Table 1.

Chemical composition of the commercial extruded control diet (CD) and intact seaweeds used as supplements (15 g/kg of as-is diet) during the present study.

	CD	Ascophyllum Nodosum	Palmaria Palmata	Undaria Pinnatifida	Saccharina Japonica
Dry matter (g/kg)	939	910	876	795	831
On a dry matter basis (g/kg)
Crude protein	271	51.4	142	126	117
Ether extract	164	33.5	0.77	2.65	2.83
Crude fiber	16.2	34.6	25.6	42.5	74.7
Insoluble dietary fiber	59.2	392.7	180.4	275.1	435.5
Soluble dietary fiber	18.2	156.4	167.5	53.8	115.7
Total dietary fiber	77.4	549.1	347.9	328.9	551.2
Crude ash	70.2	212	291	385	217
Acid-insoluble ash	5.37	2.19	1.09	0.49	0.30
Macrominerals (g/kg)
Ca	0.175	0.215	0.058	0.104	0.169
P	0.085	0.005	0.019	0.032	0.010
Mg	0.011	0.080	0.039	0.115	0.088
Na	0.050	0.384	0.292	0.760	0.278
K	0.030	0.088	0.470	0.386	0.224
Trace minerals (mg/kg)
Zn	166.3	46.3	18.1	25.7	57.5
Mn	42.6	12.3	58.6	5.77	4.68
Fe	158.5	161.1	249.9	133.7	54.4
Cu	12.9	n.q.	n.q.	n.q.	n.q.
Metals and other trace elements (mg/kg)
Pb		0.078	1.98	0.47	0.23
Cd		0.30	0.05	0.22	0.20
Cr		0.61	1.16	0.24	0.29
Hg		0.02	0.02	0.02	0.03
As		33.8	3.84	36.1	24.2
Al		27.0	322	33.1	23.8
Co		0.43	0.30	0.18	0.08
Ni		1.08	1.96	2.03	0.21
Se		0.06	0.18	0.21	0.08
Mo		0.84	0.64	0.29	0.17
Ag		0.05	0.20	0.01	0.01
Ti		n.q.	0.01	n.q.	n.q.
U		0.62	0.10	0.51	0.45
Sb		0.08	0.03	0.03	0.03
V		1.25	12.7	0.41	2.43

n.q.: not quantified.