Browsing 1977 Onderstepoort Journal of Veterinary Research, Volume 44, 1977 by Issue Date

Browsing 1977 Onderstepoort Journal of Veterinary Research, Volume 44, 1977 by Issue Date

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  • Negative staining of a non-haemadsorbing strain of African swine fever virus 
    Els, H.J.; Pini, 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. (Pretoria : The Government Printer, 1977)
    Since the application of negative staining, preceded by fixation, prevents the disruption and distortion of the capsid of the African swine fever virus, improved contrast and evaluation of the appearance and size of virus ...
  • The taxonomic position of Clostridium botulinum Type C 
    Jansen, B.C.; Knoetze, 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. (The Government Printer, Pretoria, 1977)
    Experimental evidence is produced to justify abandoning the practice of subdividing Clostridium botulinum Type C into type Cα and type Cβ.
  • The life cycle of the two-host tick Rhipicephalus evertsi evertsi Neumann, 1897, under laboratory conditions (Acarina : Ixodidae) 
    Londt, J.G.H.; Van der Bijl, Eleanore B.; 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, 1977)
    The life cycle of Rhipicephalus evertsi evertsi Neumann, 1897, is discussed under the following headings: larval feeding; larval drop; nymphal feeding; nymphal drop; nymphal moulting; adult feeding; adult drop; preoviposition ...
  • Neurological symptoms in a cat following vaccination with high egg passage Flury rabies vaccine of chicken embryo origin 
    Barnard, B.J.H.; Geyer, H.J.; De Koker, W.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, 1977)
    The development of neurological symptoms in a cat following vaccination with the high egg passage Flury rabies vaccine and the subsequent isolation of a virus with characteristics consistent with the criteria for distinguishing ...
  • Volatile fatty acid metabolism in sheep. 2. Correlation between the volatile fatty acid production and concentration in the rumen during the course of a feeding cycle 
    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, 1977)
    Four German Merino wethers were maintained on 1600 g of lucerne hay fed twice daily. A dilute solution of a labelled volatile fatty acid (VFA) marker was infused over a period of 22 h and 6 discrete rumen fluid samples ...
  • Transplantation of cultured jaagsiekte (sheep pulmonary adenomatosis) cells into athymic nude mice 
    Du Plessis, J.L.; Verwoerd, Daniel Wynand; Meyer-Scharrer, Elizabeth; 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, 1977)
    Epithelial cells of the 15 .4 line, which were originally established from the adenomatous lung of a jaagsiekte case and which had been cultured in vitro for 22 generations, were injected subcutaneously into athymic nude ...
  • Sheep erythrocyte and bluetongue virus antibody responses of spleen cell cultures from mice 
    Carter, P.; Oellermann, R.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. (Government Printer, Pretoria, 1977)
    The optimum conditions for the culture of cells from dissociated spleens were determined. Routinely, 10⁷ cells were seeded per ml of RPMI 1640 medium supplemented with 20% pre-tested foetal calf serum. For the assay of the ...
  • A rapid method for differentiating between the infective larvae of Oesophagostomum columbianum and Chabertia ovina 
    Van Wyk, Jan Aucamp; 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, 1977)
    When freshly-collected, exsheathed infective larvae of Oesophagostomum columbianum and Chabertia ovina were frozen in liquid nitrogen and subsequently thawed, conspicuous vesicles appeared in the intestinal cells of the ...
  • Parasites of domestic and wild animals in South Africa. IV. Helminths in sheep on irrigated pasture on the Transvaal Highveld 
    Horak, Ivan Gerard; Louw, J.P.; 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, 1977)
    The seasonal incidence of helminth infestation in sheep on newly established irrigated pastures was determined by the slaughter of pairs of tracer lambs exposed for periods of approximately 33 days from October 1968 - July ...
  • Subject index 
    Anonymous; 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, 1977)
  • Disseminated protothecosis in a dog 
    Imes, G. D.; Lloyd, June C.; Brightman, M. P.; 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, 1977)
    This is a report on the clinical history and pathological lesions of a dog suffering from disseminated protothecosis due to Prototheca zopfii. Clinically, the dog was presented with bilateral conjunctivitis followed by ...
  • First report of Fascioloides magna (Bassi, 1875) in South Africa 
    Dale-Kuys, June C.; Boomker, Jacob Diederik Frederik; 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, 1977)
    Fascioloides magna from a Brahman heifer recently imported from the USA is recorded for the first time in South Africa. The pathological findings are briefly described. The possibility of this parasite becoming established ...
  • Hydrops amnii in sheep associated with hydranencephaly and arthrogryposis with Wesselsbron disease and Rift Valley fever viruses as aetiological agents 
    Coetzer, Jacobus A.W.; Barnard, B.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, 1977)
    During the 1974/75 lambing season numerous reports were received from various parts of the Republic of South Africa and South West Africa of severe abdominal distension in ewes after vaccination with the attenuated Rift ...
  • The venous drainage of the cervical vertebrae of the ox (Bos taurus L.) 
    Smuts, M.M.S. (Malie Marie Sophie), 1933-; 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, 1977)
    The venous drainage of the cervical vertebrae of the ox was studied in 16 animals (Friesland, Jersey and Guernsey cross-breeds), ranging from near full-term foetuses to adults. The extra- and intraosseous veins of the ...
  • Failure to induce in rabbits effective immunity to a mixed infection of Fusobacterium necrophorum and Corynebacterium pyogenes with a combined bacterin 
    Cameron, Colin McKenzie; Fuls, W.J.P.; 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, 1977)
    Rabbits were immunized with alum-precipitated, oil adjuvant and an untreated bacterin composed of F. necrophorum and C. pyogenes. Immunized rabbits were challenged intradermally with a mixture of F. necrophorum and C. ...
  • The pathology of Rift Valley fever. I. Lesions occurring in natural cases in new-born lambs 
    Coetzer, Jacobus A.W.; 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, 1977)
    A widespread epizootic of Rift Valley fever occurred in the Republic of South Africa and South West Africa during 1974-75. This is a report on the gross pathology of 34 new-born lambs and the histopathology of 93 new-born ...
  • Studies on Schistosomiasis. 9. Pathology of the bovine urinary tract 
    Bartsch, R.C.; Van Wyk, Jan Aucamp; 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, 1977)
    Pathological findings in the urinary tract of 40 head of cattle, experimentally or naturally infested with Schistosoma mattheei, are presented. Lesions of the ureter found in 57,5% of the cases consisted of linear granulomata ...
  • The immunological response to intact and dissociated bluetongue virus in mice 
    Carter, P.; Oellermann, R.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. (Pretoria : The Government Printer, 1977)
    Antigenic fractions of bluetongue virus were separated by ultracentrifugation in Tris-buffered CsCl gradients at pH 6, 7 or 8 and the bluetongue virus polypeptide composition of the bands isolated from these gradients was ...
  • Parasites of domestic and wild animals in South Africa. I. Oestrus ovis in sheep 
    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, 1977)
    Separate groups of 3 oestrid-free lambs were exposed to infestation on irrigated pasture for periods of approximately 33 days each over 30 months, and on dry-land pasture for approximately 42 days over a period of 18 months. ...
  • Cryopreservation of the infective larvae of the common nematodes of ruminants 
    Van Wyk, Jan Aucamp; Gerber, H.M.; Van Aardt, W.P.; 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, 1977)
    Exsheathed infective larvae (L 3) of 19 species of nematodes were tested for infectivity in either sheep or cattle after they had been frozen in 0, 9% NaCI solution, stored for a relatively short time in the gas phase of ...