Estimation of variance components for postpartum dysgalactia syndrome in sows.
Estimation of variance components for postpartum dysgalactia syndrome in sows.
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DOI：
10.1111/j.1439-0388.2011.00969.x
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发表时间：
2012-04
期刊：
影响因子：
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通讯作者：
R. Preissler;D. Hinrichs;K. Reiners;H. Looft;N. Kemper
中科院分区：
文献类型：
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作者：
R. Preissler;D. Hinrichs;K. Reiners;H. Looft;N. Kemper
产后停乳综合征是母猪产后最重要的疾病之一。该疾病的遗传背景已被调查了一段时间前，遗传力估计约0.10已获得。为了计算当前估计值，使用1680头采样母猪及其2001窝临床检查的数据集，采用阈值责任模型进行方差分量估计。通过分娩后12-48 h的临床检查确定受影响母猪。加性遗传方差的后验均值为0.10，PDS的估计遗传力平均为0.0879，95%置信区间为0.0876和0.0881。这些结果与其他研究的结果一致，并强调了考虑PDS易感性的遗传倾向以及其他因素（包括卫生和管理条件）的重要性。
The postpartum dysgalactia syndrome (PDS) represents one of the most important diseases after parturition in sows. The genetic background of the disease has been investigated some time ago and heritability estimates around 0.10 have been obtained. To compute current estimates, a dataset of 1680 sampled sows and their 2001 clinically examined litters was used for variance components estimation with a threshold liability model. Affected sows were defined through clinical examination 12-48 h after parturition. Posterior mean of additive genetic variance was 0.10 and estimated heritability for PDS averaged 0.0879 with a 95% confidence interval of 0.0876 and 0.0881. The results are in agreement with those of other studies and emphasize the importance of considering the genetic predisposition for susceptibility to PDS as well as of additional factors including hygiene and management conditions.