Growth, stress response and free amino acid levels in Senegalese sole (Solea senegalensis Kaup 1858) chronically exposed to exogenous ammonia

Pinto, W.; Aragão, C.; Soares, Florbela; Dinis, Maria Teresa; Conceição, L. E. C.

http://hdl.handle.net/10400.1/4638

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Authors

Conceição, L. E. C.

Abstract(s)

Stressful husbandry conditions are likely to a¡ect growth and amino acid metabolism in ¢sh. In this study, chronic ammonia exposure was used to test the e¡ects of a stressor on growth and amino acid metabolism of Senegalese sole juveniles. The ¢sh were exposed for 52 days to 11.6 mg L 1 [low-TAN (L-TAN)] or 23.2 mg L 1 [high-TAN (H-TAN)] of total ammonia nitrogen (TAN), or to 0 mg L 1 (Control). Growth in L-TAN groups was slightly but signi¢- cantly di¡erent from the Control groups [relative growth rate (RGR50.35 0.13 and 0.52 0.23% day 1respectively)]. In H-TAN groups, growth was severely a¡ected (RGR50.01 0.13% day 1 ).

Keywords

Solea senegalensis Ammonia exposure Free amino acids Growth Stress response

URI

http://hdl.handle.net/10400.1/4638

Citation

Pinto, W.; Aragão, C.; Soares, F.; Dinis, M.T.; Conceição, L.E.C.Growth, stress response and free amino acid levels in Senegalese sole (Solea senegalensis Kaup 1858) chronically exposed to exogenous ammonia, Aquaculture research, 1198-1204, 38, 2007