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

Table 8 Effects of protease and RFFS supplementations on the coefficient of apparent ileal digestibility of CP and AA of broilers 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	00	0.775^b	0.818	0.905	0.762	0.848^a	0.945	0.786	0.800	0.824	0.825	0.793	0.770	0.815	0.806
	15,000	0.812^a	0.841	0.894	0.772	0.859^a	0.948	0.802	0.809	0.832	0.832	0.794	0.748	0.815	0.801
45	0	0.783^ab	0.815	0.888	0.755	0.838^ab	0.946	0.762	0.771	0.801	0.807	0.761	0.712	0.779	0.777
	15,000	0.772^b	0.816	0.891	0.754	0.848^a	0.952	0.774	0.782	0.810	0.808	0.771	0.737	0.792	0.784
75	0	0.757^b	0.785	0.867	0.721	0.810^b	0.941	0.727	0.724	0.780	0.773	0.737	0.692	0.768	0.766
	15,000	0.776^b	0.799	0.880	0.744	0.837^ab	0.943	0.743	0.750	0.784	0.789	0.745	0.706	0.771	0.765
SEM		0.004	0..04	0.004	0..04	0.004	0..02	0.006	0.007	0.006	0.005	0.005	0.006	0.005	0.005
Main effects
0		0.794	0.830^a	0.899^a	0.767^a	0.854	0.946	0.794^a	0.805^a	0.828^a	0.828^a	0.793^a	0.759^a	0.815^a	0.804^a
45		0.778	0.816^b	0.889^ab	0.755^ab	0.843	0.949	0.768^b	0.777^b	0.805^ab	0.807^ab	0.766^b	0.725^b	0.785^b	0.781^b
75		0.766	0.792^b	0.874b	0.733^b	0.823	0.942	0.735^c	0.737^c	0.782^b	0.781^b	0.741^c	0.699^c	0.769^c	0.765^c
	0	0.772	0.806	0.887	0.746	0.832	0.944	0.758	0.765	0.802	0.802	0.764	0.725	0.787	0.783
	15,000	0.786	0.819	0.888	0.757	0.848	0.948	0.773	0.781	0.808	0.809	0.770	0.730	0.793	0.783
Sources of variation
RFFS		**	***	**	***	**	NS	***	***	***	***	***	***	***	***
Protease		*	0.08	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

^a,b,c Means bearing uncommon superscripts within a column are significantly different at NS = non-significant; *P < 0.05; **P < 0.01; ***P < 0.00; 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