Open AccessAloysia triphylla essential oil as food additive for Rhamdia quelen – Stress and antioxidant parameters
Author(s) -
Zeppenfeld C.C.,
Saccol E.M.H.,
Pês T.S.,
Salbego J.,
Koakoski G.,
Santos A.C.,
Heinzmann B.M.,
Cunha M.A.,
Barcellos L.J.G.,
Pavanato M.A.,
Caron B.O.,
Baldisserotto B.
Publication year - 2017
Publication title -
aquaculture nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.941
H-Index - 79
eISSN - 1365-2095
pISSN - 1353-5773
DOI - 10.1111/anu.12511
Subject(s) - catfish , superoxide dismutase , catalase , glutathione , oxidative stress , thiobarbituric acid , antioxidant , biology , triglyceride , food science , fish oil , zoology , biochemistry , endocrinology , lipid peroxidation , fish <actinopterygii> , cholesterol , enzyme , fishery
We examined the effects of dietary supplementation for 21 days with different levels (0, 0.25 and 2.0 ml/kg) of the Aloysia triphylla essential oil ( EOAT ) on silver catfish ( Rhamdia quelen ). Cortisol levels were lower in fish fed EOAT at 2.0 ml/kg diet, and lactate levels were lower in those fed at both doses. Glucose, alanine aminotransferase, aspartate aminotransferase and triglyceride levels did not vary between groups. The biomarkers of oxidative stress, thiobarbituric acid‐reactive substances, lipid hydroperoxide, superoxide dismutase, catalase and non‐protein thiols, were lower in the brain, liver and muscle of fish fed EOAT at 2.0 ml EO /kg diet. Glutathione‐S‐transferase, reduced glutathione, plasma Na + , Cl − , and K + , and gill Na + /K + ‐ ATP ase and H + ‐ ATP ase did not vary between groups. Taken together, our results clearly indicate that the addition of EOAT at 2.0 ml/kg diet improves oxidative status and lowers the stress response in silver catfish.