Course of Animal and Grassland Sciences, Graduate School of Agriculture, University of Miyazaki, Miyazaki, Japan.
Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan.
Anim Sci J. 2020 Jan-Dec;91(1):e13377. doi: 10.1111/asj.13377.
The objectives of this study were to assess abortion risk (AR) and the number of piglets that died during suckling periods per litter (DP) in farms infected with porcine epidemic diarrhea (PED) in relation to herd immunization procedures. Data were obtained from 91 farms in Japan that had PED infection during 2013 to 2014. The 91 PED-positive farms were asked the number of abortions that occurred and DP for 3 months (1 month before PED outbreak (previous month), 1 month after PED outbreak (the month of PED), and from 1 month after PED outbreak to 2 months after PED outbreak (following month)). AR in each month was calculated as the number of abortions divided by sow inventory. Both AR and DP in the month of PED were higher than those in the previous and following months (p < .05). Farms that performed a herd immunization procedure had higher AR and DP in the month of PED than those that did not perform the procedure (p < .05). In summary, PED occurrence increased AR and DP.
本研究旨在评估感染猪流行性腹泻（PED）的农场中与畜群免疫程序相关的流产风险（AR）和每窝哺乳期死亡仔猪数（DP）。数据来自日本 91 个在 2013 年至 2014 年期间发生 PED 感染的农场。这 91 个 PED 阳性农场被问及流产的数量和 DP 为 3 个月（PED 爆发前 1 个月（前一个月），PED 爆发后 1 个月（PED 月份）和 PED 爆发后 1 个月至 2 个月（后一个月））。每个月的 AR 计算为流产数除以母猪存栏数。PED 月份的 AR 和 DP 均高于前一个月和后一个月（p <.05）。进行畜群免疫程序的农场在 PED 月份的 AR 和 DP 高于未进行该程序的农场（p <.05）。总之，PED 的发生增加了 AR 和 DP。
