Apparent and standardized ileal nutrient digestibility of broiler diets containing varying levels of raw full-fat soybean and microbial protease

Table 7 Effects of protease supplementation of diets containing raw soybean on the ileal flow (g/kg of FI) of undigested crude protein and amino acids (mg/g) at day 24

RFFS¹(g/kg)	Protease (PROT/kg)	CP	Indispensable amino acids									Dispensable amino acids
RFFS¹(g/kg)	Protease (PROT/kg)	CP	His	Arg	Thr	Lys	Met	Val	Ile	Leu	Phe	Ser	Gly	Ala	Pro
0	0	41.30	0.96	1.47	2.06	1.97	0.28	2.32	1.86	3.30	1.89	2.26	2.94	2.21	2.82
	15,000	38.50	0.87	1.40	1.95	1.75	0.24	2.05	1.65	2.88	1.67	2.11	2.82	1.96	2.63
45	0	43.60	1.01	1.56	2.22	2.09	0.26	2.47	2.02	3.52	2.03	2.49	3.03	2.34	2.99
	15,000	40.60	1.02	1.56	2.23	2.03	0.30	2.46	1.99	3.50	1.97	2.49	3.02	2.29	2.93
75	0	65.30	1.12	1.82	2.36	2.33	0.31	2.78	2.30	3.99	2.28	2.71	3.26	2.53	3.11
	15,000	55.60	1.09	1.70	2.35	2.15	0.30	2.68	2.20	3.90	2.16	2.65	3.24	2.51	3.16
SEM		0.9	0.02	0.05	0.04	0.05	0.01	0.06	0.05	0.10	0.05	0.05	0.04	0.06	0.06
Main effects
0		39.90^b	0.92^b	1.43^b	2.01^b	1.86^b	0.26	2.19^c	1.75^c	3.09^c	1.78^c	2.18^b	2.88^b	2.09^b	2.72^b
45		42.10^b	1.01^b	1.56^a	2.22^a	2.06^a	0.28	2.46^b	2.01^b	3.51^b	2.00^b	2.49^a	3.03^b	2.32^ab	2.96^ab
45		60.50^a	1.10^a	1.76^a	2.35^a	2.24^a	0.30	2.73^a	2.25^a	3.94^a	2.22^a	2.68^a	3.25^a	2.52^a	3.14^a
	0	49.10	1.03	1.61	2.22	2.11	0.29	2.52	2.05	3.60	2.05	2.48	3.07	2.34	2.95
	15,000	45.90	0.99	1.55	2.17	2.00	0.27	2.40	1.96	3.43	1.95	2.42	3.03	2.27	2.93
Sources of variation
RFFS		***	**	*	**	**	NS	***	***	***	***	***	***	**	**
Protease		NS	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS
RFFS x protease		NS	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS	NS

^a,b,cMeans bearing uncommon superscript within a column are significantly different at NS = non-significant; *P < 0.05; **P < 0.01; ***P < 0.001; ¹RFFS = raw full-fat soybean (SBM was replaced by RFFS at zero, 15 and 25%, equivalent to zero, 45 and 75 g/kg of diet, respectively); SEM = standard error of means. A 15000 PROT/kg = 15,000 units of protease/kg of diet, equivalent to 200 mg of protease / kg of diet

ISSN: 2055-0391