Browsing Onderstepoort Journal of Veterinary Research by Title

Browsing Onderstepoort Journal of Veterinary Research by Title

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  • Microclimatic effect on vertical migration of Haemonchus contortus and Haemonchus placei third-stage larvae on irrigated Kikuyu pasture 
    Groeneveld, Hendrik T.; Krecek, R.C.; Hartman, R.; Thorne, A.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1995)
    The influence of microclimate on numbers of third-stage larvae of Haemonchus contortus and Haemonchus placei in four strata of irrigated Kikuyu pasture was assessed. On 36 different, interspersed days three replicates of ...
  • The micromorphology of the apocrine glands of the intermandibular region of the steenbok (Raphicerus campestris) 
    Cohen, Marlene; Gerneke, W.H.; De Kock, V.E.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Pretoria : The Government Printer, 1978)
    The histological structure of the newly-discovered intermandibular glandular region in male and female steenbok is described. This region consists of enlarged sebaceous and apocrine glands which secrete a substance used ...
  • The micromorphology of the glands of the infra-orbital cutaneous sinus of the steenbok (Raphicerus campestris) 
    Gerneke, W.H.; Cohen, Marlene; De Kock, V.E.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B. (Pretoria : The Government Printer, 1978)
    The infra-orbital cutaneous sinus produces a black secretion which is the combined secretion of melanaceous, branched, alveolar, sebaceous and enlarged, coiled apocrine glands. The micromorphology of these glands is described ...
  • Micromorphology of the skin (epidermis, dermis, subcutis) of the dog 
    Schwarz, R.; Le Roux, J.M.W.; Schaller, R.; Neurand, K.; Steyn, P.J.J.; Bigalke, R.D.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B.; Cameron, Colin McKenzie; Gilchrist, Frances M.C. (Published by The Government Printer, Pretoria, 1979)
    Grossly, the skin of the dog is characterized by varying thicknesses, density of the hair coat and the implantation angle of the hairs. Multiple folds varying in shape are formed by the epidermis and the papillary layer ...
  • The microscopic vascular pattern of the ruminal wall in Ovis aries 
    Lambrechts, H.B.; Jansen, B.C. (Pretoria : The Government Printer, 1966)
    The microscopic vascular pattern of the ruminal wall of the sheep was studied by means of an India ink injection method followed by clarification in methyl salicylate. Both the epithelium and the tunica muscularis receive ...
  • Miscellaneous Investigations: gouw-ziekte; stiff sickness, or three days' sickness; internal parasites 
    Theiler, Arnold, Sir, 1867-1936; Transvaal Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1908)
  • Mites, hitherto unrecorded in South Africa, collected in Natal from fowls, pigeons, turkeys, guinea-fowls, wild birds and rabbits 
    Kaschula, V.R.; Stephan, S.A.R.; Du Toit, P.J. (Pretoria : The Government Printer, 1947)
    The occurrence of seventeen mites has been recorded apparently for the first time in South Africa. Cheyletiella parasitivorax has also been included, having been recorded only from Onderstepoort. These mites are apparently ...
  • Models for heartwater epidemiology: practical implications and suggestions for future research 
    Yonow, T.; Brewster, C.C.; Allen, J.C.; Meltzer, M.I.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
    We present a simple model of the dynamics of heartwater that we use to explore and better understand various aspects of this disease. We adapted the Ross-Macdonald model for malaria epidemiology so that we could consider ...
  • Models for regional heartwater epidemiology in a variable environment 
    Levins, R.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute ., 2000)
    A model of the epidemic dynamics of heartwater within a cattle production unit was presented by Yonow et al. (1998). Here, the model is expanded to a region consisting of several farms to study the effect of environmental ...
  • A modification of standard procedures for evaluating the relative efficacy of anthelmintics 
    Reinecke, R.K.; Snijders, A.J.; Horak, Ivan Gerard; Jansen, B.C. (Pretoria : Government Printer, 1962)
    1. The modified critical test, or so-called short-term slaughter test, was the most suitable means of assessing anthelmintic efficacy on adult Trichostrongylus spp. and O. columbianum. It has some value for O. circumcincta ...
  • Molecular analysis of bovine viral diarrhoea virus isolates from South Africa 
    Van Vuuren, Moritz; Kabongo, N.; Baule, C.; Boomker, Jacob Diederik Frederik (Pretoria : Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the University of Pretoria, Faculty of Veterinary Science, 2003)
    The presence of bovine viral diarrhoea virus in South Africa has been confirmed by several serological surveys. However, little is known about its biological properties. Twenty five isolates obtained by isolation in ...
  • 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 ...
  • 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.
  • Molecular epidemiology of rabies virus in South Africa 
    Nel, Louis Hendrik; Thomson, G.R. (Gavin); Von Teichman, B.F.; Rabies in Southern and Eastern Africa. Workshop. (1993, Pretoria, South Africa); Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1993)
    Nucleic acid sequence analysis was used to determine the phylogenetic relationships amongst rabies viruses isolated from typical canid hosts such as bat-eared fox, jackal and dog in South Africa (SA). Geographical factors ...
  • Molecular hybridization studies on the relationships between different serotypes of bluetongue virus and on the difference between the virulent and attenuated strains of the same serotype 
    Huismans, H. (Henk), 1942-; Howell, P.G.; De Kock, V.E.; De Lange, M.; Bigalke, R.D.; Howell, P.G.; Reinecke, R.K.; Walker, Jane B. (Pretoria : The Government Printer, 1973)
    Isolates of ³H-labelled messenger RNA of a number of different bluetongue virus serotypes were hybridized with saturating amounts of denatured ³²P-labelled double-stranded RNA of different serotypes. These cross-hybridization ...
  • Molineus cati n. sp. (Nematoda, Trichostrongylina, Molineoidea), a parasite of feral cats, Felis catus Linnaeus, 1758 in South Africa 
    Boomker, Jacob Diederik Frederik; Durette-Desset, M-C.; Malan, F.S.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute ., 2000)
    A new species of the genus Molineus Cameron, 1923 was recovered from feral cats, Felis catus Linnaeus, 1758, in Mpumalanga Province, South Africa. Because of a caudal bursa with rays of the 2-1-2 type, but with the ...
  • Monitoring experimental Alcelaphine Herpesvirus-1 infection in cattle by nucleic-acid hybridization and PCR 
    Michel, Anita Luise; Buchholz, G.S.; Van der Lugt, Jaco J.; Verwoerd, Daniel Wynand (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1995)
    The DNA probe SW15 derived from the laboratory-attenuated Alcelaphine Herpesvirus-1 (AHV-1) strain WC11 as well as from the polymerase chain-reaction test (Hsu, Shih, Castro & Zee 1990), was used to detect viral DNA of ...
  • 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 ...
  • Monoclonal antibody studies on rabies-related viruses 
    King, A.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)
    Rabies and rabies-related viruses are divided into four serotypes, although it has been suggested that the inclusion of European bat lyssaviruses results in six genotypes. Sixty-four rabies-related viruses were tested ...
  • Monofluoroacetic acid, the toxic principle of "gifblaar", Dichapetalum cymosum (Hook) Engl. 
    Marais, J.S.C.; Du Toit, P.J. (Pretoria : The Government Printer, 1944)
    The identity of the toxic substance of "Gifblaar", Dichapetalum cymosum, has been established to be monofluoroacetic acid. The potassium and calcium salts as well as the p-nitrobenzyl and p-bromophenacyl esters of ...