强制运动对种公牛精液品质的影响

The Effect of Forced Exercise on the Quality of Bull’s Semen

[目地]通过对种公牛强制运动观察精液理化指标的变化以及冻后指标的影响。[方法]选择无疾病正常采精种公牛4头,记录分析强制运动后20 d,40 d,60 d,80 d精液冷冻前后理化指标变化。[结果]种公牛强制运动后原精液密度增加2.98亿,精液活力提高0.17%,精液量增加0.6 mL,冻后废弃率降低21%,冻后活力提高0.08%,差异极显著(P<0.05)。[结论]种公牛强制运动再结合刷拭等保健措施能有效改善精液品质,增加生产数量,提供更多优秀遗传物质。

[Objective]The changes of physical-chemical indexes in semen and the influence of semen freezing waste rate after the forced exercise and brush of bull were observed.[Method]Four bulls with disease-free and normal sperm collection were selected.Then,the changes of physical-chemical indexes were recorded and analyzed before and after semen freezing at 20 d,40 d,60 d,and 80 d.[Result]After the forced exercise for bulls,the original semen density increased by 298 million,the semen vitality improved by 0.17%,the semen volume increased by 0.6 mL,the semen freezing waste rate decreased by 21%,and the post-freezing vitality raised by 0.08%.The difference of these indexes was very significant(P<0.05)between the before and after the forced exercise for bulls.[Conclusion]It can effectively improve the quality of semen,increase the number of productions,and provide more excellent genetic material through combining the forced exercise,brushing with other health measures for bull.