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Browsing by UP Author "Huchzermeyer, Fritz W."
Now showing items 1-20 of 25
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Huchzermeyer, Fritz W.; Henton, Marijke M.; Riley, J.; Agnagna, M.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute ., 2000)Intestinal contents were collected from wild-caught African dwarf crocodiles (Osteolaemus tetraspis) in 1993 and 1995 which were slaughtered at urban markets in the Congo Republic. The samples were kept frozen and brought ...
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Boomker, Jacob Diederik Frederik; Huchzermeyer, Fritz W.; Henton, Marijke M.; Naude, T.W.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1997)
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Huchzermeyer, Fritz W.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1988)Infection of young turkeys with Plasmodium durae produced a significant increase in the mean relative right ventricular mass from 0,172 in the controls to 0,208 in the infected group. Although turkeys react less strongly ...
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Huchzermeyer, Fritz W. (Cambridge University Press, 2012-03)Broiler ascites, first seen in the form of a high altitude disease, has increased in importance world-wide in direct proportion to the improvement in growth performance of modern broilers. At the same time, the incidence ...
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Huchzermeyer, Fritz W.; Cilliers, J.A.; Diaz Lavigne, Celestina D.; Bartkowiak, R.A.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)Infection with the obligatory intra-erythrocytic anaplasma-like rickettsia Aegyptianella pullorum in 4-week old broilers at a moderate altitude of 1 200 m produced a significant increase in the mean relative right ...
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Guthrie, Alan John; Huchzermeyer, Fritz W.; Cilliers, J.A.; Killeen, Valerie M.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)A technique for the catheterisation of the right ventricle and pulmonary artery of the domestic fowl is described. Mean peak systolic, minimum diastolic and mean pressures measured in the right ventricle and pulmonary ...
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Huchzermeyer, Fritz W.; De Ruyck, An M.C.; Van Ark, H.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1988)Broilers of 4 different commercial strains were kept during winter at an altitude of 1 350m. The birds were slaughtered at weekly intervals and their relative right ventricular mass (pulmonary arterial pressure index = API ...
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Huchzermeyer, Fritz W.; Horak, Ivan Gerard; Putterill, John Fraser; Earle, R.A.; Verwoerd, Daniel Wynand (Pretoria : Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)Aegyptianella botuliformis n. sp. (Rickettsiales: Anaplasmataceae) isolated from helmeted guineafowls Numida meleagris from the Kruger National Park is described. The rickettsia occurs within a membrane-bound vacuole in ...
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Huchzermeyer, Fritz W.; Bartkowiak, R.A.; Potgieter, F.T.; Van Rensburg, L.; Labuschagne, F.J.; Van Biljon, B.J.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1988)Heparinized whole blood, parasitized with Aegyptianella pullorum, was collected from 2 fowls. Buffered lactose peptone (BLP) was added v/v as a stabilizer and the mixture lyophilized in 2ml aliquots after rapid or slow ...
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Huchzermeyer, Fritz W.; Boomker, Jacob; Henton, Marijke M.; Naude, T.W.; Bigalke, R.D. (Published by The Government Printer, Pretoria, 1984)Ulcerative skin lesions were encountered in rainbow trout raised in sea water by a commercial concern in the Western Cape, South Africa. Grossly, the lesions resembled furunculosis but, histopathologically, they differed ...
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Huchzermeyer, Fritz W.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1996)In experimental infections, fowl , duck, guineafowl and canary were refractory to Plasmodium durae, which in Japanese quail produced low and transient infections, but a high and long-lasting parasitaemia in a Lady Amherst ...
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Huchzermeyer, Fritz W.; Bennett, G.F.; Earle, R.A.; Du Toit, Hester; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)The prevalence of avian haematozoa in 826 species of birds representing 73 families of sub-Saharan birds as recorded in the literature or in the files of the International Reference Centre for Avian Haematozoa and the ...
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Huchzermeyer, Fritz W.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)An annotated host-parasite list of the blood parasites of domestic poultry in sub-Saharan Africa is presented. This list contains the haematozoa found in domestic waterfowl (ducks, geese and muscovies) and phasianids ...
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Huchzermeyer, Fritz W.; Wallace, David Brian; Putterill, John Fraser; Gerdes, Truuske G.H. (Agricultural Research Council, ARC-OVI and the University of Pretoria, 2009)When large numbers of crocodile skins were downgraded because of the presence of small pin pricklike holes, collapsed epidermal cysts were found deep in the dermis of juvenile crocodiles while forming cysts were observed ...
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Huchzermeyer, Fritz W.; Penrith, Mary-Louise; Elkan, P.W.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2001)Wildlife mortality involving bongos, Tragelaphus eurycerus, and other ungulates was investigated in the north of the Congo Republic in 1997. Four bongos, one forest buffalo, Syncerus caffer nanus, and one domestic ...
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Zheng, Xiaoting; O’Connor, Jingmai K.; Huchzermeyer, Fritz W.; Wang, Xiaoli; Wang, Yan; Zhang, Xiaomei; Zhou, Zhonghe (Public Library of Science, 2014-04-14)A crop adapted for an herbivorous diet of seeds has previously been documented in the Early Cretaceous birds Sapeornis and Hongshanornis. Here we report on several specimens of Yanornis that preserve a crop containing ...
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Lane, Emily P.; Huchzermeyer, Fritz W.; Govender, Dhanashree (Danny); Bengis, Roy G.; Buss, Peter Erik; Hofmeyr, Markus; Myburgh, Jan G.; Steyl, Johan Christian Abraham; Pienaar, Daniel J.; Kotze, Antoinette (American Association of Zoo Veterinarians, 2013-12)Annual mortality events in Nile crocodiles (Crocodylus niloticus) in the Olifants River Gorge in Kruger National Park, South Africa, were experienced between 2008 and 2012, during which at least 216 crocodiles died. Live ...
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Huchzermeyer, Fritz W.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)Only 3 out of 8 South African isolates of Plasmodium durae used in 524 turkeys in 161 passages caused approximately 50% mortality, a further 3 produced approximately 10% mortality while 2 were found to be apathogenic. ...
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Huchzermeyer, Fritz W.; Riley, J.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1995)The lungs and viscera of 23 dwarf crocodiles (Osteolaemus tetraspis) obtained from markets in Brazzaville, were examined for pentastomid infection. Twenty-one animals were infected and harboured a total of 82 pentastomids, ...
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Myburgh, Jan G.; Kirberger, Robert M.; Steyl, Johan Christian Abraham; Soley, John Thomson; Booyse, Dirk J.; Huchzermeyer, Fritz W.; Lowers, Russell H.; Guillette, Louis J. (OpenJournals Publishing, 2014-05-05)The post-occipital sinus of the spinal vein is often used for the collection of blood samples from crocodilians. Although this sampling method has been reported for several crocodilian species, the technique and associated ...
Now showing items 1-20 of 25