Table 3.

Body-weight gain (BWG), feed intake (FI), and feed conversion ratio (FCR) of broilers fed the 7 experimental diets.

Performance parameters1	BWG, g/broiler			FI, g/broiler			FCR, g/g
	1 – 11 d	1 – 22 d	1 – 36 d	1 – 11 d	1– 22 d	1 – 36 d	1 – 11 d	1 – 22 d	1 – 36 d
CTRL	252	945	2,321	308	1,348a	3,542	1.22	1.43	1.53
Bel10	256	942	2,317	305	1,244 ab	3,506	1.19	1.32	1.51
Bel100	258	976	2,358	304	1,281 ab	3,545	1.19	1.31	1.50
Bel1000	255	950	2,379	307	1,259 ab	3,445	1.21	1.32	1.45
Eco10	249	933	2,358	303	1,268 ab	3,530	1.22	1.36	1.51
Eco100	247	902	2,278	289	1,201b	3,390	1.17	1.33	1.49
Eco1000	249	914	2,287	289	1,243b	3,429	1.16	1.35	1.50
Pooled SEM	17	45	89	16	76	128	0.06	0.10	0.05
P ANOVA (diet)	0.86	0.08	0.34	0.10	0.03	0.15	0.34	0.29	0.08
Main effects
Enzyme
Belfeed	256	956y	2,352	305y	1,261	3,499	1.20	1.32	1.49
Econase	248	916z	2,300	294z	1,234	3,450	1.18	1.35	1.50
Pooled SEM	5	15	29	5	28	41	0.02	0.04	0.01
Dose, mg/kg
10	253	937	2,327	304	1,256	3,518	1.21	1.34	1.52
100	252	939	2,318	296	1,241	3,467	1.18	1.32	1.50
1,000	252	932	2,333	298	1,246	3,437	1.19	1.34	1.47
Pooled SEM	8	22	45	8	35	62	0.02	0.04	0.02
P ANOVA
Enzyme	0.12	0.005	0.08	0.016	0.24	0.23	0.50	0.28	0.41
Dose	1.00	0.92	0.91	0.42	0.87	0.26	0.39	0.81	0.09
Enzyme × Dose	0.93	0.15	0.24	0.30	0.18	0.17	0.25	0.95	0.14

SEM = standard error of the mean.

^a,b Means within one column having different superscripts are significantly different for the effect of dietary treatment (one-way ANOVA) (P ≤ 0.05).

^y,z Means within one column having different superscripts indicate the presence of a significant difference for the main effect of type of enzyme (two-way ANOVA, control excluded from the data matrix) (P ≤ 0.05).

¹CTRL, control diet; Bel, Belfeed supplemented diet; Eco, Econase supplemented diet. Means were obtained from 8 replicate pens per treatment of 12 broilers per replicate pen.