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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  • Ultrastructure of the epithelium of the rumen, reticulum and omasum of grey, white and black Karakul lambs 
    Groenewald, Hermanus B.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    Mortalities due to digestive disturbances occur in homozygous grey and white lambs after they have reached weaning age. Milk-filled, distended rumens, due to malfunctioning of the oesophageal groove, are found 24 h after ...
  • Molecular epidemiology of lyssaviruses : focus on the glycoprotein and pseudogenes 
    Badrane, Hassan; Tordo, Noel; Sacramento, Debora; Bourhy, Herve; 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 use of the polymerase chain reaction and sequencing of portions of lyssavirus glycoprotein and pseudogenes are discussed in attempts to better understand the epidemiology of rabies in Africa, the Americas and Europe.
  • Rhipicephalus zambeziensis unlikely to transmit foot-and-mouth disease virus 
    Thomson, G.R. (Gavin); Blouin, E.; Potgieter, F.T.; Van Vuuren, C.DeW.J; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    The potential of the ixodid tick, Rhipicephalus zambeziensis, was investigated as a vector in the transstadial transmission of the foot-and-mouth disease virus by feeding nymphae on viraemic (log 1,0-4,0 TCID₅₀/ml) cattle. ...
  • Lymphocyte blast transformation responses and restriction fragment length analysis in the cheetah 
    Spencer, J.A.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    An extensive genetic and physiological analysis of the cheetah by O'Brien et al. (1983; 1985; 1987) indicated that the cheetah showed monomorphism at the major histocompatability complex. This led O'Brien (1985) to propose ...
  • Rhipicephalus exophthalmos sp. nov., a new tick species from southern Africa, and redescription of Rhipicephalus oculatus Neumann, 1901, with which it has hitherto been confused (Acari: lxodida: Ixodidae) 
    Horak, Ivan Gerard; Keirans, J.E.; Walker, Jane B.; Heyne, Heloise; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    Rhipicephalus exophthalmos sp. nov., a species which has in the past been confused with Rhipicephalus oculatus Neumann, 1901, is described and illustrated from laboratory-reared specimens. Preferred hosts for the adults ...
  • Wildlife rabies in perspective 
    Wandeler, A.I. (Alexander I.); Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    Populations of a number of species of the orders Carnivora and Chiroptera maintain independent rabies epidemics in different parts of the world. However, in large parts of Africa, Asia, and Latin America, rabid dogs ...
  • Recombinant rabies vaccines : efficacy assessment in free-ranging animals 
    Rupprecht, Charles Edward; Hanlon, C.A.; Niezgoda, M.; Buchanan, J.R.; Diehl, D.; Koprowski, H.; Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    With the advancement of recombinant DNA techniques, a number of potent biologicals are available for the oral vaccination of free-ranging animals. Once oral immunogenicity and vaccine safety have been demonstrated, efficacy ...
  • Rhipicephalus aquatilis sp. nov. (Acari: Ixodidae), a new tick species parasitic mainly on the sitatunga, Tragelaphus spekei, in East and Central Africa 
    Walker, Jane B.; Keirans, J.E.; Pegram, R.G.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    This tick, originally referred to as Rhipicephalus species Ill by Yeoman & Walker (1967), was first collected from a sitatunga, Tragelaphus spekei, and then occasionally from cattle, in Tanzania. Further collections, mostly ...
  • Rabies in bat-eared foxes in South Africa 
    Thomson, G.R. (Gavin); Meredith, C.D.; Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    Rabies in bat-eared foxes was first recognized in South Africa in 1955 and is likely to have been derived from canine rabies introduced to South Africa in 1950. Since then it has become established in this species in the ...
  • Prevalence of antibodies against some equine viruses in zebra (Zebra burchelli) in the Kruger National Park, 1991-1992 
    Paweska, Janusz Tadeusz; Barnard, B.J.H.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    The presence of antibodies against equine encephalosis virus (EEV) and equid herpesvirus 1 and 4 in zebra in the Kruger National Park (KNP) was demonstrated. The ability of zebra to maintain immunity against EEV is ...
  • Rabies in southern Africa 
    Swanepoel, Robert; Barnard, B.J.H.; Meredith, C.D.; Bishop, G.C.; Foggin, Chris M.; Hubschle, Otto J.B.; Bruckner, Gideon K.; 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 first confirmed outbreak of rabies in Africa, believed to have followed the importation of an infected dog from England in 1892, occurred in the eastern Cape Province of South Africa, and was brought under control ...
  • Dog ecology in eastern and southern Africa - implications for rabies control 
    Perry, B.D. (Brian D.), 1946-; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    With an apparent decline in rabies vaccination coverage in dog populations in many parts of eastern and southern Africa, consideration should be given to more effective targeting of rabies vaccination to protect those ...
  • Monoclonal antibody characterization of South African field isolates of Haemophilus paragallinarum 
    Verschoor, J.A. (Jan Adrianus), 1953-; Bragg, R.R. (Robert Richard); Coetzee, L.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    A total of 27 different isolates of Haemophilus paragallinarum were made from chickens between June 1991 and December 1992. All of these isolates were examined by ELISA, by means of a locally produced panel of three ...
  • Rabies virus antigenicity : an overview 
    Coulon, Patrice; Lafay, Florence; 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)
  • Oral rabies vaccination of jackals : progress in Zimbabwe 
    Bingham, J.; Perry, B.D. (Brian D.), 1946-; King, A.A.; Schumacher, C.L.; Aubert, M.; Kappeler, A.; Foggin, Chris M.; Hill, F.W.G.; Aubert, A.; Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    Work on the development of an oral vaccination system for jackals is underway at the Veterinary Laboratory (Diagnostics and Research Branch), Zimbabwe. It is anticipated that the system will be used to control the large ...
  • Subject index 
    Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Anonymous; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
  • The use of the GENETRAK Escherichia coli probe kit for the detection of three atypical E. coli isolates 
    Davis, A.J.; Bragg, R.R. (Robert Richard); Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    A commercially available E. coli probe kit was used to test 1 lactose negative E. coli isolate and 2 hydrogen sulphide-producing E. coli isolates. The isolates were confirmed as E. coli by means of the API system. The ...
  • Canine rabies 
    Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Fekadu, M.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    Dog rabies is still epizootic in most countries of Africa, Asia and South America and in these countries dogs are responsible for most human deaths from the disease. The incubation period in dogs may vary from one week ...
  • The delivery of oral rabies vaccines to dogs : an African perspective 
    Perry, B.D. (Brian D.), 1946-; Wandeler, A.I. (Alexander I.); Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    Dog rabies control relies principally on the mass immunization of dogs in order to achieve population immunity levels sufficient to inhibit rabies transmission. In Africa, such high levels of population immunity are rarely ...
  • Biology of the black-backed jackal Canis mesomelas with reference to rabies 
    McKenzie, Andrew Alec; Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Verwoerd, Daniel Wynand (Pretoria : Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    The black-backed jackal is represented in rabies records from southern Africa and is suspected of playing an important role in the disease in this region. The basic biology of the species suggests that it does have certain ...