Publications

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seasonal occurrence of coccidia in a mixed herd of sheep and goats at nebo, northern province, south africa.the seasonal occurrence of coccidial oocysts was determined in a mixed herd of indigenous goats and cross-bred sheep at nebo, northern province, south africa. the herd of c. 30 sheep was housed with c. 70 goats in 1 camp. over a period of 14 months, 114 faecal specimens were collected from sheep and 369 from goats and the number of oocysts per gram of faeces (opg) determined. the mean opg value for the adult sheep (1187.9) was significantly (p = 0.035) lower than the mean opg value for the adult ...19989850512
anthelmintic resistance in south africa: surveys indicate an extremely serious situation in sheep and goat farming.surveys to determine the prevalence and degree of resistance of haemonchus spp. of sheep and goats to the available anthelmintics in south africa indicate that small ruminant production is entering a crisis situation. three surveys employing the faecal egg count reduction (fecr) test to determine resistance were conducted in some of the main sheep-producing areas in the summer rainfall region of south africa, where h. contortus is the principal worm species in sheep. after analyzing the data rec ...199910689700
linognathus weisseri n. sp. (phthiraptera: linognathidae) of impalas, aepyceros melampus: description and biology.the adult male and female and first instar nymph of the sucking louse linognathus weisseri n. sp. are described. this louse was collected from impalas, aepyceros melampus, at three localities in limpopo province, and at three in mpumalanga province, south africa. although it usually accounted for only a small proportion of the total louse burden, its overall prevalence exceeded 27%. its prevalence on adult male impalas (9%) was significantly lower (p = 0.004) than that on adult females (39%), bu ...200415185576
prevalence, pathogenesis, antibiotic susceptibility profiles, and in-vitro activity of selected medicinal plants against aeromonas isolates from stool samples of patients in the venda region of south africa.the prevalence, pathogenic indices, such as haemolytic and haemagglutinating activities, antibiograms, and in-vitro activities of local medicinal plants against aeromonas isolates in vhembe district of limpopo province, south africa, were studied using standard microbiological methods. in total, 309 diarrhoeic stool samples were collected from patients attending five health centres in the region during december 2004-may 2005. aeromonas species were identified using the api 20e system. the haemag ...200718402186
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