Table 6. Retention of protein, lipid and energy of Atlantic salmon fed control or microalga feeds for 84 days.

	1C	1L	1H	ANOVA P-value
Protein	39.5 ± 1.4	39.8 ± 0.7	36.2 ± 1.9	0.19
Lipid	66.7 ± 2.1a	64.6 ± 4.0ab	53.4 ± 3.9b	0.04
Energy	46.0 ± 1.4a	43.6 ± 1.8ab	36.7 ± 2.4b	0.01

Values are given as mean ± SEM; n = 6 replicate tanks. Different superscripts (a, b) in a row indicate statistically significant differences (P < 0.05) among groups.