Browsing 1982 Onderstepoort Journal of Veterinary Research, Volume 49, 1982 by Issue Date

Browsing 1982 Onderstepoort Journal of Veterinary Research, Volume 49, 1982 by Issue Date

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  • Babesia, Theileria and Anaplasma spp. infecting sable antelope, Hippotragus niger (Harris, 1838), in southern Africa 
    Thomas, Shan E.; Wilson, D.E.; Mason, T.E.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    Some observations are recorded on blood parasites of sable antelopes. Blood smears of 124 of these antelopes from South Africa and Zimbabwe were examined and 7 were found to be positive for a Babesia sp., identified as ...
  • The ecology of Rhipicephalus zambeziensis and Rhipicephalus appendiculatus (Acarina, Ixodidae) with particular reference to Zimbabwe 
    Norval, R.A.I.; Walker, Jane B.; Colborne, J.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    R. zambeziensis, like R. appendiculatus, is primarily a parasite of domestic and wild herbivores, and sometimes carnivores. Both species occur in parts of east, central and southern Africa, but they are not as a rule ...
  • A study on the function of some subcellular systems of the sheep myocardium during gousiekte. II. The contractile protein system 
    Snyman, L.D.; Van der Walt, J.J.; Pretorius, P.J.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    Two groups of Merino sheep were intoxicated separately and at different times with "gousiektebossie" (Pachystigma pygmaeum) until definite symptoms of heart failure were auscultated. Cardiectomy was carried out and some ...
  • Schistosoma mattheei Veglia & LeRoux, 1929, egg output from cattle in a highly endemic area in the eastern Transvaal 
    Pitchford, R.J.; Visser, P.S.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    The results of 6-month estimations of S. mattheei faecal egg counts on 513 cattle in a highly endemic area of the eastern Transvaal over a 2-year period are given. After an initial high egg output of short duration the egg ...
  • Studies on the infectivity of Boophilus decoloratus males and larvae infected with Babesia bigemina 
    Gray, J.S.; Potgieter, F.T.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    Babesia bigemina was transmitted by male Boophilus decoloratus and also by intravenous inoculation of a homogenate prepared from infected incubated larval ticks.
  • Author index 
    Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Pretoria : Government Printer, 1982)
  • Studies on Haemonchus contortus. VII. The effect of treatment of Trichostrongylus axei prior to challenge with H. contortus 
    Reinecke, R.K.; Bruckner, Christel; De Villiers, I.L.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    Four-month-old worm-free Merino lambs were dosed with 20 000 infective larvae of Trichostrongylus axei on Day 0 and again on Day +14. On Day +83 they were treated with mebendazole at 15 mg/kg. All lambs in this group and ...
  • Studies on Haemonchus contortus. VIII. Attempts to protect suckling lambs against infestation with H. contortus 
    Reinecke, R.K.; De Villiers, I.L.; Joubert, Gerda; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    A group of 12 Merino lambs, 3,5 months of age, which were still suckling, were each dosed with 40 000 infective larvae of Trichostrongylus axei on Day 0. From Day +62 - Day 64 each of these lambs and those of a 2nd group ...
  • A study on the function of some subcellular systems of the sheep myocardium during gousiekte. I. The energy production system 
    Snyman, L.D.; Van der Walt, J.J.; Pretorius, P.J.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    In order to determine the status of the energy production system of the heart during cardiac failure of sheep with gousiekte, observations were made of the heart tissue levels of adenosine triphosphate (ATP), creatine ...
  • Studies on Strongylus asini. I. Experimental infestation of equines 
    Malan, F.S.; De Vos, Valerius; Reinecke, R.K.; Pletcher, J.M.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    Infective larvae were harvested from a culture of eggs collected from adult Strongylus asini recovered from a free-ranging Burchell's zebra, Equus burchelli, in the Kruger National Park. Worm-free zebra, horse and donkey ...
