摘要：通过对A B两场人工授精均设对比试验组各项指标的影响因素研究实验证明1 有效精子数对母猪受胎率及产仔数有显著影响可以使受胎率提高3.7%左右，经t检验分析达到显著水平。人工授精的时间及次数对母猪繁殖性能影响也是显著的，对于每天2次发情鉴定持续发情一天的母猪来说2次输精比1次输精分娩率要高0.8%-2.6%。窝产仔数要提高0.2%-0.4%；对于持续发情2天以上的母猪来说输精2次以上比输精1次在分娩率上提高约3.1%窝产仔数提高0.78%，平均值差异显著。不同输精速度也影响这受胎率，实验证明在5-10min内输完精比1-3min内输完在受胎率产仔率要高。
关键词：人工受精；发情鉴定；输精量；输精子数；输精时间；输精次数；分娩率；窝产仔数；输精速度
Process of artificial insemination of pigs sow productivity study on the impact
Abstract: Through two artificial inseminations supposes contrast experiment group each target to A the B the influence factor research experiment to prove 1 effective sperm several pair of sow conception rates and bear young the number to have the remarkable influence to be possible to make the conception rate to enhance about 3.7%, achieves the remarkable level after the T-test analysis. The artificial insemination time and the number of times to the sow reproduction performance influence also are remarkable, regarding daily 2 times is in heat the appraisal to continue to be in heat a day-long sow 2 times to lose fine compared to 1 time loses the fine childbirth rate to want high 0.8%-2.6%.The nest bears young the number to have to enhance 0.2%-0.4%; Regarding continues to be in heat 2 days above sows to lose above the fine 2 times compared to lose fine 1 time enhances 3.1% nests in the childbirth rate to bear young the number to enhance 0.78% approximately, the mean value difference is remarkable. Loses the fine speed also to affect this conception rate differently, the experiment proved loses fine in 5-10min loses 1-3min in bears young in the conception rate must be higher than.
Key word: Artificial insemination: Is in heat the appraisal: Loses the fine quantity: Loses the sperm number: Loses the fine time: Loses the fine number of times: Childbirth rate: The nest bears young the number: Loses the fine speed
