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首页> 外文期刊>Tropical Animal Health and Production >Serological evaluation of relationship between viral pathogens (BHV-1, BVDV, BRSV, PI-3V, and Adeno3) and dairy calf pneumonia by indirect ELISA
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Serological evaluation of relationship between viral pathogens (BHV-1, BVDV, BRSV, PI-3V, and Adeno3) and dairy calf pneumonia by indirect ELISA

机译：通过间接ELISA进行病毒学病原体（BHV-1，BVDV，BRSV，PI-3V和Adeno3）与奶牛肺炎之间关系的血清学评估

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In this study, viral pathogens associated with nine outbreaks of naturally occurring dairy calf pneumonia in Mashhad area of Khorasan Razavi province from September 2008 to May 2009 were assessed. Five diseased calves from each farm were chosen for examination. Acute and convalescent serum samples were taken from calves with signs of respiratory disease. Sera were analyzed for antibodies to bovine viral diarrhea virus (BVDV), bovine herpesvirus type 1 (BHV-1), bovine respiratory syncytial virus (BRSV), parainfluenza virus type 3 (PI-3V), and bovine adenovirus-3 (BAV-3) by indirect ELISA kits. Among 42 serum samples collected at sample 1, seroprevalence values for viruses BHV-1, BVDV, BRSV, PI-3V, and BAV-3 were 61.9% (26), 57.1% (24), 64.2% (27), 90% (38), and 61.9% (26), respectively. Seroconversion to BVDV, BRSV, PI-3V, and BAV-3 occurred in 11.9% (5), 16.6% (7), 26.1% (11), and 21.4% (9) of animals, and 52.3% (22) had generated antibodies against one or more viral infections at sample 2. In addition, no significant relationship between seroprevalence of BHV-1, BVDV, BRSV, PI-3V, and BAV-3 and dairy herd size was observed ( > 0.05). According to serological findings, BHV-1, BVDV, BRSV, PI-3V, and BAV-3 are common pathogens of the dairy calf pneumonia in dairy herds in Mashhad area of Khorasan Razavi province, Iran.
机译：在这项研究中，评估了与2008年9月至2009年5月在Khorasan Razavi省Mashhad地区发生的9起自然发生的小牛肺炎相关的病毒病原体。从每个农场中选出五只患病的小牛进行检查。从有呼吸道疾病迹象的小牛采集急性和恢复期血清样品。分析血清中的牛病毒性腹泻病毒（BVDV），1型牛疱疹病毒（BHV-1），牛呼吸道合胞病毒（BRSV），3型副流感病毒（PI-3V）和3型牛腺病毒（BAV- 3）通过间接ELISA试剂盒。在样本1收集的42个血清样本中，病毒BHV-1，BVDV，BRSV，PI-3V和BAV-3的血清阳性率分别为61.9％（26），57.1％（24），64.2％（27），90％ （38）和61.9％（26）。血清转化为BVDV，BRSV，PI-3V和BAV-3的动物有11.9％（5），16.6％（7），26.1％（11）和21.4％（9）的动物和52.3％（22）的动物发生了血清转化产生了针对样品2的一种或多种病毒感染的抗体。此外，未观察到BHV-1，BVDV，BRSV，PI-3V和BAV-3的血清阳性率与牛群大小之间存在显着相关性（> 0.05）。根据血清学发现，BHV-1，BVDV，BRSV，PI-3V和BAV-3是伊朗Khorasan Razavi省Mashhad地区奶牛群中小牛肺炎的常见病原体。

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