摘要 : Homospermic and heterospermic semen of 3 Friesian and 3 Murrah bulls was diluted in Tris and milk-egg yolk (10%)-glycerol (6%) diluents. The diluents were equally effective; post-thawing sperm motility averaged 50.48+-2.14 and 47.... 展开 Homospermic and heterospermic semen of 3 Friesian and 3 Murrah bulls was diluted in Tris and milk-egg yolk (10%)-glycerol (6%) diluents. The diluents were equally effective; post-thawing sperm motility averaged 50.48+-2.14 and 47.62+-2.31% respectively for Friesian semen, and the CR was 63.64 and 56.82%, and corresponding values for Murrah semen were 48.57+-2.21 and 46.91+-1.95% (motility) and 65.40 and 60.91% (CR). The CR to heterospermic AI in 42 cows and 196 buffaloes (71.79 and 69.93% respectively)was significantly higher than that to homospermic CR (56.91 and 60.67% for 223 and 454 females), though post-thawing sperm motility was not improved significantly. 收起