Browsing 1970 Onderstepoort Journal of Veterinary Research, Volume 37, 1970 by Issue Date

Browsing 1970 Onderstepoort Journal of Veterinary Research, Volume 37, 1970 by Issue Date

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  • Changes in the levels of plasma electrolytes and glucose in severe artificially induced acidosis in Merino sheep 
    Procos, J.; Schubert, Annette; Briel, B.J.; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria: Government Printer, 1970)
    Severe acidosis was induced in wethers by the infusion of mineral and organic acids. No clinical signs apart from slight panting, were observed despite a fall in plasma glucose levels which occurred either spontaneously ...
  • A clinico-pathological study of bilharziasis in sheep 
    Malherbe, W.D.; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria : Government Printer, 1970)
    Six healthy sheep were artificially infested through skin exposure with graded doses of cercariae of Schistosoma mattheei Veglia & LeRoux, 1929. By means of laboratory tests the development of lesions due to the disease ...
  • The application of improved techniques to the identification of strains of bluetongue virus 
    Howell, P.G.; Kumm, N.A.; Botha, M.J.; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria : Government Printer, 1970)
    Previously the isolation and identification of strains of bluetongue virus has been tedious, so that the introduction of techniques to shorten the delay was considered highly desirable. Neutralization tests were conducted ...
  • Immune response of rabbits, mice and sheep to polyvalent Pasteurella vaccine 
    Cameron, Colin McKenzie; Smit, Gertruida; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria : Government Printer, 1970)
    A polyvalent alum-precipitated vaccine containing Pasteurella multocida (Lehmann & Neuman, 1899) types A and D and four serotypes of Pasteurella haemolytica (Newsom & Cross, 1932) produced a sound immunity in mice and sheep ...
  • Relationship of Corynebacterium pseudotuberculosis protoplasmic toxins to the exotoxin 
    Cameron, Colin McKenzie; Smit, Maria C.; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria : Government Printer, 1970)
    Corynebacterium pseudotuberculosis (Buchanan, 1911) protoplasm was separated into two toxic fractions by means of gel chromatography. Toxin neutralization tests indicated that one of the fractions is probably identical ...
  • Immune response to dead and live Eschericia coli vaccines and colostral transfer of immunity to calves and lambs 
    Cameron, Colin McKenzie; Fuls, W.J.P.; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria : Government Printer, 1970)
    Administration of a single injection of killed polyvalent Escherichia coli (Migula, 1895) vaccine to ewes and cows resulted in a marked increase in the mouse protective properties of their sera. Antibodies were effectively ...
  • Studies on the host range of Eimeria chinchillae De Vos & Van der Westhuizen, 1968 
    De Vos, A.J.; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria : Government Printer, 1970)
    A case of an Eimeria sp. with a lack of host specificity is reported. Eimeria chinchillae DeVos & Van der Westhuizen, 1968, originally described from the chinchilla, was successfully transmitted to seven other rodents, ...
  • Experimental diamidine poisoning due to commonly used babecides 
    Naude, T.W.; Basson, P.A.; Pienaar, J.G.; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria: Government Printer, 1970)
    Forty-four apparently healthy dogs and four normal cattle were given multiple therapeutic, sterilizing or higher dosages of Berenil, Phenamidine and quinoronium sulphate in order to determine the toxic effects of these ...
  • Pathogenesis of heartwater. I. Cowdria ruminantium in the lymph nodes of domestic ruminants 
    Du Plessis, J.L.; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria : Government Printer, 1970)
    The intracellular replication of Cowdria ruminantium (Cowdry, 1926) is described in reticulum cells of lymph nodes several days prior to the appearance of rickettsial colonies in vascular endothelial cells. This is ...
  • A comparative study on the efficiency of water soluble phosphates and a dry phosphate lick for sheep fed on mature grass hay 
    Myburgh, S.J.; Du Toit, J. de V.; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria : Government Printer, 1970)
    In a study with adolescent Merino sheep on a diet of mature grass hay, the supplementation with phosphates alone, either in the drinking water or as a dry lick, did not prevent loss of condition. Furthermore, in metabolism ...
