Effects of Rederivation by Embryo Vitrification on Performance in a Rabbit Paternal Line

Embryo cryopreservation is a valuable tool for maintaining genetic variability and preserving breeds lines, allowing to assess the response selection enabling diffusion. This study aimed evaluate impact of rederivation by embryo vitrification transfer procedures on growth reproductive traits in paternal rabbit line selected average daily gain from weaning (28 days old) fattening (63 old). The rederived population was bred over two generations at same time as control this and, trait parameters (weights weaning, end period, gain) performance (kindling rate, litter size birth weaning) were compared with three filial generations. Moreover, fetal components assessed second generation ultrasonography laparoscopy. Differences postnatal (end weight observed assessed. However, growth, components, did not show significant differences. In conclusion, processes cause changes reconstituted populations that influence following generations, without rabbits.