Browsing South African National Veterinary Repository by Author "Scholtz, M.M."

Browsing South African National Veterinary Repository by Author "Scholtz, M.M."

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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, ...
  • Resistance of Nguni, Bonsmara and Hereford cattle to ticks in a Bushveld region of South Africa 
    Spickett, Arthur M.; De Klerk, Daniel G.; Enslin, C.B.; Scholtz, M.M.; Verwoerd, Daniel Wynand (Published by the Government Printer, Pretoria., 1989)
    Counts of engorged female ticks on naturally infested cattle over a 2 year period, showed that indigenous Nguni cattle harboured significantly fewer Amblyomma hebraeum, Boophilus decoloratus and Hyalomma spp. during periods ...