Browsing 1985 Onderstepoort Journal of Veterinary Research, Volume 52, 1985 by Subject "Veterinary medicine -- South Africa"

Browsing 1985 Onderstepoort Journal of Veterinary Research, Volume 52, 1985 by Subject "Veterinary medicine -- South Africa"

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  • Author index 
    Bigalke, R.D. (Pretoria : Government Printer, 1985)
  • Biotechnology, viral oncogenesis and jaagsiekte 
    Verwoerd, Daniel Wynand; Bigalke, R.D. (Published by The Government Printer, Pretoria, 1985)
    A brief description is given of the discovery of retroviral and cellular oncogenes and of their putative role in oncogenesis. Attempts to apply the biotechnological techniques that were so successful in the study of other ...
  • Bovine leukaemia virus and enzootic bovine leukosis 
    Couez, D.; Burny, A.; Cleuter, Y.; Bruck, C.; Deschamps, J.; Gregoire, D.; Ghysdael, J.; Kettmann, R.; Mammerickx, M.; Marbaix, G.; Portetelle, D.; Bigalke, R.D. (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 ...
  • Chemotherapy of experimental Besnoitia besnoiti infection in rabbits 
    Shkap, Varda; De Waal, D.T.; Potgieter, Fred T.; Bigalke, R.D. (Published by The Government Printer, Pretoria, 1985)
    Rabbits were infected with a bovine strain of Besnoitia besnoiti parasites derived from VERO cell cultures. Oxytetracycline*, given at 30 mg/kg i.m. simultaneously with infection, prevented the development of orchitis. The ...
  • The effect of arsenical dips on Parafilaria bovicola in artificially infected cattle in South Africa 
    Nevill, E.M.; Bigalke, R.D. (Published by The Government Printer, Pretoria, 1985)
    The possible adverse effect of arsenical tick control dips on Parafilaria bovicola infections was investigated in 48 artificially infected cattle. A treatment group of 24 cattle was dipped in a plunge dip containing 1600 ...
  • The effect of stress on udder health of dairy cows 
    Giesecke, W.H.; Bigalke, R.D. (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 ...
  • The efficacy of hyperimmune serum in the treatment of sweating sickness 
    Oberem, P.T.; Van Amstel, S.R.; Matthee, O.; Bezuidenhout, J. Dürr; Bigalke, R.D. (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 ...
  • Enrichment of a fraction toxic to guinea-pigs from Pachystigma pygmaeum (Schltr.) Robyns 
    Verschoor, J.A. (Jan Adrianus), 1953-; Patterton, H.G.; Potgieter, D.J.J.; Bigalke, R.D. (Published by The Government Printer, Pretoria, 1985)
    Pachystigma pygmaeum is one of several species of rubiaceous plants which cause delayed heart failure among ruminants after their ingestion at relatively high doses. Using guinea-pigs for toxicity determinations, we were ...
  • The epidemiology and control of gastrointestinal nematode infestation of sheep and cattle in South Africa. I. The historic role of Onderstepoort and a short discussion of present research priorities 
    Van Wyk, Jan Aucamp; Bigalke, R.D. (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 ...
  • The epidemiology of African swine fever: the role of free-living hosts in Africa 
    Thomson, G.R. (Gavin); Bigalke, R.D. (Published by The Government Printer, Pretoria, 1985)
    The known distribution of African swine fever (ASF) virus in Africa is reviewed in relation to the distributions of its free-living hosts as are the infection rates of these species in different localities in southern ...
  • The epidemiology of infectious diseases of livestock 
    Murphy, F.A.; Bigalke, R.D. (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 ...
  • The epidemiology of Parafilaria bovicola in the Transvaal Bushveld of South Africa 
    Nevill, E.M.; Bigalke, R.D. (Published by The Government Printer, Pretoria, 1985)
    A total of 20 375 flies collected off cattle on 12 farms over 36 months were identified and examined for 3rd stage P. bovicola. The 3 vector species accounted for 64,1 % of the flies collected and were the only fly species ...
  • The epizootiology and control of heartwater and other tick-borne diseases of cattle in South Africa 
    Bezuidenhout, J. Dürr; Bigalke, R.D. (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 ...
  • An experimental mycotoxicosis in sheep and goats caused by Drechslera campanulata, a fungal pathogen of green oats 
    Marasas, Walter F.O. (Walter Friedrich Otto); Collett, M.G.; Van der Westhuizen, G.C.A.; Schneider, D.J.; Bigalke, R.D. (Published by The Government Printer, Pretoria, 1985)
    Field outbreaks of a syndrome of unknown aetiology associated with the grazing of green oats (Avena sativa) in the south-western Cape Province were characterized by diarrhoea, photosensitivity and death in goats and by ...
  • Hepatogenous photosensitivity diseases in South Africa 
    Coetzer, Jacobus A.W.; Kellerman, T. Stephanus; Bigalke, R.D. (Published by The Government Printer, Pretoria, 1985)
    Various hepatogenous photosensitivity diseases of ruminants in South Africa, caused by plants, fungi and an alga, are described. Information is given on botanical, mycological, toxicological, clinical and pathological ...
  • In vitro cultivation of Cowdria ruminantium 
    Paterson, C.L.; Barnard, B.J.H.; Bezuidenhout, J. Dürr; Bigalke, R.D. (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 ...
  • An in vivo comparison of the efficacy of the heartwater blood and ground-up tick suspension vaccines in calves 
    Bezuidenhout, J. Dürr; Spickett, Arthur M.; Bigalke, R.D. (Published by The Government Printer, Pretoria, 1985)
    Two groups of calves were respectively immunized with heartwater blood (BV) and ground-up tick suspension (GUTS) vaccine. A third group was left unimmunized as controls. No difference in the immune status conferred could ...
  • Isolation of Cowdria ruminantium by cellular affinity chromatography and detection by an enzyme-linked immunosorbent assay 
    Prozesky, Leon; Verschoor, J.A. (Jan Adrianus), 1953-; Neitz, Albert Walter Herman; Viljoen, Gerrit Johannes; Vermeulen, N.M.J.; Oberem, P.T.; Bezuidenhout, J. Dürr; Putterill, John Fraser; Visser, L.; Bigalke, R.D. (Published by The Government Printer, Pretoria, 1985)
    The isolation of Cowdria ruminantium by means of wheat germ lectin affinity chromatography as described in this paper permits the recovery of partially purified viable organisms under mild conditions in short time. These ...
  • The morphology of a sensory receptor in the nippled tubercles of Schistosoma mattheei 
    Hamilton-Attwell, V.L.; Kruger, F.J.; Bigalke, R.D. (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.
  • Mycoplasmas recovered from bovine genitalia, aborted foetuses and placentas in the Republic of South Africa 
    Trichard, C.J.V.; Jacobsz, Elsie P.; Bigalke, R.D. (Published by The Government Printer, Pretoria, 1985)
    A total of 917 Mycoplasma isolations were made from 4 092 specimens originating from 2 874 cattle in private herds and at AI stations. The percentages of isolations from the different sources were: cervico-vaginal mucus ...