Browsing 2000 Onderstepoort Journal of Veterinary Research, Volume 67, 2000 by UP Author "Verwoerd, Daniel Wynand"

Browsing 2000 Onderstepoort Journal of Veterinary Research, Volume 67, 2000 by UP Author "Verwoerd, Daniel Wynand"

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  • The effect of a natural maedi-visna virus infection on the productivity of South African sheep 
    Bath, Gareth F.; Verwoerd, Daniel Wynand; Dungu, B.; Vorster, J.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute ., 2000)
    A cohort study was conducted in order to measure the effect of the chronic indurative lymphocytic mastitis caused by the South African strain of maedi visna virus (MVV) on the pre-weaning growth of lambs born ...