Studies on schistosomiasis. 4. Differential staining of live and dead cercariae after immobilization with physostigmin

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Authors

Van Wyk, Jan Aucamp

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Published by the Government Printer, Pretoria

Abstract

A modified eosin technique similar to that used for differential staining of live and dead spermatozoa stained dead cercariae of Schistosoma mattheei red while those that were alive remained colourless and transparent. Prior to exposure to the dye live cercariae were immobilized with physostigmin, which was better for that purpose than five other substances tested. The lowest concentration of physostigmin to immobilize cercariae quickly and effectively was found to be 3,3 x 10-⁶ M.

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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.

Keywords

Veterinary medicine

Sustainable Development Goals

Citation

Van Wyk, JA 1973, 'Studies on schistosomiasis. 4. Differential staining of live and dead cercariae after immobilization with physostigmin’, Onderstepoort Journal of Veterinary Research, vol. 40, no. 1, pp. 23-30.