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- Browsing 1985 Onderstepoort Journal of Veterinary Research, Volume 52, 1985 by Issue Date
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Browsing 1985 Onderstepoort Journal of Veterinary Research, Volume 52, 1985 by Issue Date
Now showing items 21-40 of 45
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(Published by The Government Printer, Pretoria, 1985)Herpesviruses, previously isolated from cattle (Theodoridis, 1978), were further studied and provisionally placed in the bovid herpesvirus 4 (BHV-4) group. Major differences were found between IBR-IPV (BHV-1) and BHV-4 ...
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(Published by the Government Printer, Pretoria., 1985)When conventional techniques were applied to 84 isolates of Staphylococcus aureus from milk samples, it was found that they were all catalase and phosphatase positive and oxidase negative. They all fermented glucose within ...
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(Published by the Government Printer, Pretoria., 1985)Electron microscopy revealed that 80% of captured vervet monkeys, held in quarantine for experimental use, showed extensive proliferation of spiral-shaped bacteria on the mucosal epithelium of the large bowel. A consortium, ...
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(Published by The Government Printer, Pretoria, 1985)A paralytic condition of farm stock in South West Africa, characterized by prominent neuronal and some mild extraneuronal pigmentation, is described. The distribution of the pigment, which was mainly located in the larger ...
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(Published by The Government Printer, Pretoria, 1985)Paresis afflicted 85 out of a flock of 770 young Merino ewes kept on old wheat lands in the western Cape during a period of drought. Many of the paretic ewes died. The vegetation was sparse and was dominated by Trachyandra ...
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(Published by The Government Printer, Pretoria, 1985)From the time of the first modern studies of infectious diseases, by Koch, Pasteur, Theiler and their colleagues, it has been clear that laboratory investigation must be complemented by epidemiologic investigation. The ...
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(Published by The Government Printer, Pretoria, 1985)
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(Published by the Government Printer, Pretoria., 1985)Pathological lesions in untreated Angora goats infected with the Ball₃ strain of Cowdria ruminantium corresponded with those previously reported. A severe nephrosis was the most prominent pathological lesion in the animals ...
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(Published by The Government Printer, Pretoria, 1985)During scanning electron microscopy (SEM) of the tegument of Schistosoma mattheei, a structure was observed within the nippled tubercles. It is postulated that it is a sensory receptor with a tactile function.
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(Published by the Government Printer, Pretoria., 1985)It was shown in this study that Rhipicephalus evertsi evertsi males emit pheromones in the preparasitic as well as in the parasitic phases. Conspecific unengorged male and female images exhibited a high response to ...
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Addition of rabbit serum to EMJH medium improves isolation of Leptospira interrogans serovar hardjo (Published by the Government Printer, Pretoria., 1985)The addition of 2 % pooled rabbit serum to semi-solid commercial EMJH medium with EMJH enrichment and 0,5 mg of 5-fluorouracil per ml was found to enhance the growth rate and success of isolation of Leptospira interrogans ...
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(Published by The Government Printer, Pretoria, 1985)The appropriate literature has been reviewed for the purpose of defining the phenomenon of stress in lactating dairy cattle, establishing a baseline concept of lactation stress and emphasizing the most significant aspects ...
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(Published by The Government Printer, Pretoria, 1985)The double-stranded RNA gene coding for the surface antigen responsible for inducing neutralising antibodies has been isolated, converted to DNA, and cloned in the plasmid pBR322. So far, only plasmids containing inserts ...
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(Published by The Government Printer, Pretoria, 1985)The conglutinin titres of year-old Bonsmara-cross cattle infected with Cowdria ruminantium were inversely proportional to the severity of the reactions elicited by the infection. There was no correlation, however, between ...
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(Published by The Government Printer, Pretoria, 1985)Cowdria ruminantium was cultivated in a calf endothelial cell line after the cells had been irradiated at 45 & 90 GY. Another experiment in which the inoculum and non-irradiated cells were centrifuged together also yielded ...
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(Published by The Government Printer, Pretoria, 1985)The effect of both environmental and management related stressors on fertility is discussed. While environmental heat as a stressor is significant in disrupting normal reproductive cyclicity, management induced stress is ...
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(Published by The Government Printer, Pretoria, 1985)Infection of bovines with bovine leukaemia virus (BLV) manifests itself in either of two ways: 30-70% of carriers develop persistent lymphocytosis (PL), with the viral genome integrated at a large number of different sites ...
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The epizootiology and control of heartwater and other tick-borne diseases of cattle in South Africa (Published by The Government Printer, Pretoria, 1985)The history of the main bovine tick-borne diseases occurring in South Africa and the role Onderstepoort played in their identification and control is briefly reviewed. The present attitudes regarding the control of tickborne ...
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(Published by The Government Printer, Pretoria, 1985)The research activities of the Veterinary Research Institute, Onderstepoort, from its inception in 1908 until recent times are reviewed in this first article of a series on nematode epidemiology of sheep and cattle. While ...
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(Published by The Government Printer, Pretoria, 1985)Natural and experimental cases of sweating sickness were treated using a hyperimmune serum as specific treatment and hyperimmune serum combined with symptomatic and supportive treatment based on the clinico-pathological ...
Now showing items 21-40 of 45