Quin, J.I.Du Toit, P.J.Union of South Africa. Dept. of Agriculture2015-07-102015-07-1020151933Quin JI 1933, 'Studies on the photosensitisation of animals in South Africa. I. The action of various fluorescent dye-stuffs', Onderstepoort Journal of Veterinary Science and Animal Industry, vol. 1, no. 2, pp. 459-468.http://hdl.handle.net/2263/47889The 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.This paper records a series of attempts to produce photosensitization with fluorescent dyes, in order to study the condition in relation to "geeldikkop" in sheep. Merino sheep and goats were used. Eosin, erythrosine and bengal rose produced marked photosensitization in each case when the animal was exposed to strong sunlight. Dyestuffs of the anthracene group did not produce the condition. Of the acridine group, acriflavine produced a transitory photosensitization. Methylene blue produced the condition accompanied by haemolysis. Thionine blue and methylene violet were similar in their effects. No general icterus was observed as in "geeldikkop"en©Union of South Africa, Dept. of Agriculture (original). ©University of Pretoria, Dept. of Library Services (digital).Veterinary medicineSouth AfricaVeterinary reportsPhotosensitizationFluorescent dyesAcriflavineVeterinary medicine -- South AfricaSheep -- Diseases -- South AfricaArticle