Table 2.

Effects of dietary electrolyte balance (DEB) and dissolved oxygen levels (DO) on body weight (BW) and composition in trout. DEB in mEq kg⁻¹. Parameters are expressed as g kg⁻¹, except for BW and energy, which are expressed in g and kJ g⁻¹, respectively (all as wet fish weight). 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.

Parameters	DEB 200		DEB 700
	Normoxia	Hypoxia	Normoxia	Hypoxia	SEM	DEB	DO	I
Initial BW	116	114	115	116	2.0	ns	ns	ns
Final BW	207	185	215	187	6.6	ns	**	ns
DM	299	288	296	286	3.2	ns	*	ns
Ash	21	21	21	22	0.4	ns	ns	*
Phosphorous	3.96	3.89	3.83	3.94	0.09	ns	ns	ns
Protein	174	174	175	174	2.2	ns	ns	ns
Lipid	104	97	102	92	3.0	ns	*	ns
Energy	8.2	7.8	7.9	7.6	0.15	ns	*	ns