Impact of a porcine epidemic diarrhea outbreak on swine productivity in Japan: a retrospective cohort study.
Impact of a porcine epidemic diarrhea outbreak on swine productivity in Japan: a retrospective cohort study.
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DOI：
10.1292/jvms.15-0723
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发表时间：
2016-10-01
期刊：
影响因子：
--
通讯作者：
Ito M
中科院分区：
文献类型：
--
作者：
Yamane I;Yamazaki H;Ishizeki S;Watanabe Y;Okumura H;Okubo M;Kure K;Hayakawa Y;Furukawa M;Ooi M;Mizukami Y;Ito M
目的是利用数据记录系统（PigINFO）调查2014年在日本发生的猪流行性腹泻（PED）疫情及其对畜群生产力的影响。研究猪群选自2013年7月至2015年3月期间进入PigINFO系统的从分娩到育肥的猪群（n=99）。2014年4月1日至6月30日（PED流行）期间，任何出现PED临床症状且粪便经聚合酶链反应分析和/或免疫组织化学染色呈猪流行性腹泻病毒（PEDV）阳性的畜群均被定义为PED阳性（n=38）。进一步分为长PED期（l -PED阳性，n=28）和短PED期（s -PED阳性，n=10）。没有PED临床症状的牛群被归类为PED阴性（n=61）。在研究期间，每3个月计算一次畜群生产数据，包括断奶前死亡率（%）、断奶后死亡率（%）、每窝断奶猪数（PWL）、每窝活产猪数、每年每交配母猪窝数和每头母猪出栏猪数（MP）。在PED流行期间，l -PED阳性畜群的PRWM和POWM显著高于PED阴性畜群，l -PED阳性和s -PED阳性畜群的PWL显著低于PED阴性畜群。在2014年10 - 12月期间，l - ped阳性畜群的MP显著低于ped阴性畜群。PED的爆发增加了死亡率，从而减少了市售猪的数量。迅速控制疫情对于减少PED感染造成的经济损失非常重要。
The objective was to investigate porcine epidemic diarrhea (PED) outbreak that occurred in 2014 in Japan and its effects on herd-level productivity using a data recording system (PigINFO). The study herds were selected from farrow-to-finish herds (n=99) that entered in the PigINFO system between July 2013 and March 2015. From 1 April to 30 June 2014 (PED epidemic), any herds with clinical signs of PED and feces positive for porcine epidemic diarrhea virus (PEDV) on polymerase chain reaction analysis and/or immunohistochemical staining were defined as PED-positive (n=38). They were further classified into those with long PED periods (L-PED-positive; n=28) and those with short PED periods (S-PED-positive; n=10). Herds with no clinical signs of PED were classified as PED-negative (n=61). Herd-level production data, including preweaning mortality (%; PRWM), postweaning mortality (%; POWM), pigs weaned per litter (PWL), pigs born alive per litter, litters per mated female per year and pigs marketed per sow (MP), were calculated every 3 months during study period. During the PED epidemic, L-PED-positive herds had significantly higher PRWM and POWM than PED-negative herds, and L-PED-positive and S-PED-positive herds had significantly lower PWL. During October–December 2014, L-PED-positive herds had significantly fewer MP than PED-negative herds. The PED outbreak increased mortality and consequently reduced the numbers of marketed pigs. The rapid control of an outbreak is important for reducing the financial losses arising from PED infections.
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影响因子：
3.7
作者：
Alvarez J;Sarradell J;Morrison R;Perez A
通讯作者：
Perez A
影响因子：
11.8
作者：
Lee S;Lee C
通讯作者：
Lee C
影响因子：
1.2
作者：
Yamane, Itsuro;Ishizeki, Sayoko;Yamazaki, Hisanori
通讯作者：
Yamazaki, Hisanori
DOI：
10.1016/j.tvjl.2015.02.017
发表时间：
2015-05
期刊：
Veterinary journal (London, England : 1997)
影响因子：
--
作者：
Jung K;Saif LJ
通讯作者：
Saif LJ
影响因子：
1.5
作者：
Stevenson, Gregory W.;Hoang, Hai;Yoon, Kyoungjin J.
通讯作者：
Yoon, Kyoungjin J.