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1990 Onderstepoort Journal of Veterinary Research, Volume 57, 1990: Recent submissions
Now showing items 1-20 of 50
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(Published by the Government Printer, Pretoria., 1990)Samples of 6, 1st generation larval populations of Boophilus decoloratus, originating from field collected females, were subjected to increasing doses of the organophosphate acaricide, Dioxathion. The dose-response ...
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(Published by the Government Printer, Pretoria., 1990)In the course of three experiments it was established that all the toxic effects of a lethal dose of Albizia versicolor pods (> 4,5g/kg) in guinea-pigs could be countered by concurrent subcutaneous injection of pyridoxine ...
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(Published by the Government Printer, Pretoria., 1990)Parafilariosis was first described in South Africa in 1964, thereafter being discovered at numerous localities in the country. When it became obvious that Parafilaria bovicola, for which no treatment was known, caused ...
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(Published by the Government Printer, Pretoria., 1990)Temperature-humidity index (THI) values applicable to South Africa and Namibia have been established during this investigation for each month of the year by means of computerized modelling and mapping techniques. The data ...
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(Published by the Government Printer, Pretoria., 1990)Immunoblotting of Cowdria ruminantium proteins with sheep or bovine antiserum identified 2 antigenically conserved proteins, one being an immunodominant 31 kDa and the other a minor 27 kDa protein. These proteins are present ...
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(Published by the Government Printer, Pretoria., 1990)The immunity conferred by an A. pyogenes bacterin-toxoid was evaluated in sheep, using an intravenous challenge system. Three sheep were vaccinated and 3 served as controls. The vaccinated sheep were not protected against ...
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(Published by the Government Printer, Pretoria., 1990)
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(Published by the Government Printer, Pretoria., 1990)Data collected on both free-living and parasitic tick populations are likely to be overdispersed. The use of means from few replicate samples of overdispersed data as quantitative estimators of tick population density is ...
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(Published by the Government Printer, Pretoria., 1990)Neither sheep immune to the Ball 3, the Kwanyanga or the Mara stocks of Cowdria ruminantium nor those immunized with combinations of these 3 stocks were protected against challenge with the Mali stock. Against challenge ...
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(Published by the Government Printer, Pretoria., 1990)Lyophilized tissues of mice and blood of sheep, infected with either the Kumm, the Welgevonden or the Ball 3 stock of Cowdria ruminantium, remain infective to mice and sheep after storage at 4ºC for 90 days. Freeze-dried ...
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(Published by the Government Printer, Pretoria., 1990)The teguments of adult Schistosoma mattheei from cattle and buffalo, S. hippopotami from hippopotamus and S. margrebowiei from lechwe were examined by means of scanning electron microscopy for cells possibly engaged in ...
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(Published by the Government Printer, Pretoria., 1990)Brucella melitensis biotype 1 was isolated in pure culture from the lungs, liver, spleen, kidney, stomach contents, abomasum and brain of an aborted caprine (Boer goat) foetus in the district of Cullinan, near Pretoria. ...
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(Published by the Government Printer, Pretoria., 1990)Assessments were made of the influence of several microclimatic variables on the availability of third-stage larvae of Ostertagia ostertagi, on pasture herbage. Variables most closely related to recovery of larvae from the ...
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(Published by the Government Printer, Pretoria., 1990)A strain of Trichostrongylus colubriformis from Nottingham Road, in Natal, was found to be solidly resistant to levamisole and morantel at the recommended dose levels. Untreated control sheep in fact harboured fewer worms ...
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(Published by the Government Printer, Pretoria., 1990)Filter paper discs were impregnated with a solution containing 20 mg of triphenyltetrazolium chloride per millilitre, and used in the typing of catalase-positive Campylobacter species. Also used were filter paper discs ...
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(Published by the Government Printer, Pretoria., 1990)Carrion-frequenting blow-flies (Chrysomyia albiceps and C. marginalis) were allowed 4 days of feeding on ³²P-orthophosphate-labelled blood or an Impala carcass (Aepyceros melampus) in the northern Kruger National Park, ...
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(Published by the Government Printer, Pretoria., 1990)Giemsa-stained, peripheral blood smears of 67 dogs, showing clinical signs typical of babesiosis or reminiscent of concurrent babesiosis and ehrlichiosis, were examined for the presence of Babesia canis and Ehrlichia canis. ...
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(Published by the Government Printer, Pretoria., 1990)November-March are the hottest months of the year with the highest monthly mean "temperature-humidity index" (THI) in South Africa and Namibia. These 5 months are associated with severe heat stress in dairy cattle, are of ...
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(Published by the Government Printer, Pretoria., 1990)Filter paper discs impregnated with solutions containing 0,25, 0,5 and 1 mg/ml of thionin acetate, 0,75 and 1,5 mg/ml of basic fuchsin and 0,5 mg/ml of thionin blue were used in the typing of Brucella species. All the ...
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(Published by the Government Printer, Pretoria., 1990)Certain aspects of the immune response of a male experimentally infected with 3-day old cercariae of a pure field strain of Schistosoma mattheei were investigated. Among others, aspects such as the reaction of eosinophils, ...
Now showing items 1-20 of 50