Browsing 1978 Onderstepoort Journal of Veterinary Research, Volume 45, 1978 by Issue Date

Browsing 1978 Onderstepoort Journal of Veterinary Research, Volume 45, 1978 by Issue Date

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  • Parasites of domestic and wild animals in South Africa. V. Helminths in sheep on dryland pasture on the Transvaal Highveld 
    Horak, Ivan Gerard; De Kock, V.E.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (The Government Printer, Pretoria, 1978)
    The seasonal incidence of helminth infestation on a farm in the Transvaal Highveld was determined by the slaughter of tracer lambs exposed on pasture for periods of approximately 6 weeks. Haemonchus contortus, the most ...
  • An investigation into possible methods of assessing the intake of calcium and phosphorus by grazing sheep 
    Belonje, P.C.; De Kock, V.E.; 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, 1978)
    A study was made, over a period of 29 weeks, of the interrelationship between calcium (Ca) and phosphorus (P) levels while monitoring those of magnesium (Mg) in ovine bone, soft tissues, faeces, urine and rumen fluid as ...
  • Effects of ⁶⁰Co irradiation on Amblyomma hebraeum Koch, 1844 (Acarina : Ixodidae) 
    Spickett, A.M.; De Kock, V.E.; 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, 1978)
    The effects of ⁶⁰Co irradiation on Amblyomma hebraeum Koch, 1844 were studied by mating normal females to males irradiated to attain dosages of 0, 2, 4, 6 and 8 kilorad. The males of all 5 groups were observed mating 7 ...
  • Amicarbalide : a therapeutic agent for anaplasmosis 
    Barrowman, P.R.; Coetzer, J.A.W.; Kellerman, T.S.; De Vos, A.J.; De Kock, V.E.; 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, 1978)
    When administered subcutaneously in 2 equal daily doses at a total dosage rate of 20 mg/kg, amicarbalide was found to be an effective agent for controlling acute infections of Anaplasma marginate and A. centrale in intact ...
  • Genetic incompatibility between Boophilus decoloratus (Koch, 1844) and Boophilus microplus (Canestrini, 1888) and hybrid sterility of Australian and South African Boophilus microplus (Acarina : Ixodidae) 
    Spickett, A.M.; Malan, J.R.; De Kock, V.E.; 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, 1978)
    Virgin females of both Boophilus decoloratus and Boophilus microplus, when mated with males of the other species, subsequently produced sterile eggs. Counts of spermiophore capsules in female seminal receptacles showed ...
  • Parasites of domestic and wild animals in South Africa .XI. Helminths in cattle on natural pastures in the Northern Transvaal 
    Horak, Ivan Gerard; 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. (The Government Printer, Pretoria, 1978)
    After being exposed to infestation for 4 or 6 weeks, pairs of tracer calves were slaughtered to determine the seasonal incidence of helminth infestation in cattle on natural pasture. \ Haemonchus placei was recovered from ...
  • The micromorphology of the apocrine glands of the intermandibular region of the steenbok (Raphicerus campestris) 
    Cohen, Marlene; Gerneke, W.H.; De Kock, V.E.; 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, 1978)
    The histological structure of the newly-discovered intermandibular glandular region in male and female steenbok is described. This region consists of enlarged sebaceous and apocrine glands which secrete a substance used ...
  • The serological and immunological relationship of type strains A and D of Pasteurella multocida to field isolates from sheep 
    Cameron, Colin McKenzie; Engelbrecht, Maria M.; 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. (The Government Printer, Pretoria, 1978)
    Investigations with antisera prepared in rabbits and sheep and active immunity experiments in mice showed that strains of Pasteurella multocida which, according to the haemagglutination test, are serologically related, do ...
  • The pathology of an inherited lysosomal storage disorder of calves 
    Coetzer, Jacobus A.W.; Louw, T.A.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. (The Government Printer, Pretoria, 1978)
    The clinical symptoms, gross and histopathological, as well as the ultrastructural appearance of a condition in cross-bred Aberdeen Angus calves resembling the inherited lysosomal storage disease, α-mannosidosis, are ...
  • Observations on the pathology of canine microsporidiosis 
    McCully, R.M.; Van Dellen, A.F.; Basson, P.A.; Lawrence, J.; De Kock, V.E.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (The Government Printer, Pretoria, 1978)
    The available literature on canine microsporidiosis indicates that this disease, primarily of young dogs, is a distinct clinicopathological entity. It has been confused with canine distemper and rabies, and must be ...
