Table 5 Effects of dietary electrolyte balance (DEB) and dissolved oxygen levels (DO) on energy balance in trout. DEB in mEq kg⁻¹. Gross energy intake (GE); digestible energy (DE); branchial and urinary energy excretion (BUE); metabolizable energy (ME); heat production (HP); retained energy (RE) and metabolizable energy for maintenance (MEm) are expressed in kJ kg^−0.8 day⁻¹. Mean values per tank (n = 3), measured in 30 fish. Further details are provided in Methods. Pooled standard error of mean (SEM); Interaction (I); Not significant (ns) P > 0.1; *P < 0.05; **P < 0.01; ***P < 0.001.

From: Hypoxia, but not an electrolyte-imbalanced diet, reduces feed intake, growth and oxygen consumption in rainbow trout (Oncorhynchus mykiss)