Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8493072 | Aquaculture | 2018 | 7 Pages |
Abstract
After anesthetic use, there was a time effect on plasma cortisol concentration, with highest values registered after 2â¯h for all the experimental groups. EO induced a secondary increase of plasma cortisol 24â¯h after the use of this anesthetic. Hsps expression level in gills was high at 0â¯h in EO fish group, whereas hif expression increased after 2â¯h of exposure in CO fish. In hepatic tissue, gr expression increased after 24â¯h in the EO group. In head kidney tissue, expression of steroidogenesis-related genes star and cyp11b1 increased in EO fish group, whereas in the OO group, the expression of the same genes decreased at 2â¯h and 24â¯h of exposure. Although the three anesthetics generally showed similar patterns of variation of all analyzed parameters, results indicate that EO could be deleterious for welfare, whereas OO affects fish welfare to a lesser extent than CO and EO. Overall, these results show that OO could be a good anesthetic for fish based on greater effectiveness, lower optimum concentration and less impact on fish stress.
Keywords
Related Topics
Life Sciences
Agricultural and Biological Sciences
Aquatic Science
Authors
Türker Bodur, Sergi León-Bernabeu, Ana Navarro, Lluis Tort, Juan M. Afonso, Daniel Montero,