1990 Onderstepoort Journal of Veterinary Research, Volume 57, 1990

1990 Onderstepoort Journal of Veterinary Research, Volume 57, 1990

 

Untitled Document

CONTENTS
Volume 57: Number 1

Cryopreservation of some common nematodes of ruminants for up to 11,3 years

Van Wyk, J.A. (Jan Aucamp); Gerber, H.M.; Alves, Regina M.R. 1
Resistance of Brahman and Simmentaler cattle to Southern African ticks

Rechav, Y.; Dauth, J.; Els, D.A. 7

An immunohistochemical study of various peptide-containing endocrine cells and neurones at the equine ileocaecal junction

Kotze, Sanet H.; Van Aswegen, G. 13

Scanning electron and light microscopy of the mucosa of the equine ileocaecal junction

Soley, John Thomson; Kotze, Sanet H. 19

Udder health implications of premature bovine mammary regression. I. Clinical, subclinical and reducing-sugar changes in milk during 168 hours of suspended milking in mid-lactation

Giesecke, W.H.; Korybut-Woroniecki, P.A.; Kowalski, Z.E. 25
A light microscopic and immunocytochemical study of the gastro-intestinal tract of the ostrich (Struthio camelus L.)

Bezuidenhout, A.J. (Abraham Johannes), 1942-; Van Aswegen, G. 37

Udder health implications of premature bovine mammary regression. II. Collateral intramammary reactions in quarters milked normally during 168-hour milk stasis in opposite quarters

Giesecke, W.H.; Korybut-Woroniecki, P.A.; Kowalski, Z.E. 49

Two new species of ticks from southern Africa whose adults parasitize the feet of ungulates : Rhipicephalus lounsburyi n. sp. and Rhipicephalus neumanni n. sp. (Ixodoidea, Ixodidae)

Walker, Jane B.

57

Heat stress in dairy cattle and other livestock under southern African conditions. I. Temperature-humidity index mean values during the four main seasons

Du Preez, J.H.; Giesecke, W.H.; Hattingh, P.J. 77

Epidemiology of wildebeest-derived malignant catarrhal fever in South Africa : inability to transfer the disease with an African face fly Musca xanthomelas (Diptera: Muscidae)

Barnard, B.J.H.; Bengis, Roy G.; Voges, S.F. 89

The prehatch period and larval survival of Boophilus decoloratus (Koch, 1844) (Acarina: Ixodidae) under natural conditions in the Transvaal, South Africa

Spickett, Arthur M.; Heyne, Heloise 95

The transovarial transmission of Babesia caballi by Hyalomma truncatum

De Waal, D.T. 99

Mycobacterium fortuitum isolated from three species of fish in South Africa

Bragg, R.R. (Robert Richard); Huchzermeyer, Hildegard F.A.K.; Hanisch, M.A.M. 101
Volume 57: Number 2

Evaluation of the efficacy of anthelmintics against parafilariosis in cattle

Van Wyk, J.A. (Jan Aucamp); Groeneveld, H.T.; Carmichael, I.H. 103

Pyridoxine (a vitamin B6) and its derivative pyridoxal as treatment for Albizia versicolor poisoning in guinea-pigs

Gummow, Bruce; Erasmus, G.L. 109

Fitting the Gompertz function to dose-response data of larval tick populations

Spickett, Arthur M.; Van Ark, H. 113

A field strain of Trichostrongylus colubriformis resistant to levamisole and morantel in South Africa

Van Wyk, J.A. (Jan Aucamp); Bath, Gareth F.; Gerber, H.M.; Alves, Regina M.R. 119

On sampling tick populations : the problem of overdispersion

Petney, T.N.; Van Ark, H.; Spickett, Arthur M. 123

RESEARCH COMMUNICATIONS: The use of sensitivity discs in the identification of Campylobacter species

Ribeiro, L.M.M.; Herr, S.; Pefanis, S.M.; Gous, A.G.S. 129

RESEARCH COMMUNICATIONS: Effects of microclimatic variables on the availability and movement of third-stage larvae of Ostertagia ostertagi on herbage

Krecek, R.C.; Murrell, K.D.; Douglass, L.W. 133

RESEARCH COMMUNICATIONS: Host cellular components adhering to the tegument of schistosomes from cattle, buffalo, hippopotamus and lechwe

Kruger, F.J.; Wolmarans, C.T. 137

RESEARCH COMMUNICATIONS: Feeding habits and flight-range of blow-flies (Chrysomyia spp.) in relation to anthrax transmission in the Kruger National Park, South Afnca

Braack, L.E.O.; De Vos, Valerius 141

RESEARCH COMMUNICATIONS: The isolation and serology of Brucella melitensis in a flock of goats in central RSA

Ribeiro, L.M.M.; Herr, S.; Chaparro, F.; Van der Vyver, F.H. 143
Volume 57: Number 3

The freeze-drying of Cowdria ruminantium

Du Plessis, J.L.; Van Gas, L.; Labuschagne, F.J.; Wijma, S. 145

Concurrent babesiosis and ehrlichiosis in the dog : blood smear examination supplemented by the indirect fluorescent antibody test, using Cowdria ruminantium as antigen

