The transmission of louping ill by ticks (Rhipicephalus appendiculatus)

Show simple item record Alexander, R.A. Neitz, W.O.
dc.contributor.editor Du Toit, P.J. 2017-04-18T10:25:23Z 2017-04-18T10:25:23Z 2017 1935
dc.description The articles have been scanned in colour with a HP Scanjet 5590;300dpi. adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format. en_ZA
dc.description.abstract 1. Experiments conducted to demonstrate the susceptibility of horses and cattle are described. 2. The appearance of virucidal antibodies in the serum of these animals after infection is demonstrated by a technique of in vitro neutralization of virus. 3. The technique of tick feeding investigations is briefly described. 4. It is shown that- (a) larvae of R. appendiculatus will pick up infection for transmission as nymphae; (b) nymphae will pick up infection for transmission as adults; (c) the virus does not pass through the egg to the next generation; (d) infective nymphae tend to lose their infection after feeding on immune animals though some of the resulting adults may still be infective ; (e) the same occurrence was noted after feeding infective nymphae on susceptible animals but, particularly if sheep are the hosts, there is a danger of the nymphae reacquiring infection before detachment; (f) clean ticks do not acquire infection when feeding on an immune animal simultaneously with infective ticks. 5. The significance of the work is discussed. en_ZA
dc.identifier.citation Alexander, RA & Neitz, WO 1935, 'The transmission of louping ill by ticks (Rhipicephalus appendiculatus)’. Onderstepoort Journal of Veterinary Science and Animal Industry, vol. 5, no. 1, pp. 15-33. en_ZA
dc.identifier.issn 0330-2465
dc.language.iso en en_ZA
dc.publisher Pretoria : Government Printer en_ZA
dc.rights ©South Africa, Dept. of Agricultural Technical Services (original). ©University of Pretoria, Dept. of Library Services (digital). en_ZA
dc.subject Veterinary medicine en_ZA
dc.subject.lcsh Veterinary medicine -- South Africa
dc.title The transmission of louping ill by ticks (Rhipicephalus appendiculatus) en_ZA
dc.type Article en_ZA

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