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Updated: Jul 27, 2026

Helminth Collection and Identification from Wildlife
Published on: December 14, 2013
Protocol identification and preservation of myxozoan parasites for microscopy with silver nitrate (Klein's dry)
1Parasitology Lab, F. H. M. Division, National Bureau of Fish Genetic Resources, Lucknow, India.
Abstract:
The present study, discusses a first report of staining techniques with silver nitrate (AgNO3 ) stain for the preservation and identification of myxozoans globally. The silver nitrate stain was used to prepare permanent slide preparation of myxozoans with some adaptations made in our laboratory. Fresh air dried smear were stained with silver nitrate stain ensuing dark brown color polar capsules and light brown color of spore-wall. The stain is everlasting for years differing to other stains like Geimsa, iron-heamotoxylin Zeihl-Neelsen Blue, and trichome stains. RESEARCH HIGHLIGHTS: Stains usually fade with time and fail to disclose the morphological characters of the specimen. Present staining method helps to detect less infection in the tissue locating the myxospores. The Klein dry method (1958) is useful and suitable for long term preservation of the myxozoan slides and morphological description.
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The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
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