Browsing 1987 Onderstepoort Journal of Veterinary Research, Volume 54, 1987 by Issue Date

Browsing 1987 Onderstepoort Journal of Veterinary Research, Volume 54, 1987 by Issue Date

Sort by: Order: Results:

  • Heartwater : Past, Present and Future. Workshop (1986 : Kruger National Park, South Africa); Purnell, R.E.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    As a result of a personal survey in 1982, interviewing veterinarians from Louis Trichardt to Uitenhage, it was concluded that bovine heartwater is currently regarded as the most serious tick-borne disease problem in South ...
  • Heartwater : Past, Present and Future. Workshop (1986 : Kruger National Park, South Africa); Hurter, L.R.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    The intraperitoneal route was explored both as an alternative to the intravenous route for the vaccination of sheep and goat kids against heartwater and for the administration of an antibiotic to animals suffering from the ...
  • Von Aulock, Monika H.M.; Holzapfel, W.H.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    Faecal samples of 2 pigs, kept on a constant diet, were analysed for Lactobacillus acidophilus and other lactic acid bacteria at 1 week intervals over a period of 3 months. Enumeration of L. acidophilus by selective methods ...
  • De Waal, D.T.; Potgieter, F.T.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    Rhipicephalus evertsi evertsi larvae were fed on the ears of rabbits. Seven days after larval infestation, unfed, newly moulted nymphae were manually removed to infest a splenectomized donkey showing a patent Babesia ...
  • Coetzee, Bridgette B.; Stanford, G.D.; Davis, D.A.T.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    The Shaw larval test, in conjunction with adult tick immersion and stall tests, was utilized to confirm that a field strain of B. decoloratus, from Natal, is highly resistant to the ixodicide fenvalerate (Factor of ...
  • Nel, P.W.; Jordaan, P.; Anderson, L.A.P.; Kellerman, T. Stephanus; Reid, Clare; Schultz, R.A. (Rowena Anitra); Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    Urginea physodes (Jacq.) Bak., a species closely related to or possibly synonymous with U. pusilla, is described and its distribution given. Four bufadienolides were isolated from U. physodes and the approximated LD₅₀ and ...
  • Bigalke, R.D. (Pretoria : Government Printer, 1987)
    No abstract available
  • Nevill, E.M.; Sutherland, B.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    Thriving, permanent colonies of Musca xanthomelas and later of Musca nevilli were successfully established. However, because of the low reproduction potential of Musca lusoria a small colony only was kept for a limited ...
  • Kruger, F.J.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    As a pilot project of a study undertaken to determine the influence of S. mattheei X S. haematobium hybridization on various South African S. mattheei populations by means of biochemical-taxonomic methods, a comparative ...
  • Joubert, P.H.; Hamilton-Attwell, V.L.; Kruger, F.J.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    To determine whether Schistosoma mattheei is present in the south-western Transvaal, sixty habitats were searched for the intermediate host snail, Bulinus africanus. Ten populations of this snail were located, 2 of which ...
  • Heartwater : Past, Present and Future. Workshop (1986 : Kruger National Park, South Africa); Van der Merwe, Lente; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    The history of vaccination techniques against heartwater and the development of the infection and treatment method are reviewed briefly. Present techniques and their shortcomings are defined and possible areas of improvement ...
  • Williams, R.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    A single dilution enzyme-linked immunosorbent assay (ELISA), utilizing a reference serum with a known, predetermined end-titre was used to compute antibody titres of serum samples against African horsesickness virus. ...
  • Heartwater : Past, Present and Future. Workshop (1986 : Kruger National Park, South Africa); Du Plessis, J.L.; Malan, Letitia; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    A distinction is drawn between the non-specific resistance to heartwater of very young calves and that of cattle older than a year. The suckling-calf resistance is at its greatest during the first few weeks after birth and ...
  • Heartwater : Past, Present and Future. Workshop (1986 : Kruger National Park, South Africa); Du Plessis, J.L.; Camus, E.; Oberem, P.T.; Malan, Letitia; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    Antibodies in the sera of domestic ruminants that have been infected with Ehrlichia bovis and other ehrlichial agents cross-react with the Kümm strain of Cowdria ruminantium used in the indirect fluorescent antibody test ...
  • Heartwater : Past, Present and Future. Workshop (1986 : Kruger National Park, South Africa); MacKenzie, P.K.I.; McHardy, N.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    The current knowledge of the pathogenicity, clinical signs and mortality of artificial infections by syringe inoculation of Cowdria ruminantium in laboratory and wild strains of mice is reviewed. It is concluded that a ...
  • Heartwater : Past, Present and Future. Workshop (1986 : Kruger National Park, South Africa); Van Amstel, S.R.; Oberem, P.T.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    This paper reviews the available literature on the treatment of heartwater and draws comparisons with results obtained from recent work on experimentally-induced heartwater in sheep, calves and mice.
  • Logan, L.L.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    Blood collected in either sodium heparin or disodium edetate vacutainers from febrile goats infected with 4 isolates of Cowdria ruminantium and cryopreserved with 10% dimethyl sulphoxide at -70⁰C and -196⁰C was an effective ...
  • Heartwater : Past, Present and Future. Workshop (1986 : Kruger National Park, South Africa); Oberem, P.T.; Bezuidenhout, J. Dürr; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    The events leading to the production of an effective vaccine against heartwater are summarized. The production techniques used at Onderstepoort to produce and control the quality of the infected blood and nymph suspension ...
  • Heartwater : Past, Present and Future. Workshop (1986 : Kruger National Park, South Africa); McHardy, N.; MacKenzie, P.K.I.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    Heartwater is a tick-transmitted rickettsial infection of ruminants, caused by Cowdria ruminantium. The tetracyclines are the only compounds available for therapy of the disease. A screen, using mice infected with C. ...
  • Williams, J.C.; Vodkin, M.H.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    Chlamydial and rickettsial diseases pose a hazard to man and to domesticated and wild animals. The virulence mechanisms which aid the establishment of these obligate intracellular parasites in the eukaryotic host are ...