Abstract
The effects of tricaine methanesulfonate (MS-222), a commonly used fish anesthetic, on plasma nonesterified fatty acid levels (NEFA) were examined in rainbow trout,Oncorhynchus mykiss. Total NEFA levels declined with increasing duration of exposure to MS-222. Most of the decline in total NEFA was due to decreases in saturated fatty acids (14∶0, 16∶0 and 18∶0). The fatty acid displaying the most rapid response to exposure to MS-222 was 20∶5n−3. The lower plasma NEFA levels in anesthetized fish may be explained by depressed lipolysis in the presence of the anesthetic.
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Abbreviations
- ANOVA:
-
analysis of variance
- MS-222:
-
tricaine methanesulfonate
- NEFA:
-
nonesterified fatty acids
- pO2 :
-
partial pressure of oxygen
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Harrington, A.J., Russell, K.A., Singer, T.D. et al. The effects of tricaine methanesulfonate (MS-222) on plasma nonesterified fatty acids in rainbow trout,Oncorhynchus mykiss . Lipids 26, 774–775 (1991). https://doi.org/10.1007/BF02535630
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DOI: https://doi.org/10.1007/BF02535630