Table 5.

Effects of dietary supplementation of non-fermented or fermented brown seaweed and seaweed fusiforme by-products on growth performance in broiler chickens¹

Items	Period (d)	Treatment2					SEM	Contrast3
		CON	BS	FBS	SF	FSF		1	2	3	4
BW (g/bird)	0	44.5	44.5	44.4	44.5	44.4	0.39	0.624	1.000	1.000	1.000
	17	498	507	480	492	481	13.1	0.534	0.533	0.100	0.474
	35	1,795	1,872	1,840	1,835	1,807	41.1	0.185	0.226	0.293	0.938
BWG (g/bird)	0 to 17	454	463	436	448	437	13.1	0.526	0.534	0.103	0.474
	18 to 35	1,222	1,321	1,324	1,287	1,278	30.8	0.004	0.088	0.875	0.785
	0 to 35	1,626	1,750	1,730	1,693	1,678	41.1	0.015	0.076	0.541	0.928
Feed intake (g/bird)	0 to 17	1,014	1,122	997	1,094	996	19.9	0.105	0.473	<0.001	0.495
	18 to 35	2,434	2,364	2,313	2,312	2,368	38.0	0.147	0.977	0.958	0.356
	0 to 35	3,356	3,437	3,265	3,345	3,304	61.9	0.795	0.677	0.101	0.302
G:F	0 to 17	0.44	0.42	0.44	0.43	0.44	0.014	0.319	0.916	0.159	0.857
	18 to 35	0.50	0.56	0.57	0.56	0.54	0.014	0.003	0.233	0.854	0.317
	0 to 35	0.48	0.51	0.53	0.51	0.51	0.012	0.036	0.286	0.367	0.440
Mortality (%)	0 to 35	6.00	1.33	0.67	2.00	0.67	0.329	<0.001	0.764	0.372	0.764

BS, brown seaweed by-product; FBS, fermented brown seaweed by-product; SF, seaweed fusiforme by-product; FSF, fermented seaweed fusiforme by-product; SEM, standard error of the mean; BW, body weight; BWG, body weight gain; G:F, ratio of gain:feed.

¹Each least square means represents 5 pens of 30 birds per pen.

²CON = Basal diet; BS = Basal diet+0.5% BS by-product; FBS = Basal diet+0.5% FBS by-product; SF = Basal diet+0.5% SF by-product; FSF = Basal diet+0.5% FSF by-product.

³1 = Control vs by-product supplement; 2 = BS by-product vs SF by-product; 3 = Non-fermented by-product vs fermented by-product; 4 = Interaction between seaweed source and fermentation.