On study the effect of different serum and hormonal supplements, when added to the maturation medium, on the in vitro maturation and subsequent fertilization and cleavage process of bovine oocytes. The oocyte maturation, ...

The influenceof maturation medium, serum and hormonal supplements, type of bovine oocyte, as well as the co-culture with granulosa cells for in vitro bovine oocytes maturation on the in vitro fertilization rate were ...

In the present work, the effects of oocyte maturation medium and protein supplementation on in vitro maturation process of immature bovine oocytes are described. Three different culture media, such as: TCM-199 medium, DME ...

In the present work, the effect of two selection methods of bovine frozen sperm on in vitro fertilization and cleavage rates of in vitro matured and fertilized bovine oocytes was evaluated. Two usual sperm selection systems ...

The problem of collapsing in the fighting bull breed was conceived from a scientific point of view beginning in the thirties when different experts (Castejón y Martínez de Arizala, Peralbo, González Garcia, etc. (8) ) tried ...

Horses of the english, the spanish•and the arabian thoroitg bred, had been studied conceming the haernoglobinic polyrnorphism. The geneic and genotype frecuencyes are expressed, having found significant differences between ...

Five herds of fighting caatle were examined about the inbreeding. Inbreeding coefficients from pedigrees traced-back as far as seven ancestral generations were calculated. Also was ,obtained the variation coefficient and ...

Three experiments were carried out to investigate whether cumulus cells, Bovine Follicular Fluid (BFF) and granulosa cells, when added as supplements to the maturation medium, support the in virto maturation of immature ...