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Browsing by UP Author "Penzhorn, Barend Louis"
Now showing items 1-20 of 60
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Zimmermann, David E.; Penzhorn, Barend Louis; Vorster, Ilse; Troskie, Milana; Oosthuizen, Marinda C. (Elsevier, 2021-03)The two black rhinoceros subspecies (Diceros bicornis bicornis and D. b. minor) in South African conservation areas are managed as separate metapopulations. Since infection with Babesia bicornis can be fatal in black ...
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Bosman, Anna-Mari; Oosthuizen, Marinda C.; Venter, Estelle Hildegard; Steyl, Johan Christian Abraham; Gous, Tertius A.; Penzhorn, Barend Louis (BioMed Central, 2013-05-01)BACKGROUND: Although reported sporadically from various countries, feline babesiosis appears to be a significant clinical entity only in South Africa, where Babesia felis is usually incriminated as the causative agent. ...
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Bosman, Anna-Mari; Oosthuizen, Marinda C.; Peirce, Michael A.; Venter, Estelle Hildegard; Penzhorn, Barend Louis (American Society for Microbiology, 2010-08)In a previous paper, we reported on a large number of cheetah blood specimens that gave positive signals only for Babesia and/or Theileria genus-specific probes on the reverse line blot (RLB) assay, indicating the presence ...
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Penzhorn, Barend Louis; Oosthuizen, Marinda C. (Frontiers Media, 2020-03-27)This is the first comprehensive review of the literature pertaining to Babesia species reported from domestic cats. Description of the four species (Babesia felis, Babesia cati, Babesia herpailuri, and Babesia pantherae) ...
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Penzhorn, Barend Louis (Elsevier, 2006)Although large and small piroplasms have been reported from various wild carnivore and ungulate species, relatively few have been named. In the past, mere presence of a piroplasm in a specific host frequently prompted ...
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Penzhorn, Barend Louis; Vorster, Ilse; Harrison-White, Robert F.; Oosthuizen, Marinda C. (BioMed Central, 2017-03-17)BACKGROUND : Babesia rossi, which is transmitted by Haemaphysalis spp. and is highly virulent to domestic dogs, occurs only in sub-Saharan Africa. Since dogs are not native to the region, it has been postulated that the ...
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Viljoen, S.; O'Riain, M.J.; Penzhorn, Barend Louis; Drouilly, M.; Vorster, Ilse; Bishop, J.M. (Elsevier, 2021-04)Despite the importance of disease as a wildlife management challenge in South Africa, baseline data on the epidemiology of pathogens occurring in free-ranging species has received little attention to date. Black-backed ...
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Penzhorn, Barend Louis (Elsevier, 2018-03)Finding a healthy balance between classical parasitology and clinical veterinary medicine remains a challenge. Veterinary Parasitology, of vital interest in sub-Saharan Africa, has always featured prominently at the Faculty ...
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Penzhorn, Barend Louis; Vorster, Ilse; Redecker, Gernot; Oosthuizen, Marinda C. (AOSIS OpenJournals, 2016-10)Although there is evidence of high seroprevalence of antibodies to Babesia spp. in dogs in central Namibia, clinical babesiosis is rarely diagnosed. Rhipicephalus sanguineus sensu lato, the vector of Babesia vogeli, is ...
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Penzhorn, Barend Louis; University of Pretoria. Faculty of Veterinary Science. Dept. of Veterinary Tropical Diseases (2009-09-30)The worm egg measures about 80-85 by 40-45 in size so that one can obtain an idea of the relative sizes of the two for diagnostic purposes. The preparation is made by the flotation technique of sheep faeces.
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Turner, Wendy C.; Penzhorn, Barend Louis; Getz, Wayne Marcus (Helminthological Society of Washington, 2016)We document morphological descriptions for 3 newly described Eimeria spp. that infect springbok (Antidorcas marsupialis). Eimeria antidorcasi n. sp. oocysts are ovoid, with average size (n 5 346) 26.2 6 18.8 (19.2–33.5 6 ...
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Penzhorn, Barend Louis; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)Twelve sets of incisors of Cape mountain zebras, 9 of which were from known-age individuals ranging in age from 11 months to 19 years, from the Mountain Zebra National Park, are described and depicted to illustrate not ...
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Ngeranwa, J.J.N.; Shompole, S.P.; Venter, Estelle Hildegard; Wambugu, A.; Crafford, Jan Ernst; Penzhorn, Barend Louis (Agricultural Research Council, ARC-OVI and the University of Pretoria, 2008-09)The seroprevalence of Anaplasma antibodies in wildlife (eland, blue wildebeest, kongoni, impala, Thomson's gazelle, Grant's gazelle, giraffe and plains zebra) and domestic animal (cattle, sheep and goat) populations was ...
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Golezardy, Habib; Oosthuizen, Marinda C.; Penzhorn, Barend Louis (Elsevier, 2016-07)Ticks were collected from 191 cheetahs at three breeding centres in North West and Limpopo Provinces, South Africa. Haemaphysalis elliptica, a common tick of large felids, was the most abundant species collected, while ...
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Penzhorn, Barend Louis (BioMed Central, 2020-04)For most of the 20th century the causative agent of canine babesiosis, wherever it occurred in the world, was commonly referred to as Babesia canis. Early research, from the 1890s to the 1930s, had shown that there were ...
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Penzhorn, Barend Louis; University of Pretoria. Faculty of Veterinary Science. Dept. of Veterinary Tropical Diseases (2009-09-30)The liver is the seat of infection with the Eimeria stiedae parasite in rabbits. The photo show numerous white nodules in a rabbit liver. Each nodule comprises thousands of the various developmental stages of the organism.
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Parsons, S.D.C.; Penzhorn, Barend Louis; Reyers, Fred; Steyl, Johan Christian Abraham; Becker, Piet J. (Elsevier, 2006)Neonatal, poikilocytic anaemia in some members of the Hippotragini has previously been documented but not fully investigated. This study was undertaken to describe the erythrocyte morphology of roan antelopes (Hippotragus ...
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Zorloni, A.; Penzhorn, Barend Louis; Eloff, Jacobus Nicolaas (Elsevier, 2010-02)Calpurnia aurea extracts are used in southern Ethiopia to protect stock against ticks. Acetone, hexane and water leaf extracts of C. aurea collected in southern Ethiopia were tested for repellent/attractant and acaricidal ...
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Penzhorn, Barend Louis; Schoeman, Tanya; Jacobson, Linda S. (Japanese Society of Veterinary Parasitology, 2006)Babesia felis originally described from wild cats in the Sudan was subsequently incriminated as causing clinical disease in domestic cats. Although babesiosis in domestic cats has been reported sporadically from various ...
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Van Vuuren, Moritz; Penzhorn, Barend Louis (International Office of Epizootics, 2015)The role of African wildlife in the occurrence of vector-borne infections in domestic animals has gained renewed interest as emerging and re-emerging infections occur worldwide at an increasing rate. In Africa, biodiversity ...
Now showing items 1-20 of 60