Apps, P.J.Viljoen, H.W.Pretorius, V.Bigalke, R.D.2014-10-142014-10-1420141988Apps, PJ, Viljoen, HW & Pretorius,V 1988, 'Aggregation pheromones of the bont tick Amblyomma hebraeum : identification of candidates for bioassay', Onderstepoort Journal of Veterinary Research, vol. 55, no. 3, pp. 135-137.0330-2465http://hdl.handle.net/2263/42374The articles have been scanned in colour with a HP Scanjet 5590; 600dpi. Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.Volatiles emitted by male Amblyomma hebraeum while feeding on a rabbit were quantitatively sampled by the dynamic solvent effect and analysed by capillary gas-liquid chromatography and mass spectrometry. Changes in emissions of 2-methyl propanoic acid, benzaldehyde and 2-nitrophenol paralleled reported increases in the attractiveness of males to conspecific ticks after 4-5 days of feeding. These compounds are therefore candidates for the bioassay of pheromonal activity.en©ARC - Onderstepoort and Faculty of Veterinary Science, University of Pretoria (original). ©University of Pretoria. Dept. of Library Services (digital).Veterinary medicineVeterinary medicine -- South AfricaArticle