Placental traits, and plasma concentration and placental mRNA expression of IGF-I in Bafra sheep breed with different birth type

Insulin-like growth factors (IGF) promote follicle development, ovulation, and embryonic development affect placental fetal in many mammalian species. Therefore, this study aimed to determine the relationship between birth type, plasma concentration, mRNA expression of IGF-I Bafra ewes. A total 30 ewes, which have single (n=15) or twin gestation at least gave 2, been used as experimental animals. Before mating, blood samples were collected from jugular vena all Following lambing, live weight, sex lambs traits recorded. Plasma concentration was determined using a commercial ELISA kit. gene level has by real-time quantitative polymerase chain reaction. No difference found twin-bearing sheep terms weight various cotyledon characteristics study. In contrast, weights lower singleton than those (P<0.05). Similarly, medium number efficiency ewes with deliveries births Although type did not both IGF-I, that twins exhibited 0.908 times more births. The results showed breed but changed characteristics.