EFFECT OF BOVINE SERUM ADDED TO MATURATION MEDIUM ON IN VITRO-MATURATION AND SOME GENES EXPRESSIONS OF BUFFALO OOCYTES

Document Type : Original Article

Authors

1 Animal Production Research Institute, Agriculture Research Center, Egypt

2 Animal Production Research Institute, Agriculture Research Center, Egypt.

Abstract

The effect of supplementing TCM-199 culture medium with bovine sera on buffalo’s oocytes maturation in vitro and expression of  some related genes were studied. A total 1149 immature buffalo oocytes were randomly divided into three groups, G1( n=315) were cultured in medium with no serum supplement(control), G2( n=531) were cultured in medium supplemented with 10% Fetal calf serum (FCS) and G3(n= 303) were cultured in medium supplemented with 10% Estrous cow serum (ECS). After maturation, oocytes in each group were classified according to its shape and expansion into 2 subgroups, good (GO) and fair (FO) expanded oocytes. Expression of GAPDH, CX43, IGF II and β- Actin genes were studied in each subgroup. Results revealed that G3 and G2 showed high maturation rate (P

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