Survival of Bull Sperm in Milk and Yolk Extenders with Added Catalase

Abstract

After 12 days of storage at 5 C the percentage of motile sperm in CUE containing 0, 1, 10, 100, and 200 μg of catalase per milliliter of extender was 28, 37, 44, 44, and 45, in CU-16 was 35, 43, 47, 52, and 50, in CU-16 plus chlorpromazine hydrochloride was 29, 35, 35, 41, and 43, and in 20% yolk-citrate was 24, 34, 38, 37, and 34, respectively. All levels of catalase improved sperm survival significantly (P