| 梁宙宁，刘艳芬.不同情期初配对母猪繁殖性能的影响[J].广东农业科学,2016,43(5):141-144 |
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不同情期初配对母猪繁殖性能的影响 |
| Effects of different estrum on sows’reproductive performance |
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| DOI：10.16768/j.issn.1004-874X.2016.05.027 |
| 中文关键词: 不同情期 初配 繁殖性能 初配条件 |
| 英文关键词: different estrum first mating reproductive performance condition of first mating |
| 基金项目: |
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| 摘要点击次数: 1666 |
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| 中文摘要: |
| 收集猪场近3 年头胎母猪的繁殖成绩（窝均总仔数、有效仔数、死仔数、木乃伊数、畸形胎数和弱仔数等），并对生产数据进行方差分析，研究不同情期初配对头胎母猪繁殖性能的影响。结果表明，与第二情期初配的母猪相比，第三、四情期初配的母猪窝均总仔数差异不显著，窝均有效仔猪数显著增加，初生仔猪有效率显著提高，窝均死仔数差异不显著，窝均木乃伊数显著减少，窝均弱仔数差异不显著。因此，适当延后
初配情期，提高初配条件，可提高窝均有效仔数，降低窝均木乃伊数，进而提高母猪的繁殖效力。 |
| 英文摘要: |
| Primiparous sows’ reproductive performance in three years including the litter size， number born alive，death litter size， number of mummies， number of fetal malformation and number of weak piglets were collected， and the effect of different estrum on sows’reproductive performance were analyzed. Compared to the sows of the primary mating in the second estrum， the differences of the average litter size were not obvious among the sows of the primary mating in the third and fourth estrum， the survival number was increased remarkably， primary mating breeding rate has a remarkable increase， less differences in the average dead number， obvious reduction of the mummy number and less differences in the weak piglets number. Consequently， with postponing entering of the estrum properly and increasing the conditions of the estrum， the survival piglets number can be improved，the average mummy number can be lowered，which improved the breeding rate of the sows. |
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