Studies on Haemonchus contortus. XI. The effect of a bovine strain of Trichostrongylus axei in Merinos on natural pastures heavily infested with H. contortus
dc.contributor.author | Reinecke, R.K. | |
dc.contributor.author | De Villiers, I.L. | |
dc.contributor.author | Joubert, Gerda | |
dc.contributor.editor | Bigalke, R.D. | |
dc.date.accessioned | 2015-10-19T12:16:44Z | |
dc.date.available | 2015-10-19T12:16:44Z | |
dc.date.created | 2015 | |
dc.date.issued | 1984 | |
dc.description | The articles have been scanned in colour with a HP Scanjet 5590; 600dpi. 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 | Sheep grazed on natural pastures heavily infested with infective larvae of Haemonchus contortus. Sixty-eight weaned Merinos were divided into 6 groups on Day 0 (23 November 1977), and on Day +14 (7 December) 79 Merinos were divided into 7 groups. There were 2 groups of undosed controls and other groups were either dosed with infective larvae of Trichostrongylus axei (bovine strain) only on Days 0 and +14, or in combination with H. contortus, or with subsequent doses of H. contortus, 28 days later. One group (Group 12) was dosed with T. axei and treated with a subcutaneous injection of di-iodonitrophenol (DNP) on Day +14. With the exception of 2 sheep, the sheep of the first 6 groups survived until slaughter in March and April 1978, while many sheep (43) of the latter 7 groups died or were killed in extremis from March-May. T. axei dosed on 23 November (Day 0) protected Group 2 by >50% in >50% of sheep. In the latter 7 groups the best results were achieved when DNP was combined with predosing with T. axei. The poor results were probably due either to delayed predosing with T. axei or a massive challenge in the wettest summer on record. | en_ZA |
dc.description.librarian | am2015 | en_ZA |
dc.identifier.citation | Reinecke, RK, De Villiers, IL & Joubert, G 1984, ',Studies on Haemonchus contortus. XI. The effect of a bovine strain of Trichostrongylus axei in Merinos on natural pastures heavily Infested with H. contortus', Onderstepoort Journal of Veterinary Research, vol. 51, no. 1, pp. 71-79. | en_ZA |
dc.identifier.issn | 0330-2465 | |
dc.identifier.uri | http://hdl.handle.net/2263/50254 | |
dc.language.iso | en | en_ZA |
dc.publisher | Published by The Government Printer, Pretoria | en_ZA |
dc.rights | ©ARC - Onderstepoort and Faculty of Veterinary Science, University of Pretoria (original). ©University of Pretoria. Dept. of Library Services (digital). | en_ZA |
dc.subject | Veterinary medicine | en_ZA |
dc.subject.lcsh | Veterinary medicine -- South Africa | |
dc.title | Studies on Haemonchus contortus. XI. The effect of a bovine strain of Trichostrongylus axei in Merinos on natural pastures heavily infested with H. contortus | en_ZA |
dc.type | Article | en_ZA |