Browsing 1998 Onderstepoort Journal of Veterinary Research, Volume 65, 1998 by Type "Article"

Browsing 1998 Onderstepoort Journal of Veterinary Research, Volume 65, 1998 by Type "Article"

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  • Tice, G.A.; Bryson, N.R.; Stewart, C.G.; Du Plessis, B.; De Waal, D.T.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    A two-year field study was conducted in four communal grazing areas in South Africa. Sera were collected from young cattle (6-18 months old) in these areas during the winters of 1991 to 1993. The sera were tested for ...
  • Khalil, L.F.; Mashego, S.N.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    Three different species of the genus Macrogyrodactylus Malmberg, 1957, collected from the gills and skin of Clarias gariepinus (Burchell , 1822) from the Middle Letaba Dam and Mokgoma-Matlala Dam in South Africa were ...
  • Van Vuuren, Moritz; Venter, Estelle Hildegard; Steinel, A.; Parrish, C.R.; Truyen, U.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    Canine parvovirus (CPV) is a significant pathogen of domestic and free-ranging carnivores all over the world . It suddenly appeared at the end of the 1970s and most likely emerged as a variant of the well known feline ...
  • Anonymous; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
  • Anonymous; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
  • Anonymous; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
  • Thompson, P.N. (Peter N.); Van Amstel, S.R.; Henton, Marijke M.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    The clinical efficacy of enrofloxacin was tested in calves with experimentally induced pneumonic pasteurellosis. A strain of Pasteurella haemolytica, biotype A, serotype 1 (P haemolytica A 1), which had been isolated ...
  • Mushi, E.Z.; Isa, J.F.W.; Chabo, R.G.; Binta, M.G.; Kapaata, R.W.; Ndebele, R.T.; Chakalisa, K.C.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    Coccidia oocysts were demonstrated in the faeces of 53 (about 34 %) of 156 apparently healthy ostrich chicks. Young chicks had the highest proportion of infestation while those more than 9 weeks old had no oocysts at all ...
  • Nyaga, P.N.; Kimoro, C.O.; Bebora, Lilly C.,; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    The immune responses of two S. gallinarum strains, L46 and CN 180, were compared in 15-week-old cockerels. The humoral and cell-mediated immune responses were assayed by means of the indirect haemagglutination test (IHA) ...
  • Fitzgerald, S.L.; Greyling, J.M.; Bragg, R.R. (Robert Richard); Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    Twenty five freeze-dried isolates of Ornithobacterium rhinotracheale were used for the determination of minimum inhibitory concentrations (MIC) against the antibiotic fosfomycin (Fosbac, produced by Bedson SA, consisting ...
  • Bastos, Armanda D.S.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    Genomic amplification of the VP1 gene of SAT-type foot-and-mouth disease virus (FMDV) was performed with published and novel oligonucleotide primers. The primer pair with the highest SAT-type recognition (67 %) was identified ...
  • Bremer, C.W.; Viljoen, G.J.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    A reverse transcription polymerase chain reaction (RT-PCR), based on the gene encoding the NS2 protein of African horsesickness virus (AHSV), was developed for rapid serogroup-specific detection of AHSV. The specificity ...
  • Schoeman, J.H.; De Vos, Valerius; Van Aswegen, G.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    Immunocytochemical methods were employed to demonstrate endocrine cells, containing peptides and serotonin, in the gut of the impala. Cells immunoreactive to serotonin, somatostatin, gastrin, cholecystokinin, glucagon, ...
  • Peter, T.F.; Perry, B.D. (Brian D.), 1946-; O'Callaghan, C.J.; Medley, G.F.; Shumba, W.; Madzima, W.; Burridge, M.J.; Mahan, S.M.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    Heartwater, the tick-borne disease caused by the rickettsia Cowdria ruminantium has historically been confined to the southern and western lowvelds of Zimbabwe. Since 1986, however, cases of heartwater have been diagnosed ...
  • Horak, Ivan Gerard; Zieger, U.; Cauldwell, A.E.; Verwoerd, Daniel Wynand (Pretoria : Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    Free-living ixodid ticks were collected at monthly intervals from January to December 1996 by dragsampling the vegetation of Mtendere Game Ranch in the Chisamba District of the Central Province, Zambia. Ticks belonging ...
  • Dreyer, K.; Fourie, L.J.; Kok, D.J.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    The study was conducted in a peri-urban agricultural system at Botshabelo, a city in the south-eastern Free State. A questionnaire survey revealed that 88,5% of cattle farmers in the area experienced problems related to ...
  • Njagi, O.N.; Ndarathi, C.M.; Nyaga, P.N.; Munga, L.K.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    A total of 17 head of cattle presenting with typical "Elephant skin disease" were isolated from the rest of the herd within a beef ranch for further clinical observation. On physical examination, all the animals had ...
  • Dreyer, K.; Fourie, L.J.; Kok, D.J.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    A seroepidemiological study was conducted on 151 cattle from the Botshabelo and Thaba Nchu areas in the central Free State Province of South Africa, two areas where small scale, peri-urban cattle farming is practised. An ...
  • Boomker, Jacob Diederik Frederik; Booyse, Dirk G.; Junker, Kerstin; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    Four young Nile crocodiles (Crocodylus niloticus) were infected with infective pentastome larvae obtained from naturally infected Mozambique bream, Oreochromis mossambicus, and red-breasted bream, Tilapia rendalli swierstrai ...
  • Boomker, Jacob Diederik Frederik; Horak, Ivan Gerard; Zieger, U.; Cauldwell, A.E.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    Helminths and bot fly larvae were collected from 11 wild ungulate species on a game ranch in the Central Province of Zambia. New host-parasite records are: Calicophoron sp. from defassa waterbuck Kobus ellipsiprymnus ...