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Immunological response in cows to Mycoplasma bovigenitalium, strain 1836

Published online by Cambridge University Press:  15 May 2009

D. H. Roberts
D. H. Roberts
Affiliation:
Central Veterinary Laboratory, Weybridge, Surrey
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Four cows were inoculated via the udder with the 1836 strain of Mycoplasma bovigenitalium. The serological response was investigated using the complement-fixation and serum plate agglutination tests. A heterologous response to M. mycoides was observed, associated with an increase in the anti-γ-globulin titres in the cow's serum. The heterologous response persisted in one cow for 6 weeks after infection. The nature of the immunoglobulin response was characterized by density gradient centrifugation, and by mercaptoethanol and rivanol treatment of the serum and was found to consist entirely of 19 S γ-globulins.

The Mycoplasma persisted in the udder for the 18 weeks duration of the experiment. The Mycoplasma was not isolated from the blood. One of the cows became lame with swollen joints; Bacillus cereus was isolated from the joints and blood.

Type
Research Article
Information
Journal of Hygiene , Volume 66 , Issue 4 , December 1968 , pp. 585 - 593
Copyright
Copyright © Cambridge University Press 1968

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