Effect of Vitamin C and E Supplementation and Combination of Both in Egg Yolk Tris Diluter on the Quality of Sapera Goat Spermatozoa in the 5 °C Cooling Process

This study was aimed to determine the effect of vitamin C, E supplementation and both combination in the egg yolk tris diluent on the quality of Sapera goat spermatozoa in 5˚C cooling process. The samples were fresh semen collected from Sapera goat. It was divided into four different treatment groups. The control treatment or P0 contained semen sample + egg yolk tris diluent, P1 contained semen sample + egg yolk tris diluent + vitamin C 0,9 mg/ml, P2 contained semen sample + egg yolk tris diluent + vitamin E 1 mg/ml, P3 contained semen sample + egg yolk tris diluent + vitamin C 0,9 mg/ml + vitamin E 1 mg/ ml. The least decrease of spermatozoa motility, viability and membrane integrity was found in P3, which was significantly different to P0 (p<0,05). However, P1 and P2 did not show significant difference in the results of motility and viability evaluation (p>0,05). It can be concluded that the combination of vitamin C and E supplementation can be an optimal antioxidants supplement in egg yolk tris diluent on the quality of Sapera goat spermatozoa in 5˚C cooling process.