牛白血病病毒在奶牛首次产犊前就在奶牛群中传播开来。
Bovine leukemia virus becomes established in dairy herds before the first lactation.
作者信息
Merlini Ramiro, Gutiérrez Gerónimo, Alvarez Irene, Jaworski Juan Pablo, Carignano Hugo, Poli Mario, Willems Luc, Trono Karina
机构信息
Laboratorio de Virus Adventicios, Instituto de Virología, Centro de Investigaciones en Ciencias Veterinarias y Agronómicas (CICVyA), INTA, Nicolás Repetto y De los Reseros s/n, 1686, Hurlingham, Buenos Aires, Argentina.
Instituto de Genética. Centro de Investigaciones en Ciencias Veterinarias y Agronómicas (CICVyA), INTA, Nicolás Repetto y De los Reseros s/n, 1686, Hurlingham, Buenos Aires, Argentina.
出版信息
Arch Virol. 2016 Nov;161(11):3215-7. doi: 10.1007/s00705-016-2973-x. Epub 2016 Jul 30.
In this work, we studied seven groups of pregnant heifers from a consortium of dairy farms heavily infected with bovine leukemia virus (BLV). ELISA testing showed that the seroprevalence ranges of BLV in heifers between 36.1 and 66.5 %. No significant differences in proviral load were found when comparing heifers with adult cattle. Before their first delivery, more than 9.8 % of heifers show a high proviral load. Because BLV infection can occur during the first two years of life, the rationale of any strategy should be to take action as early as possible after birth.
在这项研究中，我们对来自一个受牛白血病病毒（BLV）严重感染的奶牛场联盟的七组怀孕小母牛进行了研究。酶联免疫吸附测定（ELISA）检测表明，小母牛中BLV的血清阳性率范围在36.1%至66.5%之间。在比较小母牛和成年牛时，未发现前病毒载量有显著差异。在首次分娩前，超过9.8%的小母牛表现出高前病毒载量。由于BLV感染可在出生后的头两年内发生，任何策略的基本原理都应该是在出生后尽早采取行动。
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