Benzimidazole-resistant Haemonchus contortus-the effect of cryopreservation on the resistance of Successive generations

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dc.contributor.author Van Wyk, J.A. (Jan Aucamp)
dc.contributor.author Gerber, H.M.
dc.contributor.editor Bigalke, R.D.
dc.contributor.editor Cameron, Colin McKenzie
dc.contributor.editor Gilchrist, Frances M.C.
dc.contributor.editor Morren, A.J.
dc.contributor.editor Verster, Anna J.M.
dc.contributor.editor Verwoerd, Daniel Wynand
dc.contributor.editor Walker, Jane B.
dc.contributor.other Steyn, P.J.J.
dc.date.accessioned 2016-07-07T07:32:14Z
dc.date.available 2016-07-07T07:32:14Z
dc.date.created 2016
dc.date.issued 1980
dc.description The 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. en_ZA
dc.description.abstract Infective larvae (L3) of a strain of benzimidazole-resistant Haemonchus contortus were stored in the gas phase of liquid nitrogen, thawed and used to infest worm-free sheep from which, in turn, larvae were cultured, frozen and thawed. This cycle was repeated 5 times. Thereafter, the progeny of the cryopreserved larvae were compared with the progeny of the original untreated larvae for susceptibility to benzimidazole anthelmintics. Repeated freezing of consecutive generations of L3 in liquid nitrogen did not appear to affect their relative resistance to benzimidazoles and, although other strains must also be tested, it would seem that cryopreservation may be used for storing resistant strains. en_ZA
dc.identifier.citation Van Wyk, JA & Gerber, HM 1980, 'Benzimidazole-resistant Haemonchus contortus - the effect of cryopreservation on the resistance of successive generations.’, Onderstepoort Journal of Veterinary Research, vol. 47, no. 3, pp. 143-146. en_ZA
dc.identifier.issn 0330-2465
dc.identifier.uri http://hdl.handle.net/2263/54078
dc.language.iso en en_ZA
dc.publisher Published by the Government Printer, Pretoria. en_ZA
dc.rights ©1980 ARC - Onderstepoort and Faculty of Veterinary Science, University of Pretoria (original). ©2016 University of Pretoria Department of Library Services (digital). en_ZA
dc.subject Veterinary medicine en_ZA
dc.subject.lcsh Veterinary medicine -- South Africa
dc.title Benzimidazole-resistant Haemonchus contortus-the effect of cryopreservation on the resistance of Successive generations en_ZA
dc.type Article en_ZA


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