Browsing 1991 Onderstepoort Journal of Veterinary Research, Volume 58, 1991 by Subject "Ticks as carriers of disease"

Browsing 1991 Onderstepoort Journal of Veterinary Research, Volume 58, 1991 by Subject "Ticks as carriers of disease"

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  • The effect of tick infestation on the productivity of cows of three breeds of cattle 
    Scholtz, M.M.; Spickett, Arthur M.; Lombard, P.E.; Enslin, C.B.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)
    The effect of tick infestation of Hereford, Bonsmara and Nguni cows on the weaning masses of their calves in a dipping versus non-dipping situation was investigated. Breed had a major effect on the level of tick infestation, ...
  • A review of the ixodid ticks (Acari, Ixodidae) occurring in southern Africa 
    Walker, Jane B.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)
    Eighty-three species of ixodid ticks, as well as several entities that have yet to be described, occur in the Republic of South Africa plus the 4 independent states lying within its borders (Bophuthatswana, Venda, Transkei ...