  • Macromolecular synthesis in bluetongue virus infected cells. II. Host cell metabolism 
    Huismans, H. (Henk), 1942-; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria : Government Printer, 1970)
    Infection of L-cells with bluetongue virus results in inhibition of protein and deoxyribonucleic acid synthesis shortly after infection. No inhibition of ribonucleic acid synthesis is observed before 7 hours after infection. ...
  • Experimental infection of game animals with lumpy skin disease virus (prototype strain Neethling) 
    Young, E.; Basson, P.A.; Weiss, K.E.; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria : Government Printer, 1970)
    Calves of a giraffe, an impala, two buffaloes, and two adult black wildebeests were artificially infected with the Neethling type of lumpy skin disease virus. The giraffe and impala died with typical symptoms and lesions ...
  • The influence of magnesium sulphate on the absorption, excretion and retention of calcium and phosphorus by sheep fed on phosphate supplemented rations 
    Myburgh, S.J.; DuToit, ]. de V.; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria : Government Printer, 1970)
    Evidence is put [orward showing that continuous excessive intakes of magnesium sulphate by sheep, for example in dnnking water, may result in losses of calcium from the body. However, when the intakes of both these ...
  • Uterine coccidiosis of the impala caused by Eimeria neitzi spec. nov. 
    McCully, R.M.; Basson, P.A.; De Vos, Valerius; De Vos, A.J.; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria : Government Printer, 1970)
    Four cases of uterine coccidiosis showing readily-detectable macroscopic lesions were collected over a period of two years during which 451 female impalas [Aepyceros melampus (Lichtenstein, 1812)] were examined post ...
  • Intersexuality in the horse 
    Gerneke, W.H.; Coubrough, R.I.; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria : Government Printer, 1970)
    A cytogenetic and clinical study of an intersexual Arabian horse revealed it to be a genetic female but a gonadal male intersex. This corresponds in general to previously reported cases, which have been genetic females ...
  • Failure to demonstrate in vitro as opposed to in vivo transcription of the bluetongue virus genome 
    Verwoerd, Daniel Wynand; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria : Government Printer, 1970)
  • Plaque formation by African horsesickness virus and characterization of its RNA 
    Oellermann, R.A.; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria : Government Printer, 1970)
    A method of plaque assay for African horsesickness virus (AHSV) is described. Three cell lines were tested of which BHK21 was the most satisfactory. With an increase in Actinomycin D concentration, an increased inhibition ...
  • Macromolecular synthesis in bluetongue virus infected cells. I. Virus-specific ribonucleic acid synthesis 
    Huismans, H. (Henk), 1942-; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria : Government Printer, 1970)
    Both virus-specific double-stranded and single-stranded ribonucleic acid (RNA) are synthesized during infection. The single-stranded RNA is formed in a large excess of double-stranded RNA and the rate of synthesis is maximal ...
  • Immunity in heartwater : I. A preliminary note on the role of serum antibodies 
    Du Plessis, J.L.; South Africa. Dept. of Agricultural Technical Services; De Lange, M.; Reinecke, R.K.; De Kock, V.E.; Walker, Jane B.; Tustin, R.C. (Pretoria : Government Printer, 1970)
    Ammonium sulphate precipitated gamma-globulins obtained from sheep immune to Cowdria ruminantium (Cowdry, 1925) failed to protect susceptible sheep against artificial infection by this parasite, irrespective of whether the ...
  • Eimeria chinchillae De Vos & Van der Westhuizen, 1968 and other Eimeria spp. from three South African rodent species 
    De Vos, A.J.; Dobson, Lynne D.; South Africa. Dept. of Agricultural Technical Services; Tustin, R.C.; De Lange, M.; Reinecke, R.K.; Walker, Jane B.; De Kock, V.E. (Pretoria : Government Printer, 1970)
    Eimeria chinchillae De Vos & Van der Westhuizen, 1968, an organism originally described from the chinchilla and subsequently shown to be transmissible to other rodents, was found to occur naturally in Rhabdomys pumilio ...