Van Wyk, Jan AucampGerber, H.M.Bigalke, R.D.Cameron, Colin McKenzieGilchrist, Frances M.C.Morren, A.J.Verster, Anna J.M.Verwoerd, Daniel WynandWalker, Jane B.Steyn, P.J.J.2016-07-072016-07-0720161980Van Wyk, JA & Gerber, HM 1980 'A field strain of Haemonchus contortus showing slight resistance to rafoxanide’, Onderstepoort Journal of Veterinary Research, vol. 47, no. 3, pp. 137-142.0330-2465http://hdl.handle.net/2263/54061The articles have been scanned in colour with a HP Scanjet 5590; 300dpi. Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.A field strain of H. contortus, already resistant to benzimidazole anthelmintics, was also found to be slightly resistant to rafoxanide. This is apparently the first report of resistance to rafoxanide in a field strain of H. contortus.en©1980 ARC - Onderstepoort and Faculty of Veterinary Science, University of Pretoria (original). ©2016 University of Pretoria Department of Library Services (digital).Veterinary medicineVeterinary medicine -- South AfricaArticle