Effect of Vitamin C Levels in Chicken Egg Yolk Extender on Sperm Motility in Chilled Stored Bull Semen

Abstract

An experiment was conducted to evaluate the effect of vitamin C levels in chicken egg yolk extender on spermmotility in chilled stored bull semen. Semen was collected from the bull with the aid of artificial vagina and three (3) types of extenders were prepared using chicken egg yolk with each extender divided into three aliquots having 0, 3 and 6mg/ml Vitamin C levels. Bottles containing the diluted semen using the chicken egg yolk extenders were stored in a refrigerator at 5⁰C over a period of 3 days and monitored or evaluated at 0, 24, 48 and 72 hours. The result showed that there was a general decline in motility of semen as storage time increases, although samples with 6 mg/ml Vitamin C levels had better results. It can be concluded that adding Vitamin C in chicken egg yolk extender maintained motility of chilled semen even at 72 hours of preservation at 5⁰C.