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With Note: |
With: Toxicity of mixtures of quinaldine sulfate and MS-222 to fish / by Verdel K. Dawson and Leif L. Marking (No. 53) -- Residues of quinaldine and MS-222 in fish following anesthesia with mixtures of quinaldine sulfate: MS-222 / by Joe B. Sills ... et al. (No. 55). |
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Bibliography Note: |
Includes bibliographical references (page 9). |
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Summary, Etc. Note: |
Abstract: Combinations of quinaldine sulfate and MS-222 were tested for their efficacy in anesthetizing 14 species of freshwater fish. The combinations induced rapid and deep anesthesia as does MS-222 and permitted long safe holding times as does quinaldine sulfate. The concentrations of the combined anesthetics needed were considerably lower than those need when MS-222 is used alone. Warmwater species generally required higher concentrations of 10:40 to 20:75 milligram/liter. Large adult fish usually required higher concentrations than smaller fish. Both compounds lower the pH of the solution and at pH's approaching 6.0 or below the combinations were much less effective. Buffering the pH back to 6.5 or higher restored the activity of the anesthetics. |