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

dc.contributor.authorVan Wyk, Jan Aucamp
dc.contributor.authorGerber, H.M.
dc.contributor.editorBigalke, R.D.
dc.contributor.editorCameron, Colin McKenzie
dc.contributor.editorGilchrist, Frances M.C.
dc.contributor.editorMorren, A.J.
dc.contributor.editorVerster, Anna J.M.
dc.contributor.editorVerwoerd, Daniel Wynand
dc.contributor.editorWalker, Jane B.
dc.contributor.otherSteyn, P.J.J.
dc.date.accessioned2016-07-07T07:32:14Z
dc.date.available2016-07-07T07:32:14Z
dc.date.created2016
dc.date.issued1980
dc.descriptionThe 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.abstractInfective 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.citationVan 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.issn0330-2465
dc.identifier.urihttp://hdl.handle.net/2263/54078
dc.language.isoenen_ZA
dc.publisherPublished 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.subjectVeterinary medicineen_ZA
dc.subject.lcshVeterinary medicine -- South Africa
dc.titleBenzimidazole-resistant Haemonchus contortus-the effect of cryopreservation on the resistance of Successive generationsen_ZA
dc.typeArticleen_ZA

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