6 ‰, on average 0.72±0.05 ‰.Inbred mating contributed to the consolidation of desirable traits in generations. Animals of the breeding group are homogeneous in phenotype - the general color of the hairline is white; ears, nose, top of the tail, paws - gray; down is pure white. The young rabbits of the breeding group, consisting of the offspring of outbred and inbred matings, significantly exceeded the peers of the main herd in live weight at the age of 77 days (mainly due to the rabbits of the inbred breeding group) per 100 g (p function show_eabstract() { $('#eabstract1').hide(); $('#eabstract2').show(); $('#eabstract_expand').hide(); }