Browsing 1980 Onderstepoort Journal of Veterinary Research, Volume 47, 1980 by Title

Browsing 1980 Onderstepoort Journal of Veterinary Research, Volume 47, 1980 by Title

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  • Occurrence of Taenia solium in a Cape fur seal (Arctocephalus pusillus) 
    De Graaf, A .S.; Shaughnessy, P. D.; McCully, R.M.; Verster, Anna J.M.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by the Government Printer, Pretoria., 1980)
    The larval stage of Taenia solium was recovered from the brain, skeletal muscles, heart, lungs and liver of a Cape fur seal collected near Cape Town. This is apparently the second record of the larval stage of this cestode ...
  • The pathology of bacterial infection of the genitalia in rams 
    Jansen, B.C.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Pretoria : The Government Printer, 1980)
    Details are given of the macroscopic and histopathological changes brought about by infection of the genitalia of rams by bacteria other than Brucella ovis. Lesions of the vesiculae seminales and ampullae are described ...
  • Photosensitivity in South Africa. II. The experimental production of the ovine hepatogenous photosensitivity disease geeldikkop (Tribulosis ovis) by the simultaneous ingestion of Tribulus terrestris plants and cultures of Pithomyces chartarum containing the mycotoxin sporidesmin 
    Bath, Gareth F.; Kellerman, T. Stephanus; Van der Westhuizen, G.C.A.; Coetzer, Jacobus A.W.; Roux, Cecilia; Marasas, Walter F.O. (Walter Friedrich Otto); Minne, J.A.; Basson, P.A.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Pretoria : The Government Printer, 1980)
    The mycoflora of toxic pastures were surveyed during a number of outbreaks of ovine hepatogenous photosensitivity in South Africa. Pure cultures of several isolates were dosed to sheep, but only those of Pithomyces chartarum ...
  • Physiological age determination in female Stomoxys calcitrans Linnaeus (Diptera : Muscidae) 
    Sutherland, B.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by the Government Printer, Pretoria., 1980)
    The primary sex organs of female Stomoxys calcitrans consist of a single pair of ovaries, each containing 80-100 polytrophic ovarioles. A natural population of these females can be grouped according to age into different ...
  • Plasma progesterone in cattle. I. Development and validity of the assay 
    Terblanche, H.M.; Labuschagne, J.M.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Terb; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by the Government Printer, Pretoria., 1980)
    The development of a practical competitive protein-binding assay for plasma progesterone in cattle is described. With an intra-assay coefficient of variation of 5,46% and an interassay coefficient of variation of 14,25%, ...
  • Presence of Herpesvirus ovis DNA sequences in cellular DNA from sheep lungs affected with jaagsiekte (pulmonary adenomatosis) 
    De Villiers, Ethel-Michele; Verwoerd, Daniel Wynand; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by the Government Printer, Pretoria., 1980)
    To investigate further the possible involvement of Herpesvirus avis in the aetiology of jaagsiekte, the kinetics of re-association of viral DNA and DNA isolated from tumour tissue as well as from cell cultures derived from ...
  • Studies on Haemonchus contortus. III. Titration of Trichostrongylus axei and expulsion of 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.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by the Government Printer, Pretoria., 1980)
    Groups of Merino weaners were dosed with infective larvae of Trichostrongylus axei in numbers ranging from 20 000 - 50 000 and challenged 3 months later with 50 000 infective larvae of Haemonchus contortus. When half the ...
  • Studies on neonatal calf diarrhoea caused by rotavirus : transmission of the disease and attempted vaccination of colostrum-deprived calves 
    Prozesky, Leon; Theodoridis, A.; Els, H.J.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by the Government Printer, Pretoria., 1980)
    Mild to severe scouring could be produced in colostrum-deprived calves with tissue culture adapted rota virus and faecal material from field cases of calf diarrhoea. The faeces of experimentally infected calves contained ...
  • Studies on the physiopathology of chronic obstructive pulmonary disease in horses. I. Clinical signs 
    Littlejohn, A.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by the Government Printer, Pretoria., 1980)
    Twenty cases of chronic cough originating in the lung and associated with loss of performance were clinically examined. The physical signs observed were compared with those observed in a control series of 38 clinically ...
