The serological BHV1 status of dams determines the precolostral status of their calves
作者:
J.C. Bosch,
J.A.H. van Lieshout,
J.J. de Wit,
E.A.M. Graat,
M.J.M. Somers,
期刊:
Veterinary Quarterly
(Taylor Available online 2000)
卷期:
Volume 22,
issue 2
页码: 99-102
ISSN:0165-2176
年代: 2000
DOI:10.1080/01652176.2000.9695033
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Precolostral calves and their dams were serologically investigated for the presence of antibodies against Bovine Herpesvirus 1 in diagnostic tests with a very high sensitivity and specificity. Although the syndesmo‐chorial type of placenta of ruminants does not transfer gamma globulins, a large number of calves had antibodies, in most cases in a very low concentration. Significant correlations were found between the serological status of the dam, the status of the calf, and the titre of antibodies. Oral intake of maternal blood by the calf at birth or transmission or leakage of maternal antibodies during pregnancy might be possible causes of precolostrally positive calves. From the results it is concluded that to reduce the risk of obtaining BHV1‐positive calves, BHV1‐negative dams should be selected for breeding purposes.
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