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1967 Onderstepoort Journal of Veterinary Research, Volume 34, 1967: Recent submissions
Now showing items 1-20 of 27
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(Pretoria : The Government Printer, 1967)
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(Pretoria : The Government Printer, 1967)
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(Pretoria : The Government Printer, 1967)The experimental results show clearly, that low temperatures have a delaying effect upon the development of the free-living stages of B. decoloratus, B. microplus and M. winthemi. The tolerance of eggs to low temperatures ...
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(Pretoria : The Government Printer, 1967)
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(Pretoria : The Government Printer, 1967)A single dose of alum-precipitated epsilon toxoid (APT) produces only a transitory immunity when given to fully susceptible sheep. A maximal immunity response is brought about by two injections each containing 90 Lf toxoid. ...
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(Pretoria : The Government Printer, 1967)Ecbovirus type SA-l, a bovine enterovirus, has been purified and crystallized and its chemical composition, physical characteristics and morphology studied. The virus particles have a mean diameter of 230Å, a sedimentation ...
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(Pretoria : The Government Printer, 1967)A locally isolated bovine enterovirus designated echovirus SA-I was found to belong to the Weybridge serotype 134. The growth characteristics of the virus in a number of cell types were studied. Its replicative cycle and ...
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(Pretoria : The Government Printer, 1967)Five immunologically identical strains of virus have been isolated from naturally and experimentally produced cases of ephemeral fever, by the intracerebral inoculation of suckling mice with infective buffy coat suspension. ...
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(Pretoria : The Government Printer, 1967)
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(Pretoria : The Government Printer, 1967)The effects of cortisol acetate were studied on immature gonadotrophin treated rats, mature intact and hysterectomized cycling females, gestating and pseudopregnant subjects with pituitary implants, and mature males. ...
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(Pretoria : The Government Printer, 1967)The effects of thyra-parathyroidectomy with subsequent thyroxin replacement have been studied in two young and two mature sheep. Observations made included the effects of the operation on the absorption, excretion and ...
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(Pretoria : The Government Printer, 1967)Normal values for the various serum protein fractions of Merino sheep in South Africa have been established. Use was made of cellulose acetate membrane electrophoresis by the microzone technique and after processing the ...
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(Pretoria : The Government Printer, 1967)The use of the South African frog (Xenopus laevis) in studies on spinal neurophysiology is introduced for the study of monosynaptic reflexes. Motorneurone excitability in this species may be measured by the classical ...
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(Pretoria : The Government Printer, 1967)Necropsies were conducted on 100 hippopotami during the winter of 1964 in an area of the Kruger National Park where the continuous drought, over a period of three years, had reduced food supplies to a very low level. ...
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(Pretoria : The Government Printer, 1967)
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(Pretoria : The Government Printer, 1967)A protogynander of B. decoloratus, a protogynander "intrique" of A. hebraeum and a metagynander of A. hebraeum are described.
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(Pretoria : The Government Printer, 1967)A detailed study of the number and arrangement of papilla-like structures on the terebratorium was carried out; it is found that these can be used to differentiate between the miracidia of the two related species of ...
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(Pretoria : The Government Printer, 1967)The life cycle of Paramphistomum microbothrium Fischoeder, 1901, in experimentally infested sheep, goats and cattle was compared and discussed. It is concluded, that of these domestic ruminants, cattle are the normal ...
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(Pretoria : The Government Printer, 1967)A total of 60 spp. of fungi (of which 13 had not been reported before) representing 34 genera was isolated from 39 samples of feed examined. The spp. and their frequency of isolation are tabulated. The fungi most frequently ...
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(Pretoria : The Government Printer, 1967)A review of the literature on the history of the tuberculin test and causes of non-specific reactions in cattle is given. The economic importance of the nonspecific reactor problem in South Africa is discussed. The cultural ...
Now showing items 1-20 of 27