Browsing 1977 Onderstepoort Journal of Veterinary Research, Volume 44, 1977 by Author "Butt, M.J."

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Browsing 1977 Onderstepoort Journal of Veterinary Research, Volume 44, 1977 by Author "Butt, M.J."

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  • Parasites of domestic and wild animals in South Africa. II. Oestrus ovis in goats 
    Horak, Ivan Gerard; Butt, M.J.; De Kock, V.E.; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Bigalke, R.D.; Cameron, Colin McKenzie; Walker, Jane B. (The Government Printer,Pretoria, 1977)
    During a period of 13 months, 130 goats' heads, obtained from the Johannesburg Municipal Abattoir, were examined for infestation with Oestrus ovis. Infestation was present in 73,8% of the heads and the mean burden comprised ...
  • Parasites of domestic and wild animals in South Africa. III. Oestrus spp. and Gedoelstia hässleri in the blesbok 
    Horak, Ivan Gerard; Butt, M.J.; De Kock, V.E.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (The Government Printer, Pretoria, 1977)
    Four blesbok culled in the Rietvlei Nature Reserve, Pretoria, District during May 1972 were found to harbour large burdens of 1st instar Oestrus spp. larvae and from 16-37 3rd instar larvae of Oestrus macdonaldi. They were ...