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1992 Onderstepoort Journal of Veterinary Research, Volume 59, 1992: Recent submissions
Now showing items 1-20 of 40
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)Homozygous grey Karakul lambs are born with a lethal genetic factor responsible for death at weaning age. When put in a high roughage diet under field conditions they develop distended, thin-walled rumens and sand impacted ...
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(Pretoria : Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)Aegyptianella botuliformis n. sp. (Rickettsiales: Anaplasmataceae) isolated from helmeted guineafowls Numida meleagris from the Kruger National Park is described. The rickettsia occurs within a membrane-bound vacuole in ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)Several conclusions of importance to studies on the epidemiology of heartwater were drawn from an investigation in which the numbers of adult Amblyomma hebraeum ticks, to which a closed herd of Hereford cattle were exposed ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)The effect of dosing identical amounts of sodium chloride, via 2 different routes, on feed intake and water and electrolyte balance was investigated in sheep. Feed intake and plasma sodium concentrations were unaffected ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)The serological reactivity in indirect ELISA of five different bluetongue virus (BTV) serotypes (4, 10, 15, 16 & 20) was compared using polyclonal antisera raised against virus particles and an outer structural protein, ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)The skin of the red-banded rubber frog is said to secrete an unidentified toxin. Whole skin extract as well as HPLC fractions were tested for toxicity on viable, isolated cardiomyocytes. The skin extract and one of its ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)The prevalence of avian haematozoa in 826 species of birds representing 73 families of sub-Saharan birds as recorded in the literature or in the files of the International Reference Centre for Avian Haematozoa and the ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)Five sheep developed severe nervous signs after being drenched with Albizia versicolor podmaterial. Four of these sheep were treated with pyridoxine hydrochloride (a vitamin B₆) when the symptoms of toxicity became ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)A 3-fold increase in the numbers of Lyt-2⁺ T cells in the circulating blood of mice infected and reinfected with the Welgevonden stock of Cowdria ruminantium, as determined by flow cytometry, is supportive evidence that ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)Lion sera from the Kruger National Park (KNP) dating back to 1977 and from the Etosha National Park (ENP), obtained from 1989 to 1991 , have been analysed by ELISA and Western blot analyses using a genetically engineered ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)Lipoptena paradoxa Newstead, 1907 is re-described using scanning electron microscopy and its puparium is described for the first time. The distribution of the fly is restricted to the eastern half of South Africa, generally ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)A new species of Lipoptena Nitzsch, 1818 was found on springbok Antidorcas marsupialis Zimmerman, 1780 in the Cape Province and the Orange Free State, South Africa. The flies, for which the name Lipoptena annalizeae is ...
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(Pretoria : Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)A supervised veld-burn in the Sclerocarya caffra/Acacia nigrescens Savanna landscape zone in the south-eastern region of the Kruger National Park was carried out during September 1988. The effect of the fire on the free-living ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)Four to 10 Dorper sheep on each of 12 farms in the Cape Province and 3 farms in the Orange Free State were examined for adult ixodid ticks at approximately 2- to 4-weekly intervals over periods varying from 4 to 18 months, ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)Sets of four kudus were shot and examined for arthropod parasites at approximately monthly intervals from April 1981 to March 1983 in the southern part of the Kruger National Park, eastern Transvaal Lowveld. These animals ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)A total of 48 springbok, 48 gemsbok, 23 kudus and 6 giraffes were examined for ticks and lice, while 9 Burchell's zebras and 6 Hartmann's mountain zebras were examined only for ticks. Springbok and gemsbok were shot in ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)Although the histology of the intestinal tract of Crocodylus niloticus is touched on in overall studies on reptilian intestinal tract, a more comprehensive light microscopical study on this area is lacking. Specimens for ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)The leucocytozoids of ten families of Passeriformes - Estrildidae, Fringillidae, Laniidae, Nectariniidae, Passeridae, Ploceidae, Promeropidae, Pycnonotidae, Sturnidae and Zosteropidae-are reviewed. Leucocytozoon roubaudi ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)Four species of Leucocytozoon, L. caprimulgi of the Caprimulgidae (nightjars), L. marchouxi of the Columbidae (pigeons and doves), L. grusi of the Gruidae (cranes) and L. tawaki of the Spheniscidae (penguins) are re-described. ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)
Now showing items 1-20 of 40