  • Volatile fatty acid metabolism in sheep. 3. Diurnal variation in the contribution of ruminal propionic acid production to the whole body glucose turnover of Merino sheep fed lucerne hay twice daily 
    Van der Walt, J.G.; De Kock, V.E.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (The Government Printer, Pretoria, 1978)
    Three phases of the diurnal feeding cycle, namely, a pre-feeding phase (-2-0 h), a maximum fermentation (2-4 h) phase and a basal fermentation (8-10 h) phase, were chosen for investigation into the contribution of ruminal ...
  • Immunogenicity and pathogenicity of three South African strains of Babesia bovis in Bos indicus cattle 
    De Vos, A.J.; De Kock, V.E.; 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, 1978)
    A strain of Babesia bovis, which has been routinely used in the locally produced babesiosis vaccine for two decades and maintained by needle passage, was of low virulence and therefore safe, but it induced poor protection ...
  • Method of production of and antibody response to an oil adjuvant Bacteroides nodosus bacterin 
    Fuls, W.J.P.; Cameron, Colin McKenzie; De Kock, V.E.; 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, 1978)
    A procedure is described for the production of a highly concentrated Bacteroides nodosus bacterin. An oil adjuvant bacterin which elicited the best antibody response in rabbits produced a response in sheep which lasted for ...
  • Surgical transfer of the cysticerci of Taenia hydatigena 
    Tustin, R.C.; Verster, Anna; 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. (The Government Printer, Pretoria, 1978)
    Unattached immature cysticerci of Taenia hydatigena were transferred surgically to the peritoneal cavities of 4 sheep. Mature infective cysticerci were recovered from the recipient sheep 3 and 5, 8 months later. A fully ...
  • Proteins and free amino acids in the salivary secretion and hemolymph of the tick Amblyomma hebraeum 
    Neitz, Albert Walter Herman; Howell, C.J.; Potgieter, D.J.J.; Bezuidenhout, J. Dürr; 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. (The Government Printer, Pretoria, 1978)
    Electrophoretic and chromatographic separations of the salivary secretion of Amblyomma hebraeum showed a less complex protein pattern than that of Ornithodoros savignyi. A hyaluronidase active component was isolated. The ...
  • Production of a chicken meat infusion broth suitable for the mass production of a Haemophilus gallinarum bacterin 
    Buys, S.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. (The Government Printer, Pretoria, 1978)
    A chicken meat infusion broth was prepared by various formulations and tested in 200ℓ volumes for their suitability to support the growth of Haemophilus gallinarum. The best yield (0, 1% packed cells, or 10⁹ colony-forming ...
  • The efficacy of various insecticides against the larvae of Lucilia cuprina (Wied.), the green blowfly of sheep. I. In vitro tests using a resistant and susceptible strain 
    Viljoen, J.H.; De Kock, V.E.; 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, 1978)
    In order to determine the larvicidal action of different insecticides against both susceptible and resistant blowfly strains in the Republic of South Africa, an attempt was made to find a suitable in vitro method for ...
  • Preliminary characterization of viruses isolated from cases of epididymitis and vaginitis in cattle 
    Theodoridis, A.; De Kock, V.E.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (The Government Printer, Pretoria, 1978)
    Twelve slow-growing virus isolates propagated in tissue culture from cattle with epididymitis and vaginitis were identified as herpes viruses by virtue of their biological, physicochemical and morphological characteristics. ...
  • Parasites of domestic and wild animals in South Africa. IX. Helminths in blesbok 
    Horak, Ivan Gerard; De Kock, V.E.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (The Government Printer, Pretoria, 1978)
    Four blesbok culled in the Rietvlei Nature Reserve during May 1972 were each infested with Trichostrongylus axei and /mpalaia nudicollis. Some of these animals also harboured Haemonchus bedfordi, Haemonchus contortus, ...
  • Tumour regression in mice after treatment with extracts of the bone marrow from cattle harbouring tick-borne infections 
    King, A.C.; De Kock, V.E.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (The Government Printer, Pretoria, 1978)
    Complete regression of a transplantable fibrosarcoma of mice was induced in an average of 86% of animals receiving repeated subcutaneous injections of an extract of the bone marrow from cattle harbouring Babesia parasites. ...