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首页> 外文期刊>Tropical Animal Health and Production >Case-control study evaluating the sow's risk factors associated with stillbirth piglets in Midwestern in Brazil
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Case-control study evaluating the sow's risk factors associated with stillbirth piglets in Midwestern in Brazil

机译：病例对照研究评估了巴西中西部地区死胎仔猪的母猪危险因素

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摘要

Reproductive failure in swine herds is often difficult to diagnose and is important to swine production. The present study aims to identify the potential risk factors (infectiousoninfectious) for stillborn piglets in two commercial swine farms situated in midwestern region of Brazil. The potential risk factors were included in a multivariable logistic model, and the dependent variable was defined as the presence of at least one stillborn piglet in a given litter (yes or no). In the best fit model, two variables from the multivariable analysis, total litter size (p=0.01), and average birth weight (p=0.03) were significantly associated with the presence of stillborn piglets at the farms examined in this study. Porcine circovirus type 2 (PCV2) was detected in 29.1 % of the litters. Neither parvovirus (PPV) nor leptospirosis infections were identified in this study, suggesting that they have a minor impact on reproductive disease.
机译：猪群的生殖衰竭通常很难诊断，对猪的生产很重要。本研究旨在确定位于巴西中西部两个商业猪场中死胎仔猪的潜在危险因素（传染性/非传染性）。潜在的危险因素包括在多变量logistic模型中，因变量定义为给定垫料中存在至少一个死胎仔猪（是或否）。在最佳拟合模型中，来自多变量分析的两个变量，总窝数（p = 0.01）和平均出生体重（p = 0.03）与本研究中检查的农场死胎的存在显着相关。在29.1％的垫料中检测到2型猪圆环病毒。在这项研究中，没有发现细小病毒（PPV）和钩端螺旋体感染，这表明它们对生殖疾病的影响很小。

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