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

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

Sort by: Order: Results:

  • Verwoerd, Daniel Wynand; De Villiers, Ethel-Michele; Tustin, R.C.; 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)
    Studies on the transmission of jaagsiekte (ovine pulmonary adenomatosis) both by sub inoculation of cells of known sex and by cell homogenates into male and female lambs are reported. The results obtained indicate a ...
  • Verwoerd, Daniel Wynand; De Villiers, Ethel-Michele; Williamson, Anna-Lise; 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)
    Jaagsiekte (ovine pulmonary adenomatosis) was transmitted to new-born lambs by inoculation of the microsomal fraction of a cytoplasmic extract of cultured tumour cells or tumour tissue. Various treatments of the biologically ...
  • 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. (Published by the Government Printer, Pretoria., 1980)
    A wide variety of organisms from the environment invade the preputial cavity of rams. Various of these organisms can be isolated from the deeper parts of the male genital tract, and especially from the accessory glands. ...
  • Thomson, G.R. (Gavin); Peenze, I.; 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)
    Haemagglutination inhibiting antibody to porcine parvovirus was shown to be widespread in all but one of the warthog populations sampled from South Africa and Zimbabwe Rhodesia. In some instances titres as high as ≥1 /20 ...
  • 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 : Government Printer, 1980)
  • Van Wyk, J.A. (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)
    Infective larvae (L3) of a strain of benzimidazole-resistant Haemonchus contortus were stored in the gas phase of liquid nitrogen, thawed and used to infest worm-free sheep from which, in turn, larvae were cultured, frozen ...
  • Newsholme, S.J.; Tyrer, Margaret 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)
    The fungus, Cladosporium trichoides, was isolated and cultured from a lesion in the cerebellum and from smaller lesions in the liver, kidney and spleen of a dog which had a history of behavioural changes, ataxia and collapse. ...
  • Van Staden, J.J.; Van der Made, H.N.; Jordaan, E.; 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 effect of the addition of 2, 3, 5, 7 and 10% respectively of propionic acid on known numbers of bacteria added to or contained in carcass meal was examined. Escherichia coli was totally inhibited by 2% propionic acid, ...
  • Bezuidenhout, J. Dürr; Stutterheim, C.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)
    Buphagus erythrorhynchus uses 4 feeding methods-scissoring, plucking, pecking and insect catching. During the day the birds spend 68% of their time feeding, with peaks of activity during the early morning and late afternoon. ...
  • Horak, Ivan Gerard; De Vos, Valerius; Boomker, Jacob Diederik Frederik; 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 : Government Printer., 1980)
    Descriptions of the 1st, 2nd and 3rd instar larvae and the puparium of Kirkioestrus minutus are given. First instar larvae, which have not previously been described, can be distinguished from other oestrid larvae by the ...
  • Van Der Made, H.N.; Van Staden, J.J.; Du Toit, J. de V.; Jordaan, E.; Barrett, E.L.; Coetzee, J.D.; 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 pH value and the moisture, fat and protein content of abattoir by products which are commercially available in the Republic of South Africa were examined, and the total bacterial count and the extent of Salmonella, ...
  • Cameron, Colin McKenzie; 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)
    In contrast to adult sheep, 2- to 3-month-old lambs do not respond well to a single injection of Clostridium perfringens Type D oil adjuvant epsilon toxoid. This unresponsiveness can be overcome, however, by administering ...
  • Thomson, G.R. (Gavin); Gainaru, M.D.; Van Dellen, A.F.; 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)
    Although there were no obvious signs of illness following experimental infection of young warthog with African swine fever virus, the animals developed viraemias between 10²'⁴ and 10³'⁶, HD₅₀/m within the first week of ...
  • Van Wyk, J.A. (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 field strain of H. contortus, already resistant to benzimidazole anthelmintics, was also found to be slightly resistant to rafoxanide. This is apparently the first report of resistance to rafoxanide in a field strain of ...
  • Procos, J.; Labuschagne, F.J.; Van der Walt, J.G.; 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)
    Glucose turnover parameters were obtained in fed and fasted wethers, ewes and pregnant ewes in their 2nd and 3rd trimesters, using a jugular bolus injection of D-glucose-2-³H. Fasting significantly (P<0,05) reduced glucose ...
  • Van der Walt, N. T.; 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)
    Haemagglutination of bluetongue virus (BTV) was demonstrated for the first time by making use of a purified preparation of the virus. The reaction was found to be independent of variations in the pH, temperature, buffer ...
  • Boomker, Jacob Diederik Frederik; 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)
    This paper describes the light-microscopic appearance of both the erythrocytes and the thrombocytes and their developmental stages of catfish (Clarias gariepinus) and Mozambique bream (Sarotherodon mossambicus). Apart from ...
  • Potgieter, F.T.; Van Rensburg, 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. (Pretoria : The Government Printer, 1980)
    Approximately 100 adult Rhipicephalus simus from a batch known to be infected with Anaplasma marginale were used to infest an ox. Fifty male ticks were manually removed from the animal's ears 9 days after infestation. These ...
  • Begemann, G.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)
    The eggs of both Simulium nigritarse and S. adersi took up to 13 days to hatch in water at a temperature of 25 °C. The larvae of S. nigritarse required a minimum of 20 days and those of S.adersi a minimum of 17 days to ...
  • Cameron, Colin McKenzie; Pienaar, Lorraine; Vermeulen, Aletta S.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. (Pretoria : The Government Printer, 1980)
    Active and passive protection studies in mice using sheep antisera revealed that the immunological relationship among Pasteurella multocida Type A strains could not be correlated with their serological relationship as ...