Browsing 2002 Onderstepoort Journal of Veterinary Research, Volume 69, 2002 by Type "Article"

Browsing 2002 Onderstepoort Journal of Veterinary Research, Volume 69, 2002 by Type "Article"

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  • 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 ...
  • Occurrence of concurrent trypanosomosis, theileriosis, anaplasmosis and helminthosis in Friesian, Zebu and Sahiwal cattle in Uganda 
    Magona, Joseph W.; Mayende, J.S.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 epidemiological investigation was conducted on farms in Tororo and Soroti districts of Uganda from January to February 2000 to determine the cause of reported persistent mortality of cattle. Blood and faecal material ...
  • 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 ...
  • An overview of the eradication of Brucella melitensis from KwaZulu-Natal 
    Emslie, Forbes Richard; Nel, J.R.; 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)
    Brucella melitensis is a Gram-negative bacterium whose primary hosts are goats and sheep. Like the other Brucella spp., with the exception of Brucella ovis, it is not particularly host specific as it is pathogenic for a ...
  • Parasitological prevalence of bovine trypanosomosis in Kindo Koisha district, Wollaita zone, south Ethiopia 
    Kidanemariam, Awoke; Hadgu, K.; Sahle, 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)
    A cross sectional survey to determine the distribution and prevalence of trypanosomosis was conducted in Kindo Koisha district, in the Wollaita zone in southern Ethiopia. A total of 1008 adult cattle was examined at eight ...
  • 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 ...
  • Redescription of some Spauligodon spp. and Parapharyngodon spp., and of Skrjabinodon mabuyae (Sandground, 1936) Inglis, 1968 (Pharyngodonidae: Oxyuroidea) from insectivorous South African lizards 
    Boomker, Jacob Diederik Frederik; Hering-Hagenbeck, S.F.B.N.; Petter, A.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)
    As part of a study on the helminth parasites of South African lizards several species of saurians were collected from localities in the North West Province, the Northern Province, Mpumalanga Province and Gauteng ...
  • Redescription of some Thelandros and Tachygonetria spp. (Pharyngodonidae: Oxyuroidea) from the omnivorous plated lizard, Gerrhosaurus validus validus A. Smith, 1849 in South Africa 
    Boomker, Jacob Diederik Frederik; Hering-Hagenbeck, S.F.B.N.; Petter, A.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)
    Thelandros schusteri Hering-Hagenbeck, 2001, Thelandros luciusi Hering-Hagenbeck, 2001, Thelandros boomkeri Hering-Hagenbeck, 2001, Tachygonetria bainae Hering-Hagenbeck, 2001, Tachygonetria chabaudi Hering-Hagenbeck, 2001 ...
  • 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 ...
  • 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, ...
  • 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 ...
  • 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 ...
  • Strategic control of gastrointestinal nematodes of sheep in the highlands of central Kenya 
    Maingi, N.; Otieno, R.O.; Gichohi, V.M.; Weda, E.H.; 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 effectiveness of anthelmintic treatments given 3 weeks after the onset of rains to control gastrointestinal nematodes in sheep in the highlands of central Kenya was investigated. The study was carried out on a farm ...
  • 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)
  • A survey on the occurrence of resistance to anthelmintics of gastrointestinal nematodes of goats in Mozambique 
    Boomker, Jacob Diederik Frederik; Atanasio, A.; Sitoe, C.; 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 survey to study the extent of anthelmintic resistance was conducted in Maputo and Gaza, two of the ten provinces of Mozambique, during February and March 1999. A total of 12 flocks, six in Maputo and six in Gaza, was ...
  • Teratogenicity of a mutagenised Rift Valley fever virus (MVP 12) in sheep 
    Hunter, P.; Erasmus, B.J.; Vorster, J.H. (Jan Harm); 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 5-fluorouracil mutagenised Rift Valley fever virus strain, which was shown to be attenuated and immunogenic in cattle and sheep, was evaluated for its ability to cause teratogenic effects in pregnant sheep. A group of ...
  • Validation of an indirect enzyme-linked immunosorbent assay for the detection of antibody against Brucella abortus in cattle sera using an automated ELISA workstation 
    Paweska, Janusz Tadeusz; Prozesky, Leon; Potts, A.D.; Harris, H.J.; Smith, S.J.; Viljoen, Gerrit Johannes; Dungu, B.; Brett, O.L.; Bubb, 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)
    An automated indirect enzyme-linked immunosorbent assay (I-ELISA) for the serological diagnosis of bovine brucellosis was developed and validated in-house. A total of 4803 cattle sera from South Africa ( n=3 643), Canada ...
  • Virulence of South African isolates of Haemophilus paragallinarum. Part 1: NAD-dependent field isolates 
    Bragg, R.R. (Robert Richard); 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 virulence of four South African field isolates of NAD-dependent Haemophilus paragallinarum, representing the four serovars known to occur in that country, was investigated. During this study an alternative challenge ...
  • Virulence of South African isolates of Haemophilus paragallinarum. Part 2: Naturally occurring NAD-independent field isolates 
    Bragg, R.R. (Robert Richard); 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)
    Naturally occurring NAD-independent variants of Haemophilus paragallinarum, which have been isolates from poultry showing clinical signs of infectious coryza, were used to determine their virulence using a newly developed ...
  • Virulence of South African isolates of Haemophilus paragallinarum. Part 3: Experimentally produced NAD-independent isolate 
    Taole, M.; Albertyn, J.; Van Heerden, E.; Bragg, R.R. (Robert Richard); 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 NAD-dependent isolate 46 (C-3) of Haemophilus paragallinarum, which was previously demonstrated to be of high virulence, was transformed to NAD independence using a plasmid isolated from a naturally occurring NAD-independent ...