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浅析猪人工受精过程对母猪生产力的影响
6000多字     12页

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{yt}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

前言

目录
中文摘要……………………………………………………………………………...1
英文摘要……………………………………………………………………………...2
目录…………………………………………………………………………………...3
1材料与方法…………………………………………………………………………1
1.1试验时间与地点………………………………………………………….........1
1.2试验猪的选择和饲养管理…………………………………………………….1
1.3实验器材……………………………………………………………………….2
1.3.1设备…………………………………………………………………………2
1.3.2器材…………………………………………………………………………2
1.3.3 一次性耗材…………………………………………………………………3
2实验操作步骤………………………………………………………………............3
2．1有效精子数与受胎效果……………………………………………………..3
2.2正确的输精时间和次数……………………………………………………….3
3小结与讨论…………………………………………………………………………5
3.1种母猪的{zj0}营养营养策略………………………………………………….5
3.1.1种母猪的营养需求…………………………………………………………5
3.1.2种公猪的营养需求…………………………………………………………6
3.3发情鉴定对正确输精时间和次数的影响…………………………………...6
3.2精液处理对受胎率的影响…………………………………………………….6
参考文献……………………………………………………………………………...9
致谢…………………………………………………………………………………..10

参考文献
［1］ 赵兴绪主编.兽医产科学.北京:中国农业出版社
［2］ 杨公社主编.猪生产学.北京:中国农业出版社
［3］ 张首全.猪人工授精.养猪
［4］ Levis（美）猪人工授精时正确的输精时间和输精次数.现代畜牧兽医
［5］ 韩俊文主编.养猪学.北京：中国农业出版社