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USGS · 1014327

Studies on the control of whirling disease (Myxosoma cerebralis)

G.L. Hoffman
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Abstract

Based on presumptive evidence of death (extrusion of polar filaments and disintegration of sporoplasm) 1.0%, 0.5%, and 0.25% calcium oxide or potassium hydroxide killed the spores of Myxosoma cerebrallis in vitro . Chlorine at 400 ppm destroyed 36% to 90% of the spores but 13% to 37% of those in the controls perished. Calcium hydroxide, ammonium chloride, sodium borate, potassium permanganate, Roccal (alkyl dimethylbenzylammonium chloride), and copper sulfate allowed survival of 38–96% of the spores, usually not much less than the rate of survival of the controls. In simulated pond testing, quicklime at 380 grams or more per square meter (3360 lbs/acre) of pond bottom prevented whirling disease in rainbow trout ( Salmo gairdneri ).

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BibTeXRIS

G.L. Hoffman. 1972. Studies on the control of whirling disease (Myxosoma cerebralis). https://doi.org/10.7589/0090-3558-8.1.49

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