Howell, C.J.Neitz, Albert Walter HermanPotgieter, D.J.J.Bigalke, R.D.Cameron, Colin McKenzieVerster, Anna J,M.Walker, Jane B.De Kock, V.E.2016-07-062016-07-0620161975Howell, CJ, Neitz, AWH & Potgieter, DJJ 1975, 'Some toxic, physical and chemical properties of the oral secretion of the sand tampan, Ornithodoros savignyi Audouin (1827)’, Onderstepoort Journal of Veterinary Research, vol. 42, no. 3, pp. 99-102.0330-2465http://hdl.handle.net/2263/53729The articles have been scanned in colour with a HP Scanjet 5590; 300dpi. Adobe Acroabt XI was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.Mice, exposed to the effects of the oral secretion of Ornithodorus savignyi by injection, revealed that a potent toxin is present in the secretion. Electrophoretic and chromatographic separations of the secretion showed a heterogeneous pattern of protein-like substances. Toxicity trials on these fractions showed that the toxic principle is protein in nature and fairly heat stableen©1975 ARC-Onderstepoort and Faculty of Veterinary Science, University of Pretoria (original). ©2016 University of Pretoria. Department of Library Services (digital).Veterinary medicineVeterinary medicine -- South AfricaArticle