Background: This study was set up to evaluate the effect of ovarian tissue slow freezing on in vitro growth and pattern of maturation genes expression in mouse preantral follicles encapsulated within alginate hydrogel. Materials and Methods: Ovaries of 12-14 days old female NMRI mice were randomly allocated into control and slow freezing groups. In slow freezing group, ovaries were equilibrated...

In farm animals, both genetic and non-genetic factors affect reproductive traits. These can be categorized as intrinsic extrinsic. Extrinsic relate to the animal’s environment, while are related its genotype. Various traits studied concerning age, season, management, nutrition, body score, birth type. addition, variations of transforming growth factor-β (TGFβ) superfamily including BMPR-1B, BMP...

A new mutation in the bone morphogenetic protein 15 (BMP15) gene (FecX allele) causing increased prolificacy in heterozygous (R+) and sterility in homozygous ewes has been recently described in Rasa Aragonesa, a low-prolificacy Mediterranean breed. The current study determined, first, the effect of this polymorphism on natural and eCG-induced ovulation rate (OR) and the effect of eCG dose on re...