EVALUATION OF SPERMATOLOGICAL PARAMETERS USED TO PREDICT THE FERTILITY OF FROZEN BULL SEMEN

被引:0
作者
KJAESTAD, H [1 ]
ROPSTAD, E [1 ]
BERG, KA [1 ]
机构
[1] NORWEGIAN COLL VET MED,DEPT REPROD & FORENS MED,OSLO 1,NORWAY
关键词
MOTILITY; VELOCITY; ACROSOME INTEGRITY; NONRETURN RATE; AI;
D O I
暂无
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
Post-thaw motility, velocity and acrosome integrity of frozen semen were determined in 18 bulls with varying fertility (average non-return rates: 71.3 (+/- 2.8) - range: 65.2-75.7). Five semen straws were investigated from each bull. The average values for sperm motility (percentage motile spermatozoa), sperm velocity (graded from 0-3) and acrosome integrity (proportion of spermatozoa with intact acrosome) were 67.5%, 2.5 and 79.3%, respectively. Significant correlations were found between sperm motility and velocity, but not between sperm motility and acrosome integrity. Both sperm motility and velocity were significantly related to bull fertility. It was concluded that of the post-thaw semen characteristics investigated in this study these 2 parameters provided a reliable basis for prediction of bull fertility.
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页码:299 / 303
页数:5
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