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Browsing 1989 Onderstepoort Journal of Veterinary Research, Volume 56, 1989 by Author "Bezuidenhout, J. Dürr"
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Du Plessis, J.L.; Van Gas, L.; Olivier, J.A.; Bezuidenhout, J. Dürr; Verwoerd, Daniel Wynand
(Published by the Government Printer, Pretoria., 1989)
Ten stocks of Cowdria ruminantium (Ball 3, Breed, Comoro, Germishuys, Kümm, Kwanyanga, Mali, Mara, Nonile and Welgevonden) were compared from a cross-immunity, serological and mouse pathogenicity point of view. They were ...