Effect of inter-breed embryo transfer on lamb growing performance and survival.

摘要: Contents The roles of recipient and embryo genotype in determining the growth performance survivability offspring based on specific behavioural differences were investigated using inter-breed transfer. This study was carried out three genotypes (Awassi, Redkaraman Tuj) two (Charollais Romanov) to obtain six possible combinations ewe lamb genotypes. Data collected from 71 ewes (10 with Charollais 15 Romanov embryos; 10 Tuj 12 embryos, Awassi lambs embryos); all received frozen-thawed embryos. had a significantly longer duration licking/grooming event (25.5 min, p < 0.05) than ewes. (p < 0.05) more likely require birth assistance compared lambs. (p < 0.01) active first 2 h after birth; breed no effect behaviour. There either or weaning weights recorded higher (5.5 ± 0.3 kg vs 3.9 ± 0.2 kg; p < 0.001) (29.4 ± 1.2 kg 22.4 ± 1.9 kg; At (95% 75%; survival rates, however, this not affected by breed. It concluded that an important factor transferred prolific (Romanov) while these traits for meat type (Charollais) embryos influenced dam