Browsing 2002 Onderstepoort Journal of Veterinary Research, Volume 69, 2002 by Issue Date

Browsing 2002 Onderstepoort Journal of Veterinary Research, Volume 69, 2002 by Issue Date

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  • Freezing of sheep faeces invalidates Haemonchus contortus faecal egg counts by the McMaster technique 
    Van Wyk, Jan Aucamp; Van Wyk, Laetitia; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    Faecal pellets from a sheep that was artificially infected with a monoculture of Haemonchus contortus were collected over a 2-h period in the morning. In the laboratory the faeces were thoroughly mixed by hand and 48 by 1 ...
  • Apparent prevalence of dourine in the Khomas region of Namibia 
    Kumba, F.F.; Claasen, B.; Petrus, P.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    A 15-year record of the results of horse sera from the Khomas region of Namibia tested by the complement fixation test for dourine at the Central Veterinary Laboratory in Windhoek before clearing the respective animals for ...
  • Review of current problems and shortcomings in the Tanzanian animal health information system with suggestions on improvement 
    Kivaria, F.M.; Kapaga, A.M.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    Livestock diseases have always been the focus of the Tanzanian Veterinary Authorities. However, they have become more important since the formation of the World Trade Organisation and subsequent implementation of the various ...
  • The effect of three bufadienolide cardiac glycosides on contraction of isolated rat jejunum 
    Botha, C.J. (Christoffel Jacobus); Gehring, Ronette; Van Rooyen, J.M.; Venter, D.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    Three cardiac glycosides were screened for pharmacological effects on isolated rat jejunum. The contraction of rat jejunum with epoxyscillirosidin, a non-cumulative bufadienolide, and cotyledoside and tyledoside D, both ...
  • Seasonal availability of gastrointestinal nematode larvae to cattle on pasture in the central highlands of Kenya 
    Waruiru, R.M.; Weda, E.H.; Otieno, R.O.; Ngotho, J.W.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    The type and level of infective strongylid nematode larvae on pasture were monitored fortnightly from July 1995 to June 1996 in the central highlands of Kenya. The number of larvae on pasture was moderate, reaching >1200/kg ...
  • The Kumm isolate of Ehrlichia ruminantium: in vitro isolation, propagation and characterization 
    Zweygarth, Erich; Van Heerden, Henriette; Allsopp, Basil A.; Josemans, A.I.; Van Strijp, M.F.; Allsopp, M.T.E.P.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    An effective culture system for Ehrlichia (Cowdria) ruminantium comb. nov. was first established in 1985 and many stocks were subsequently isolated and propagated in vitro. A notable exception, however, was the Kumm isolate ...
  • Seasonal abundance of adult ixodid ticks infesting cattle belonging to resource-limited farmers in the north-eastern Free State Province of South Africa 
    Hlatshwayo, M.; Mbati, P.A.; Dipeolu, O.O.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    A study was undertaken to determine the seasonal abundance of the ticks infesting cattle owned by resource-limited farmers in the northeastern Free State Province of South Africa. Infestations of Boophilus decoloratus, ...
  • The prevalence and economic importance of bovine fasciolosis in Kenya - an analysis of abattoir data 
    Kithuka, J.M.; Maingi, N.; Njeruh, F.M.; Ombui, J.N.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    A retrospective study covering a period of 10 years (1990-1999) was carried out using post mortem meat inspection records at the Veterinary Department Headquarters at Kabete to determine the prevalence and economic importance ...
  • Multiplication of the V4 strain of Newcastle disease virus in Madin Derby bovine kidney cells 
    Sahle, M.; Burgess, W.G.; Kidanemariam, Awoke; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    This study describes a reproducible cell culture system that permits the growth and secondary multiplication of the V4 strain of Newcastle disease virus. Allantoic fluid, magnesium chloride and diethylaminoethyl dextran ...
