Browsing South African National Veterinary Repository by Author "De Klerk, Daniel G."

Browsing South African National Veterinary Repository by Author "De Klerk, Daniel G."

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  • 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 ...