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Browsing Onderstepoort Journal of Veterinary Research by Type "Article"
Now showing items 1-20 of 2253
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(Pretoria : The Government Printer, 1948)(1) The history of horsesickness in Egypt and Palestine is traced. (2) It is believed that the 1944 epizootic was started in Egypt by the introduction of one or more infected equines into the Komombo area from the South ...
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(Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2001)The 3A non-structural protein of foot-and-mouth disease viruses is a relatively conserved protein comprising 153 amino acids. Recent studies have demonstrated correlation between mutations in the 3A non-structural-protein-coding ...
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(Pretoria : The Government Printer, 1964)The pathogenicity to the respiratory tract of seven virus isolates associated with genital disease in cattle was investigated. It was shown that (1) the febrile response was very similar to that encountered after intra-nasal ...
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(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 ...
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(Published by The Government Printer, Pretoria, 1945)1. The mean effective absorptivity for solar radiation of the hairy coats of cattle was determined. It was found that the colour of the hair is the most important characteristic in effecting the total percentage of ...
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(Published jointly by the Agricultural Research Council, ARC-Onderstepoort Veterinary Institute and the Faculty of Veterinary Science, University of Pretoria., 2002)A field study (February 2000 to August 2001) was conducted on communal and commercial farms in the Eastern Cape and North-West Provinces of South Africa to detect the levels of tick resistance to commonly used acaricides. ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1997)Protocols for evaluating oral rabies vaccine baits for domestic dogs were field tested in central Mexico, after which dog-food manufacturers and suppliers to the pet-food industry were advised as to potential ingredients ...
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(Pretoria : The Government Printer, 1977)A sensitive and reproducible method permitting the estimation of 0,030-3,000 mM of free fatty acids (FFA) in plasma with a standard error of 0,006 5 was developed. The method is based on the extraction of phosphate-buffered ...
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(Published by The Government Printer, Pretoria, 1984)VERO and CER cell cultures infected with flaviviruses produce more acid than non-infected control cultures. Acid production is dependent on the presence of glucose. This phenomenon can be utilized for the titration of ...
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(Pretoria : Government Printer, 1984)It was demonstrated that skin wound infection with Histophilus ovis elicits an immune response which can protect a ram against a challenge injection of the same organism into its epididymis.
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1997)Significant increases in serum globulins (α₁ , α₂ , β and γ) were observed in mountain leopard tortoises (Geochelone pardalis) after they had been immunized with nymphal homogenates of Amblyomma marmoreum. There was a ...
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(Published by The Government Printer, Pretoria, 1979)A clinical palpation and semen smear examination of 647 rams submitted to the Regional Veterinary Laboratory during 1967 revealed that 42 (6,5%) of these animals had clinical epididymitis or orchitis, 6 (0,9%) showed other ...
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(Published by The Government Printer, Pretoria, 1979)To obtain information on the incidence and distribution of Actinobacillus seminis infection in the Republic of South Africa, a clinical and serological survey was carried out on 409 farms situated in 29 districts. All rams ...
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(Published by The Government Printer, Pretoria, 1979)Bacteriological tests were done on a large number of different strains of Actinobacillus seminis and also, repeatedly, on the same culture or on different cultures taken periodically from the same donor animal. These tests ...
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(Pretoria : The Government Printer, 1978)A total of 14 insect juvenile hormone mimics was tested for activity in Amblyomma hebraeum by exposing newly engorged larvae to filter paper impregnated with hormone mimics. The most active compounds used in this assay ...
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Addition of rabbit serum to EMJH medium improves isolation of Leptospira interrogans serovar hardjo (Published by the Government Printer, Pretoria., 1985)The addition of 2 % pooled rabbit serum to semi-solid commercial EMJH medium with EMJH enrichment and 0,5 mg of 5-fluorouracil per ml was found to enhance the growth rate and success of isolation of Leptospira interrogans ...
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(Union of South Africa : Dept. of Agriculture, 1933)The method described by Roger, Jouveaux and Plateau of administering anthelminthics in bran to horses, was found to be quite ineffective against strongyles and ascarids while the administration of Carbon bisulphide by ...
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(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1992)Several conclusions of importance to studies on the epidemiology of heartwater were drawn from an investigation in which the numbers of adult Amblyomma hebraeum ticks, to which a closed herd of Hereford cattle were exposed ...
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Adult ixodid ticks on two cattle breeds in the south-western Free State, and their seasonal dynamics (Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1996)A study was conducted to compare the species of adult ixodid ticks on Friesian and Bonsmara cattle and their seasonal dynamics. Between five and ten animals of each breed were kept on natural False Upper Karoo vegetation, ...
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(Published by the Government Printer, Pretoria., 1989)Commercially available Escherichia coli 055: B5 lipopolysaccharide was administered intravenously experimentally at a dosage of 10 µg/kg to 2 horses. Various clinical and clinico-pathological parameters were monitored ...
Now showing items 1-20 of 2253