Recently added

Onderstepoort Journal of Veterinary Research: Recent submissions

  • Author index 
    Anonymous; Du Toit, P.J. (Pretoria : The Government Printer, 1938)
  • Coproporphyrin excretion in East Coast Fever of cattle 
    Roets, G.C.S.; Du Toit, P.J. (Pretoria : The Government Printer, 1938)
    1. Coproporphyrin I and coproporphyrin III were isolated from the faeces and urine of cattle suffering from East Coast Fever. 2. The ratio of the I to the III series in the faeces of one animal was 1 : 1.15, whilst in that ...
  • Studies on the alimentary tract of Merino sheep in South Africa. V. The motility of the rumen under various conditions 
    Quin, J.I.; Van der Wath, J.G.; Du Toit, P.J. (Pretoria : The Government Printer, 1938)
    Experiments conducted on sheep with ruminal fistula have shown that normal ruminal movement may undergo very considerable variations from any rhythm that may be temporarily established. In this respect it is essentially ...
  • Studies on the alimentary tract of Merino sheep in South Africa. IV. Description of experimental technique 
    Quin, J.I.; Van der Wath, J.G.; Myburgh, S.; Du Toit, P.J. (Pretoria : The Government Printer, 1938)
    1. The importance is stressed of a more intensive study of digestion in ruminant animals, whose food, apart from being disintegrated by enzymes liberated from the digestive tract itself, is first of all subjected to a ...
  • The isolation of Cl. welchii, type B, from foals affected with dysentery 
    Mason, J.H.; Robinson, E.M.; Du Toit, P.J. (Pretoria : The Government Printer, 1938)
    An outbreak of dysentery in foals is recorded. The symptoms and post-mortem lesions have much in common with those of lamb dysentery. From the intestinal contents of two foals, Cl. welchii, type B (the lamb dysentery or ...
  • Immunization against Rinderpest, with special reference to the use of dried goat spleen 
    Pfaff, G.; Du Toit, P.J. (Pretoria : The Government Printer, 1938)
    (a) The various methods of immunizing against rinderpest are briefly summarised, the use of goat adapted virus being dealt with more fully. (b) Experiments leading up to the production of a vaccine prepared from dried ...
  • Seasonal prevelance of ixodid ticks on cattle in the Windhoek District of South West Africa/Namibia 
    Biggs, H.C.; Langenhoven, J.W.; Bigalke, R.D. (Pretoria : Government Printer, 1984)
    The seasonal prevalence of ixodid ticks was determined over a 2-year period by the weekly removal from at least 5 cattle of all adult ticks and the immature stages of Rhipicephalus evertsi mimeticus in the ears. The highest ...
  • Subject index 
    Anonymous; Bigalke, R.D. (Pretoria : Government Printer, 1984)
  • Author index 
    Anonymous; Bigalke, R.D. (Pretoria : Government Printer, 1984)
  • Heartwater. An overview of the clinical signs, susceptibility and differential diagnoses of the disease in domestic ruminants 
    Van de Pypekamp, H.E.; Prozesky, L.; Bigalke, R.D. (Pretoria : Government Printer, 1987)
    Heartwater is a frequently fatal tick-borne disease of ruminants caused by Cowdria ruminantium. In domestic ruminants the incubation period varies considerably and depends on the route of infection, virulence of the ...
  • The taxonomic status of the causative agent of heartwater 
    Scott, G.R.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    A fresh pragmatic classification of the rickettsias has been derived by applying the simplest techniques of numerical taxonomy. One order, the Rickettsiales, containing 3 families, the Rickettsiaceae, Phagosomaphilaceae, and ...
  • The construction of genomic libraries of Cowdria ruminantium in an expression vector, lambda gt11 
    Ambrosio, R.E.; Du Plessis, J.L.; Bezuidenhout, J.D.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    Genomic libraries of the Welgevonden and Kwanyanga isolates of Cowdria ruminantium have been constructed in an expression vector. These libraries contain approximately 4 x 10⁵ and 3 x 10⁵ recombinants respectively.
  • Purification of Cowdria ruminantium by immunoadsorbent affinity chromatography 
    Neitz, Albert Walter Herman; Vermeulen, N.M.J.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    Immunoselective methods with special reference to immunoadsorbent affinity chromatography as a means for the isolation of Cowdria ruminantium are reviewed. Attention is given to the source of the organism, immunization, ...
  • Purification of Cowdria ruminantium by lectin cellular affinity chromatography 
    Vermeulen, N.M.J.; Neitz, Albert Walter Herman; Viljoen, G.J.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    This review covers the isolation of Cowdria ruminantium by lectin cellular affinity chromatography from different Amblyomma hebraeum sources. Cellular affinity chromatography has been reviewed with special attention being ...
  • Purification of Cowdria ruminantium by density gradient centrifugation 
    Neitz, Albert Walter Herman; Vermeulen, N.M.J.; Viljoen, G.J.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    The isolation of Cowdria ruminantium by differential and isopycnic density gradient centrifugation is reviewed with special reference to the suitability of Percoll as density gradient medium. Infected sheep brain, Amblyomma ...
  • Metabolism and genetics of chlamydias and rickettsias 
    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 ...
  • The present state of Cowdria ruminantium cultivation in cell lines 
    Bezuidenhout, J.D.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    Attempts were made to grow 4 isolates of Cowdria ruminantium in cell lines. Three of these isolates, viz. Ball 3, Welgevonden and Kwanyanga, could be cultivated in a calf endothelial cell line, but experiments with the ...
  • The development of Cowdria ruminantium in neutrophils 
    Logan, L.L.; Whyard, T.C.; Quintero, J.C.; Mebus, C.A.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    The sequential development of C. ruminantium (Kwanyanga and Kumm isolates) was followed in caprine leukocyte cultures by light microscopy, direct immunofluorescent microscopy (DFA), indirect immunofluorescent microscopy ...
  • Heartwater: the development and life cycle of Cowdria ruminantium in the vertebrate host, ticks and cultured endothelial cells 
    Prozesky, L.; Du Plessis, J.L.; Bigalke, R.D. (Published by the Government Printer, Pretoria., 1987)
    Various aspects of the development and life cycle of Cowdria ruminantium are discussed. C. ruminantium is transmitted transstadially by certain Amblyomma species. Apparently organisms initially develop in the gut epithelial ...
  • Cowdria ruminantium: stability and preservation of the organism 
    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 ...