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首页> 美国卫生研究院文献>Animals : an Open Access Journal from MDPI >An Analysis of Culling Patterns during the Breeding Cycle and Lifetime Production from the Aspect of Culling Reasons for Gilts and Sows in Southwest China
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An Analysis of Culling Patterns during the Breeding Cycle and Lifetime Production from the Aspect of Culling Reasons for Gilts and Sows in Southwest China

机译：从西南母猪和母猪的剔除原因分析繁殖周期和终生生产中的剔除模式

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Simple SummaryUnplanned removal of gilts and sows shortens the longevity and decreases the production efficiency of commercial herds. A comparison between sow culling studies is problematic due to differences in genetics, housing conditions, and feeding and management among different countries. Analyzing and monitoring culling patterns in sows in a particular area could help improve domestic feeding and the managing level. Based on the large sample of production data, we found that disease, lameness, return to estrus, and anestrus beyond seven days sharply decreased lifetime production in sows. We suggest that producers take effective measures to reduce anestrus beyond nine months, reproductive system disease, return to estrus, and low or no milk production for gilts, weaned sows, gestating sows, and lactating sows, respectively. We also recommend producers pay more attention to disease, lameness, and return to estrus for sows at low parity.
机译：简单总结计划外去除母猪和母猪会缩短寿命，并降低商业猪群的生产效率。由于遗传，居住条件以及不同国家之间的饲养和管理方面的差异，母猪饲养研究之间的比较存在问题。分析和监测特定地区母猪的淘汰模式可以帮助提高家畜饲养和管理水平。根据大量的生产数据样本，我们发现疾病，la行，发情期和发情期超过7天后，母猪的终生产量急剧下降。我们建议生产者采取有效措施来减少超过9个月的发情期，生殖系统疾病，发情期回升，以及小母猪，断奶母猪，妊娠母猪和泌乳母猪产奶量低或没有。我们还建议生产者更加注意疾病，la行和低胎次母猪的回到发情期。

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