  • Development of a diagnostic one-tube RT-PCR for the detection of Rift Valley fever virus 
    Nel, Louis Hendrik; Espach, Anel; Romito, M.; Viljoen, G.J.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    Diagnosis of Rift Valley fever (RVF) is based on serology and virus isolation. The disadvantages of the former include poor sensitivity, high cost, risks associated with using infectious virus as antigen, the lengthy ...
  • Seasonal abundance of four Culicoides spp. (Diptera: Ceratopogonidae) at Al-Ahsa oasis, Eastern Province, Saudi Arabia 
    Abu Elzein, E.M.E.; Hilali, M.; Al-Afaleq, A.I.; Mellor, Philip S.; Boorman, J.; Al-Atiya, S.; Al-Naiem, A.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    This report constitutes the first study of Culicoides spp. and their seasonal abundance at Al-Ahsa, the largest oasis in the Eastern Province of Saudi Arabia. New Jersey light traps were used to collect the midges at Mastock ...
  • Development of solid phase antigen for indirect ELISA for the detection of specific antibody responses to infection with Newcastle disease virus 
    Sahle, M.; Burgess, G.W.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    A simple and inexpensive method of antigen preparation by ultrafiltration was investigated using the V4 strain of Newcastle disease virus. The antigen designated XM300 was used in an indirect enzyme-linked immunosorbent ...
  • The classification of seven serotypes of equine encephalosis virus and the prevalence of homologous antibody in horses in South Africa 
    Howell, P.G.; Bosman, Anna-Mari; Coetzer, Jacobus A.W.; Guthrie, Alan John; Groenewald, Daleen; Visage, Carina W.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    Selected isolates of equine encephalosis virus were shown to have comparable viral protein profiles and to represent seven distinct serotypes, based on cross-neutralization tests. Serotype-specific virus-neutralizing ...
  • Hepatic and renal concentrations of copper and other trace elements in hippopotami (Hippopotamus amphibius L.) living in and adjacent to the Kafue and Luangwa Rivers in Zambia 
    Mwase, M.; Almli, B.; Sivertsen, T.; Musonda, M.M.; Flaoyen, A.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    Hepatic and renal concentrations of the elements arsenic, cadmium, cobalt, copper, lead, manganese, mercury, molybdenum, selenium and zinc were studied in samples collected from hippopotami from the Kafue River in the Kafue ...
  • Non-immune control of trypanosomosis: in vitro oxidative burst of PMA- and trypanosome-stimulated neutrophils of Boran and N'Dama cattle 
    Taiwo, V.O.; Adejinmi, J.O.; Oluwaniyi, J.O.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    An in vitro assay that measures the generation of superoxide anions (O₂ˉ) was used to assess the level of oxidative burst of phorbol myristate acetate (PMA) - and trypanosome-stimulated neutrophils isolated from healthy ...
  • Subject index 
    Anonymous; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
  • Description of Pelonia africana n. g., n. sp. (Pentastomida: Sebekidae) from the lungs of Pelomedusa subrufa and Pelusios sinuatus (Chelonia) in South Africa 
    Boomker, Jacob Diederik Frederik; Junker, Kerstin; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    The terrapins Pelomedusa subrufa and Pelusios sinuatus taken from a water reservoir in the Northern Province, South Africa, were examined for pentastome infections. Two immature specimens, a patent female and a mature male, ...
  • Book review 
    Anonymous; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
  • On-host ecology and off-host survival of the sheep scab mite Psoroptes ovis 
    Horak, Ivan Gerard; Meintjes, T.; Fourie, L.J.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    These studies were conducted to investigate the possible role of certain aspects of the on-host ecology and off-host survival of the sheep scab mite, Psoroptes ovis, in the dissemination of infestation. All developmental ...
  • Water absorption in relation to fermentation in the colon of the ostrich (Struthio camelus) 
    Musara, C.; Chamunorwa, Joseph Panashe; Holtug, K.; Skadhauge, E.; Boomker, Jacob Diederik Frederik (Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)
    The colon is a major site for fermentation and water absorption in the ostrich. Water absorption along the colon was evaluated and its relationship to osmolality, Na+ concentration, short chain fatty acid (SCFA) concentration ...