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Browsing 1952 Onderstepoort Journal of Veterinary Research, Volume 25, Number 3 & 4, 1952 by Type "Article"
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Weiss, K.E.; Haig, D.A.; Alexander, R.A.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
1. The value of aureomycin in the treatment of heartwater has been
established. It is considerably more effective than the sulphonamides.
2. The minimal therapeutic dose for sheep appears to be 2•5 mg. per lb.
administered ...
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Jansen, B.C.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Pretoria : Government Printer, 1952)
(1) A new species of protozoan parasite in the Cape dassie is described for
which the name Babesia thomasi is proposed.
(2) This parasite is only slightly pathogenic for normal animals but fatal for
splenectomised Cape ...
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Polson, A.; Malherbe, W.D.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
The sera of dogs suffering from three diseases commonly encountered in
South Africa, viz. babesiosis, rickettsiosis and distemper, have been examined
electrophoretically and compared with normal sera.
Diagrams of the ...
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Veldsman, D.P.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
Leaves and stems of the plant, Pachystigma pygmaeum (gousiektebossie),
collected at Kaalfontein on 20th October, 1950, were subjected to a chemical
investigation.
Four crystalline substances were isolated: a lactone, ...
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Polson, A.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
Since there is no reason to doubt the generally accepted conception that the
concentration of ƴ globulins is an accurate index of humoral immunity, it may
be concluded that in bovines there is no transplacental ...
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Henrici, Marguerite; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
The daily march of assimilates in different fodder plants, lucerne, the Karoo
bush Pentzia incana, the Gramineae Algerian oats and Panicum minus and
Tribulus terrestris, is discussed. The assimilates were determined under ...
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Truter, G.J.; Louw, J.G.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
A method of preparing low-fluorine water solutions of superphosphate as
a source of phosphate for farm animals is described. It consists of the preparation
of a concentrated solution, sedimentation of the insoluble ...
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Groenewald, J.W.; Myburgh, S.J.; Louw, J.G.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
(1) In a continuation of the study of the digestibility of the same lucerne hay
by the same steers at different times further evidence of a period influence on
digestibility was obtained. This influence could be reduced ...
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Kaschula, V.R.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
When virus was dosed per os with virulent Newcastle disease virus and daily
examinations were made of virus in their pooled faeces, virus was recovered on
the 12th day.
No H.I antibodies were produced. The challenge ...
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Reinach, Norman; Louw, J.G.; Groenewald, J.W.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
(1) The Ca and P metabolism of two groups of young sheep, depleted of these
minerals, was investigated in a series of three balance studies.
(2) During the first 10 days on the bone meal supplemented ration, the
inorganic ...
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Myburgh, S.J.; Louw, J.G.; Groenewald, J.W.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
Employing an improved nitrogen balance method the influence of mild heat
treatment on the digestibility and biological value of a mixture of plant proteins
has been determined.
The heat treatment resulted in a small ...
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Clark, R.; Wessels, J.J.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
It has been shown that the concentration curve of sulphanilamide in the blood
of sheep after oral dosing is profoundly influenced by the basic diet and by
starvation.
In view of this and other similar findings, it is ...
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Fiedler, O.G.H.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
D.D.T. and its related compounds seem to be the only group of the new
contact insecticides against which the blue tick has not been able to build up
any resistance. Toxaphene as well as Parathion are definitely less ...
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Du Toit, R.; Fiedler, O.G.H.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
1. The more recent literature on the blowfly problem in South Africa is
reviewed and the general conclusions regarding control measures discussed.
2. The larvicidal properties of a number of the new synthetic insecticides
for ...
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Kaschula, V.R.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
The use is described of Beaudette's Roakin strain live virus intra-ocularly
on fowls previously vaccinated with an aluminium hydroxide adsorbed formalinized
chick embryo vaccine. Good response to this combination was ...
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Louw, P.G.J.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
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Sterne, Max; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
The efficiency of Muir's capsule stain could be much increased by adding a
surface-active agent (CTAB) to the primary carbol-fuchsin stain, and by using
0•1 per cent. alkaline methylene blue as a counter stain. Heating ...
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Jansen, B.C.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Pretoria : The Government Printer, 1952)
The presence of Leucocytozoon in three and Haemoproteus in two members of the family Columbidae is recorded.
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Jansen, B.C.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
(1) The presence of Eperythrozoon parvum in a splenectomised pig at
Onderstepoort is recorded.
(2) Preliminary studies on the transmission of this parasite suggest that
Haematopinus suis may be a vector.
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Van Drimmelen, G.C.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)