  • Studies on the physiopathology of chronic obstructive pulmonary disease in the horse. II. Right heart haemodynamics 
    Littlejohn, A.; Bowles, Felicity; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Pretoria : The Government Printer, 1980)
    Pressure curves obtained by cardiac catheterization of the pulmonary artery, right ventricle and right atrium of 9 horses and ponies with chronic obstructive pulmonary disease (COPD) were compared with those similarly ...
  • Studies on the physiopathology of chronic obstructive pulmonary disease in the horse. III. The intrathoracic pressure 
    Littlejohn, A.; Bowles, Felicity; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Walker, Jane B.; Verwoerd, Daniel Wynand (Published by the Government Printer, Pretoria., 1980)
    The intrathoracic pressure was determined by direct intrapleural cannulation in 17 clinically normal horses and 14 horses with chronic obstructive pulmonary disease (COPD). There were significant differences between the ...
  • Subject index 
    Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Pretoria : The Government Printer, 1980)
  • A surgical technique for the experimental reproduction of epididymitis in rams 
    Jansen, B.C.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Pretoria : The Government Printer, 1980)
    A surgical technique is described for introducing a bacterial culture into the vas deferens of a ram close to the epididymis in such a manner that the infective material spreads to the lumen of the ductus epididymidis.
  • A survey of the mosquito and Culicoides faunas at two localities in the Karoo region of South Africa with some observations on bionomics 
    Jupp, P.G.; McIntosh, B.M.; Nevill, E.M.; Steyn, P.J.J; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by the Government Printer, Pretoria., 1980)
    The mosquito and Culicoides faunas were surveyed at Bethulie and Luckhoff in the arid Karoo region, southern Orange Free State, to determine which species occurred, their relative prevalence and the effects of rainfall. ...
  • Survival and development of larvae of the common nematodes of ruminants after long-term cryopreservation and investigation of different routes of infestation 
    Van Wyk, Jan Aucamp; Gerber, H.M.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by the Government Printer, Pretoria., 1980)
    Exsheathed infective larvae (L3) of 16 species of nematodes were tested for infectivity in either sheep or cattle after they had been frozen and stored in 0,09% NaCl solution in the gas phase of liquid nitrogen for periods ...
  • A technique for the recovery of nematodes from ruminants by migration from gastro-intestinal ingesta gelled in agar : large scale application 
    Groeneveld, Hendrik T.; Van Wyk, Jan Aucamp; Gerber, H.M.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by the Government Printer, Pretoria., 1980)
    A gelled-agar technique for worm recovery was adapted to facilitate the recovery of larval and adult nematodes from the total ingesta of large numbers of sheep. The technique was also used to recover nematodes from 4 calves. ...
  • The temperature preferences of the motile stages of Stomoxys calcitrans Linnaeus (Diptera : muscidae) 
    Sutherland, B.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by the Government Printer, Pretoria., 1980)
    When adult Stomoxys calcitrans were exposed to a temperature gradient, 66% of them selected temperatures between 20,1 and 32,5°C. The larval stages preferred temperatures between 19,5 and 33,2°C. Although the differences ...
  • Tissue culture studies on a suspected lysosomal storage disease in Abyssinian cats 
    Lange, A. Lucia; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Pretoria : The Government Printer, 1980)
    Cell cultures prepared from the spleen and mesenteric lymph nodes of affected kittens were subjected to histochemical and ultrastructural studies. Macrophages in the cultures contained lipid in the cytoplasm and the ...
  • Turkey meningoencephalitis in South Africa 
    Barnard, B.J.H.; Buys, S.B.; Du Preez, J.H.; Greyling, S.P.; Venter, H.J.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Published by the Government Printer, Pretoria., 1980)
    Turkey meningo-encephalitis is a neuroparalytic disease of turkey’s first described and shown to be caused by a flavivirus in Israel. During 1978 a similar disease was observed in South Africa. In addition to the lesions ...
  • The use of faecal analyses to estimate the phosphorus intake by grazing Sheep. I. The use of pool instead of individual samples 
    Belonje, P.C.; Van den Berg, A.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M. (Published by the Government Printer, Pretoria., 1980)
    Analyses of rectal faeces of sheep for phosphorus, calcium and magnesium may be useful to indicate the mineral status of the herbage being consumed. A number of sheep should be used for each pasture, but this would entail ...