Factors affecting the herd level of antibodies against Mycobacterium avium subspecies paratuberculosis in dairy cattle

A case-control study was made of Norwegian dairy herds with high and low herd levels of antibodies against Mycobacterium avium subspecies paratuberculosis. A high proportion of the herds had a considerable number of seropositive cows, and environmental and management factors were examined for possib...

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Bibliographic Details
Published inVeterinary record Vol. 154; no. 17; pp. 522 - 526
Main Authors Fredriksen, B., Jarp, J., Djønne, B., Tharaldsen, J., Nyberg, O.
Format Journal Article
LanguageEnglish
Published England BMJ Publishing Group Limited 24.04.2004
Blackwell Publishing Ltd
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Summary:A case-control study was made of Norwegian dairy herds with high and low herd levels of antibodies against Mycobacterium avium subspecies paratuberculosis. A high proportion of the herds had a considerable number of seropositive cows, and environmental and management factors were examined for possible associations with the high serological levels of antibodies. The most important appeared to be: geographical location, red deer (Cervus elaphus) gaining access to the pastures for cattle, the observation of wild birds in the feed storage, and herds sharing common pasture with other herds of cattle. However, diagnostic tests showed that none of the animals in the case herds was infected with M a paratuberculosis.
Bibliography:ObjectType-Article-1
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content type line 23
ISSN:0042-4900
2042-7670
DOI:10.1136/vr.154.17.522