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1991 Onderstepoort Journal of Veterinary Research, Volume 58, 1991: Recent submissions
Now showing items 1-20 of 48
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)
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(Pretoria : Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)The tick burdens of 115 Merino sheep, slaughtered over a period of 15 consecutive months on a farm in the north-eastern Orange Free State, were determined. A total of 7 ixodid and 1 argasid tick species were recovered and ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)Chrysomya megacephala, also known as the Oriental latrine fly, is indigenous to south-east Asia. During the 1970's it successfully invaded Africa and South America, and more recently during the 1980's also established ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)During 1987 when cob rot was rife, perinatal losses were reported in flocks and herds that had been exposed to diplodiosis. The affected lambs or calves were either stillborn or died soon after birth. Dosing trials at the ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)Prophylactic dip treatments using formalin and malachite green were applied to 4-day old larvae and 12- and 20-day old juveniles of the European common carp, Cyprinus carpio and the African sharptooth catfish, Clarias ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)Malachite green and formalin were investigated as prophylactic dip treatments for developing embryos of Cyprinus carpio and Clarias gariepinus. Based on the findings, recommendations are made on the respective concentrations ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)The development of the tick-borne rickettsial pathogen Cowdria ruminantium (S stock) was studied in bovine umbilical endothelial (BUE) cell cultures and in goat choroid plexus, by light- and electron microscopy. Cowdria ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)Although of low morbidity, sweating sickness is readily induced in calves by infestation with positive Hyalomma truncatum adult ticks. This epitheliotrophic disease has no specific cure except by the administration of ...
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Parasites of South African wildlife. X. Helminths of red duikers, Cephalophus natalensis, in Natal (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)The helminths of the following red duikers, Cephalophus natalensis, were examined: 24 from 3 game reserves in Natal and 1 that had originated from Charters Creek, Natal, shortly before it died in the National Zoological ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)Helminth and arthropod parasites were collected from 41 warthogs, Phacochoerus aethiopicus, in the Hoedspruit Nature Reserve, eastern Transvaal. This reserve consists of a military base, which is a restricted area and is ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)Two field trials, one with suckling Merino ewe lambs and the other with yearling Dohne Merino rams, are described. In these the anthelmintic efficacy of febantel (a benzimidazole), ivermectin, levamisole and morantel are ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)Eighteen red duikers, Cephalophus natalensis, from the Charters Creek Nature Reserve and 2 from Fanies Island Nature Reserve were processed for arthropod parasite recovery. They harboured 8 species of ixodid ticks and 2 ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)During surveys of the helminths of South African wildlife, a Cooperia sp. that closely resembles Cooperia rotundispiculum Gibbons & Khalil, 1980, was recovered from several antelope species. This nematode has spicules ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)The helminths of 77 nyala, Tragelaphus angasii, from 4 game reserves in Natal, were collected, counted and identified. Ten nematode species and 4 nematode genera, a trematode species and paramphistomes, and 2 cestode genera ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)The helminths of 25 kudu, Tragelaphus strepsiceros, from 3 localities in the eastern Cape Province were collected, counted and identified. The majority of kudu harboured no worms, and the burdens of those infected were ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)A drop in egg production associated with loss of pigment and soft-shelled eggs was experienced on a farm in the Western Cape. Investigations revealed high levels of antibodies against adenovirus 127, the causative agent ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)The epidemiological, clinical and clinical pathological findings in 20 cattle and 4 sheep from 15 outbreaks of poultry litter toxicity in South Africa over the past 6 years are documented. In 6 outbreaks, the litter emanated ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)Amblyomma hebraeum male and female ticks, experimentally infected as larvae with the Ball 3 stock of Cowdria ruminantium, were fed on a heartwater susceptible sheep. The initial attachment of the males was required as a ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)Adult females of the tick Boophilus decoloratus were removed from 6 breeds of cattle on 2 farms in the Northern Transvaal. Highest numbers of female ticks were collected from Simmentaler, followed by Santa Gertrudis, ...
Now showing items 1-20 of 48