Browsing 1993 Onderstepoort Journal of Veterinary Research, Volume 60, 1993 by Issue Date

Browsing 1993 Onderstepoort Journal of Veterinary Research, Volume 60, 1993 by Issue Date

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  • Dermacentor rhinocerinus (Denny 1843) (Acari: lxodida: Ixodidae) : redescription of the male, female and nymph and first description of the larva 
    Keirans, J.E.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    Presented is a diagnosis of the male, female and nymph of Dermacentor rhinocerinus, and the first description of the larval stage. Adult Dermacentor rhinocerinus parasitize both the black rhinoceros, Diceros bicornis, ...
  • Ultrastructure of the myenteric ganglia in the rumen, reticulum, omasum and abomasum of grey, white and black Karakul lambs 
    Groenewald, Hermanus B.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    Homozygous grey and white Karakul lambs die after they have reached weaning age. This is due to a lethal gene causing digestive disturbances. Previous studies revealed that grey and white lambs have large, milk-filled ...
  • Serological evidence of equine arteritis virus in donkeys in South Africa 
    Paweska, Janusz Tadeusz; Barnard, B.J.H.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    This paper reports the first serological evidence of exposure of donkeys to equine arteritis virus. Seven hundred and thirty-four serum samples collected between 1989 and 1992 from donkeys in different areas of South ...
  • Generation of a nucleic acid probe specific for the alcelaphine herpesvirus 1 and its use for the detection of malignant catarrhal fever virus DNA in blue wildebeest calves (Connochaetes taurinus) 
    Michel, Anita Luise; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    Two WC 11 specific DNA fragments, 3 kb and 2 kb in size, respectively, were cloned and evaluated as probes for their use in diagnostic and epidemiological investigations of malignant catarrhal fever (MCF). Field specimens ...
  • Circulation of African horsesickness virus in zebra (Equus burchelli) in the Kruger National Park, South Africa, as measured by the prevalence of type specific antibodies 
    Barnard, B.J.H.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    In the Kruger National Park 75% of zebra foals are born in October-March and they lose their passive immunity against African horsesickness virus (AHSV) when they are 5-6 months old. One month later infection with different ...
  • Parasites of South African freshwater fish. III. Rhabdochona (Rhabdochona) versterae n. sp. (Nematoda: Rhabdochonidae) from the spot-tailed robber, Alestes imberi Peters 1852 
    Boomker, Jacob Diederik Frederik; Petter, A.J.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    A new species of Rhabdochona was recovered from the spot-tailed robber, Alestes imberi Peters 1852 in the Sabie River, Kruger National Park. It differs from its nearest relative, Rhabdochona moraveci Puylaert 1973 in that ...
  • The use of EDTA in the microtitration serum agglutination test in bovine brucellosis 
    Potts, A.D.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    The use of EDTA in the microtitration serum agglutination test reduced the incidence of low-titre agglutinations in sera with titres < 30 international units per ml in the complement fixation test, while not affecting ...
  • Molecular analysis of rabies-related viruses from Ethiopia 
    Mebatsion, T.; Cox, J.H.; Conzelmann, K.K.; Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Verwoerd, Daniel Wynand (Pretoria : Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    From brain samples collected from domestic animals in Ethiopia, two rabies-related viruses were isolated. According to their reactivity pattern with anti-nucleocapsid monoclonal antibodies, they were characterized as ...
  • Jackal rabies in Zimbabwe 
    Bingham, J.; Foggin, Chris M.; Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Verwoerd, Daniel Wynand (Pretoria : Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
  • Features of dog ecology relevant to rabies spread in Machakos District, Kenya 
    Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Kitala, P.M.; McDermott, J.J.; Kyule, M.N.; Cathuma, J.M.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    A random sample of households in Machakos District of Kenya was surveyed using personal interviews to determine features of dog ecology relevant to the spread of rabies. A mean of 1,35 dogs/household, a dog to person ratio ...
  • A redescription of Lipoptena binocula (Speiser 1908) (Hippoboscidae: Diptera), with notes on its biology and comparisons with the other two flies of this genus in South Africa 
    Visagie, Elize J.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    The external morphology of the adult and puparium of Lipoptena binocula are described by means of scanning electron microscopy and the morphological characteristics are compared with those of Lipoptena paradoxa and ...
  • Taxonomy and evolutionary studies on Lyssaviruses with special reference to Africa 
    Bourhy, H.; Kissi, B.; Tordo, Noel; Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    Currently, the Lyssavirus genus is composed of four serotypes and the ungrouped European bat lyssaviruses (EBL). Using previously described PCR amplification and direct sequencing methods, the N genes of 70 representative ...
  • A systematic and population genetic approach to the rabies problem in the yellow mongoose (Cynictis penicillata) 
    Taylor, P.J. (Peter John); Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    This paper reviews recent studies on the biology, systematics and population genetics of yellow mongoose populations in terms of possible implications for the epidemiology of rabies. Based on parallel studies, the existence ...
  • Fleas and lice on scrub hares (Lepus saxatilis) in South Africa 
    Horak, Ivan Gerard; Braack, L.E.O.; Louw, J.P.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    A total of 380 scrub hares (Lepus saxatilis) from 5 localities, ranging from the north-eastern Transvaal to the eastern and the south-western Cape Province of South Africa, were examined for fleas and lice. Ctenocephalides ...
  • A dog ecology study in an urban and a semi-rural area of Zambia 
    De Balogh, K.K.I.M.; Wandeler, A.I. (Alexander I.); Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Meslin, Francois-Xavier; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    Characteristics of dog populations and their accessibility for rabies vaccination were compared in an urban and a semi-rural area in Zambia. A total of 1190 households were interviewed. In the urban study area (Mutendere, ...
  • Book review 
    Verwoerd, Daniel Wynand (Pretoria : Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
  • Lice on helmeted guineafowls at five localities in South Africa 
    Horak, Ivan Gerard; Louw, J.P.; Meyer, Santa; Price, R.D.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    A total of 234 helmeted guineafowls, Numida meleagris coronata , were examined for lice at five localities in South Africa. These were the Mountain Zebra National Park in the eastern Karoo, Cape Province; the Andries ...
  • Pathogenicity and chemotherapy of Plasmodium durae in experimentally infected domestic turkeys 
    Huchzermeyer, Fritz W.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    Only 3 out of 8 South African isolates of Plasmodium durae used in 524 turkeys in 161 passages caused approximately 50% mortality, a further 3 produced approximately 10% mortality while 2 were found to be apathogenic. ...
  • SAG-2 oral rabies vaccine 
    Schumacher, C.L.; Coulon, Patrice; Lafay, F.; Benejean, J.; Aubert, M.F.A.; Barrat, J.; Aubert, A.; Flamand, Anne; Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    The live modified rabies virus vaccine strain SAG-2 was selected from SAD Berne in a two step process employing anti-rabies glycoprotein monoclonal antibodies. The first two nucleotides coding for the amino acid in ...
  • Aspects of rabies infection and control in the conservation of the African wild dog (Lycaon pictus) in the Serengeti region, Tanzania 
    Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Gascoyne, S.C.; King, A.A.; Laurenson, M.K.; Borner, M.; Schildger, B.; Barrat, J.; Verwoerd, Daniel Wynand (Pretoria : Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    Lycaon pictus is amongst the most endangered wildlife species in Africa. In 1990 rabies virus was isolated from the brain of an adult Lycaon found dead in the Serengeti region of Tanzania. One adult and six pups of the ...