Du Plessis, J.L.; Fourie, Nicole; Nel, P.W.; Evezard, D.N. 151

A comparison of haemodynamic and vasoconstrictory responses in sheep with a toxic fraction from Pachystigma pygmaeum and with the plant material

Van Der Walt, J.J.; Van Rooyen, J.M.; Lotter, A.P. 157

The detection and isolation of a paralysis toxin present in Argas (Persicargas) walkerae

Neitz, A.W.H. (Albert Walter Herman); Viljoen, G.J.; Van Wyngaardt, S.; Gothe, R.; Visser, L.; Bezuidenhout, J. Durr 163

Parasites of South African wildlife. V. A description of the males of Oesophagostomum mocambiquei Ortlepp, 1964 from warthogs, Phacochoerus aethiopicus (Pallas, 1766)

Boomker, Jacob Diederik Frederik 169

Salmonella isolated from feeds and feed ingredients during the period 1982-1988 : animal and public health implications

Durand, Anette M.; Giesecke, W.H.; Barnard, Marie-Luise; Van der Walt, Martha L.; Steyn, Helena C. 175

Heat stress in dairy cattle under southern African conditions. II. Identification of areas of potential heat stress during summer by means of observed true and predicted temperature-humidity index values

Du Preez, J.H.; Giesecke, W.H.; Hattingh, P.J.; Eisenberg, B.E. 183

A survey of annoyance of livestock by Simulium chutteri Lewis along the Orange River, South Africa (Diptera: Simuliidae)

Jordaan, Leonora C.; Van Ark, H. 189
RESEARCH COMMUNICATIONS: The use of filter paper discs impregnated with thionin acetate, basic fuchsin and thionin blue in the identification of Brucella species

Ribeiro, L.M.M.; Herr, S. 197

RESEARCH COMMUNICATIONS: Epizootology of wildebeest-derived malignant catarrhal fever : possible transmission among cows and their calves in the north-western Transvaal

Barnard, B.J.H. 201

RESEARCH COMMUNICATIONS: An attempt to improve the immunization of sheep against heartwater by using different combinations of 3 stocks of Cowdria ruminantium

Du Plessis, J.L.; Potgieter, F.T.; Van Gas, L. 205

RESEARCH COMMUNICATIONS: An efficient medium for the isolation of Trichomonas foetus

Ribeiro, L.M.M. 209
Volume 57: Number 4

An experimental Schistosoma mattheei infection in man

Wolmarans, C.T.; De Kock, K.N.; Van der Walt, M.P.K. 211

Identification of the antigenic proteins of Cowdria ruminantium

Neitz, A.W.H. (Albert Walter Herman); Rossouw, Mirinda; De Waal, D.T.; Du Plessis, J.L.; Van Gas, Letitia; Brett, Susan 215

The toxic effects on cardiac myocytes of tyledoside F, a cumulative neurotoxic cardiac glycoside isolated from Tylecodon grandiflorus

Van Rooyen, J.M.; Van der Walt, J.J. 223

The isolation and transmission of an unidentified Babesia sp. to cattle by Hyalomma truncatum Koch 1844

De Waal, D.T.; Potgieter, F.T.; Combrink, M.P.; Mason, T.E. 229

Increased pathogenicity of an Ehrlichia-like agent after passage through Amblyomma hebraeum : a preliminary report

Du Plessis, J.L. 233

Failure of an Actinomyces pyogenes vaccine to protect sheep against an intravenous challenge

Hunter, Pamela; Van der Lugt, Jaco J.; Gouws, J.J. 239

Heat stress in dairy cattle and other livestock under southern African conditions. III. Monthly temperature-humidity index• mean values and their significance in the performance of dairy cattle

Du Preez, J.H.; Hattingh, P.J.; Giesecke, W.H.; Eisenberg, B.E. 243

The pathology of experimental Lasiospermum bipinnatum (Thunb.) Druce (Asteraceae) poisoning in sheep. I. Hepatic lesions

Williams, Mark C. 249

The pathology of experimental Lasiospermum bipinnatum (Thunb.) Druce (Asteraceae) poisoning in sheep. II. Pulmonary and miscellaneous lesions

Williams, Mark C. 263

Leukoencephalomalacia in two horses induced by oral dosing of fumonisin B1

Coetzer, Jacobus A.W.; Kellerman, T. Stephanus; Marasas, Walter F.O. (Walter Friedrich Otto); Thiel, P.G.; Gelderblom, W.C.A.; Cawood, M. 269

RESEARCH COMMUNICATIONS: Overberg Research Project. IX. First stage larvae per gram (L1p.g.] of faeces : an efficient method of diagnosing nematode parasites of sheep ante mortem

Reinecke, R.K. 277

RESEARCH COMMUNICATIONS: Serological reactions to Leptospira species in buffalo (Syncerus caffer) from the Kruger National Park

Myburgh, Jan G.; Bengis, Roy G.; Bester, C.J.J.; Chaparro, F. 281

RESEARCH COMMUNICATIONS: An attempt to establish an inbred line of mice genetically resistant to Cowdria ruminantium

Du Plessis, J.L.; Meyer, E.H.H.; Van Gas, L. 283

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