  • The seasonal incidence of helminth parasites and of Oestrus ovis in Karakul sheep in the Kalahari region of South West Africa/Namibia. 
    Biggs, H.C.; Anthonissen, M.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    The seasonal incidence of gastro-intestinal helminths and of Oestrus ovis was determined by slaughter of successive groups of 4 tracer lambs, each exposed on pasture for 33 days. Haemonchus contortus was present from March ...
  • The effect of temperature on the in vitro transcriptase reaction of bluetongue virus, epizootic haemorrhagic disease virus and African horsesickness virus 
    Huismans, H. (Henk), 1942-; Van Dijk, A.A.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    Virions of bluetongue virus (BTV), epizootic haemorrhagic disease virus (EHDV) and African horsesickness virus (AHSV) can be converted to core particles by treatment with chymotrypsin and magnesium. The conversion is ...
  • Studies on the physiopathology of chronic obstructive pulmonary disease in the horse. VI. The alveolar dead space 
    Littlejohn, A.; Bowles, Felicity; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    The alveolar dead space (VDalv) as a percentage of tidal volume was calculated in horses by substituting the values for partial pressure of carbon dioxide in end-expiratory gas (PE’CO₂) and for partial pressure of carbon ...
  • Slight resistance to the residual effect of closantel in a field strain of Haemonchus contortus which showed an increased resistance after one selection in the laboratory 
    Van Wyk, Jan Aucamp; Gerber, H.M.; Alves, Regina M.R.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    On the strength of a complaint of suspected resistance to closantel, a field strain of Haemonchus contortus was isolated from sheep on a farm near Pretoria and tested for resistance to the remedy, both without exposure to ...
  • Leptospira interrogans serovar pomona associated with abortion in cattle : isolation methods and laboratory animal histopathology 
    Herr, S.; Riley, A.E.; Neser, J.A.; Roux, D.; De Lange, J.F.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    Leptospira interrogans serovar pomona was successfully isolated from cattle urine in the western Transvaal after an abortion storm had occurred. Direct inoculation of EMJH medium proved the most successful method. The ...
  • Rearing the blood-feeding fly Haematobia thirouxi potans in the laboratory 
    Doube, B.M.; Fay, H.A.C.; Aschenborn, H.H.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    Two methods for rearing the African blood-feeding fly Haematobia thirouxi potans in the laboratory are described. The adult flies can be fed either on a bovine calf or in vitro, where they produced viable eggs only when ...
  • Parasites of domestic and wild animals in South Africa. XV. The seasonal prevalence of ectoparasites on impala and cattle in the northern Transvaal 
    Horak, Ivan Gerard; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    The prevalence of ectoparasites on a total of 36 impala (Aepyceros melampus) slaughtered monthly from February 1975 to February 1976 and a total of 24 cattle slaughtered monthly from March 1976 to March 1977 in the Nylsvley ...
  • The presence of Paneth cells confirmed in the pig 
    Myer, M.S.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    The presence of Paneth cells, traditionally believed to be absent in the crypts of the domestic pig, Sus scrofa (Linnaeus,1758), has been confirmed in this report. The cells were found approximately 104 cm from the pyloric ...
  • Sequential development of the liver lesions in new-born lambs infected with Rift Valley fever virus. II. Ultrastructural findings 
    Coetzer, Jacobus A.W.; Ishak, K.G.; Calvert, R.C.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    The macroscopic and microscopic lesions in livers of new-born lambs experimentally infected with Rift Valley fever virus and killed at various intervals between 6 - 53 h after inoculation, were described in a previous ...
  • Prozones and delayed reactions in the rose bengal test for bovine brucellosis 
    Herr, S.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Jordaan, E.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by The Government Printer, Pretoria, 1982)
    A prozone and a somewhat delayed reaction were found to be present in the rose bengal test (RBT) when sera, delayed in transport, gave rise to false negative results. A postulate as to the mechanisms possibly involved ...