1970 Onderstepoort Journal of Veterinary Research, Volume 37, 1970

1970 Onderstepoort Journal of Veterinary Research, Volume 37, 1970

 

CONTENTS
Volume 37: Number 1
The influence of magnesium sulphate on the absorption, excretion and retention of calcium and phosphorus by sheep fed on phosphate supplemented rations S.J. Myburgh and J. de V. du Toit. 1
Cytauxzoonosis in a giraffe [Giraffa camelopardalis (Linnaeus, 1758)] in Zululand R.M. McCully, M.E. Keep and P.A. Basson 7
Parasitic and other diseases of the African buffalo in the Kruger National Park P.A. Basson, R.M. McCully, S.P. Kruger, J.W. van Niekerk, E. Young and V. de Vos. 11
Studies on the host range of Eimeria chinchillae De Vos & Van der Westhuizen, 1968 A.J. de Vos. 29
A clinico-pathological study of bilharziasis in sheep W.D. Malherbe 37
Uterine coccidiosis of the impala caused by Eimeria neitzi spec. novo R.M. McCully, P.A. Basson, V. de Vos and A.J. de Vos 45
The application of improved techniques to the identification of strains of bluetongue virus P.G. Howell, N.A. Kumm and M.J. Botha 59
Electron microscopy of Cowdria (Rickettsia) ruminantium (Cowdry, 1926) in the endothelial cells of the vertebrate host J.G. Pienaar 67
Volume 37: Number 2
Experimental infection of game animals with lumpy skin disease virus (prototype strain Neethling) E. Young, P.A. Basson and K.E. Weiss 79
Pathogenesis of heartwater. I. Cowdria ruminantium in the lymph nodes of domestic ruminants J.L. du Plesis 89
Relationship of Corynebacterium pseudotuberculosis protoplasmic toxins to the exotoxin C.M. Cameron and Maria C. Smit 97
Observations on the pathogenesis of bovine and antelope strains of Besnoitia besnoiti (Marotel, 1912) infection in cattle and rabbits P.A. Basson, R.M. McCully and R.D. Bigalke 105
Comparative study on the efficiency of water soluble phosphates and a dry phosphate lick for sheep fed on mature grass hay S.J. Myburgh and J de V du Toit 127
Plaque formation by African horsesickness virus and characterization of its RNA R.A. Oellermann 137
RESEARCH NOTE: Further observations on the ultrastructure of ephemeral fever virus G. Lecatsas 145
Volume 37: Number 3
Immunity in heartwater: I. A preliminary note on the role of serum antibodies J.L. du Plessis 147
Changes in the levels of plasma electrolytes and glucose in severe artificially induced acidosis in Merino sheep J. Procos, Annette Schubert and B.J. Briel 151
Immune response to dead and live Eschericia coli vaccines and colostral transfer of immunity to calves and lambs C.M. Cameron and W.J.P. Fuls 157
Studies on the transmission of African horsesickness H. WetzelL, E.M. Nevell and B.J. Erasmus 165
The antigenicity of Clostridium botulinum type C toxin administered per os B.C. Jansen, P.C. Knoetze and F. Visser 169
Experimental diamidine poisoning due to commonly used babecides T.W. Naude, P.A. Basson and J.G. Pienaar 173
Volume 37: Number 4
Eimeria chinchillae De Vos & Van der Westhuizen, 1968 and other Eimeria spp. from three South African rodent species A.J. de Vos and Lynne D. Dobson 185
Macromolecular synthesis in bluetongue virus infected cells. I. Virus-specific ribonucleic acid synthesis H. Huismans 191
Macromolecular synthesis in bluetongue virus infected cells. II. Host cell metabolism H. Huismans 199
Intersexuality in the horse W.H. Gerneke and R.I. Coubrough 211
Immune response of rabbits, mice and sheep to polyvalent Pasteurella vaccine C.M. Cameron and Gertruide Smit 217
RESEARCH NOTE: Failure to demonstrate in vitro as opposed to in vivo transcription of the bluetongue virus genome D.W. Verwoerd 225


Recent Submissions

  • 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)
  • 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 ...
  • 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 ...
  • 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 ...
  • 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. ...
  • 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 ...
  • Lecatsas, 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)
    Electron microscope observations on ephemeral fever virus showed that the electron-dense material was helical in structure, that probably two strands 4 nm in diameter formed a limb approx. 17 nm in diameter with one complete ...
  • Basson, P.A.; McCully, R.M.; Bigalke, R.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)
    Histopathological studies were made on cattle and rabbits, artificially infected with either proliferative organisms of low and high passage level bovine strains of Besnoitia besnoiti (Marotel, 1912) grown in tissue culture ...
  • Myburgh, S.J. (Susanna Johanna); 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 ...
  • 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, 1970-06)
    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 to ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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)
    The ultrastructure of Cowdria ruminantium was studied in thin sections of choroid plexus from experimentally infected sheep. Glutaraldehyde fixation and osmium tetroxide postfixation were used. The organism developed ...
  • 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 ...
  • McCully, R.M.; Keep, M.E.; Basson, P.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)
    Cytauxzoonosis is reported for the first time in a giraffe [Giraffa camelopardalis (Linnaeus, 1758)] that died naturally of the disease. Both histiotropic and erythrocytic parasites were found. The animal was very anaemic ...
  • Basson, P.A.; McCully, R.M.; Kruger, S.P.; Van Niekerk, J.W.; Young, E.; De Vos, Valerius; 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)
    One hundred randomly-collected buffaloes [Syncerus caffer (Sparrman, 1779)] were autopsied, and tissues and parasites were collected for histopathological studies and identification. Blood smears were prepared from 92 ...
  • 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, ...

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