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猪人工受精过程对母猪生产力影响的研究 _食品科学与工程论文

发布时间:2015-04-01 来源:人大经济论坛
食品科学与工程论文范文 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种母猪的最佳营养营养策略………………………………………………….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 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
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