Table 6.

Effect of multi-carbohydrase and dietary CP on energy balance and growth performance from d 25 to 28.

Parameter	Main effect means				Pooled SEM	P-value
	MC		CP			MC × CP	MC	CP	Run
	No	Yes	Low	Standard
Energy balance, kJ/(kg BW0.70•d)
HP	799.6	795.5	795.2	799.9	3.830	NS	NS	NS	NS
RE	587.8	589.5	569.7	607.6	9.860	NS	NS	NS	NS
AME intake	1,387	1,385	1,365b	1,408a	10.80	NS	NS	<0.05	NS
NE intake	1,038	1,040	1,020	1,058	9.860	NS	NS	0.056	NS
REf/RE, %	46.45	47.75	49.51a	44.69b	0.000	NS	NS	<0.01	NS
Growth performance
FI/d, g (as is)	138.5a	129.4b	126.0b	141.0a	2.490	NS	<0.05	<0.001	<0.001
WG, g/d	84.31	84.22	76.37b	92.15a	2.350	NS	NS	<0.001	<0.001
FCR, g/g (as is)	1.647a	1.550b	1.660a	1.537b	0.0233	NS	<0.01	<0.001	<0.01
AMEi/WG, kJ/g	20.79	20.56	21.64a	19.70b	0.3740	NS	NS	<0.001	<0.001
NEi/WG, kJ/g	15.55	15.42	16.16a	14.81b	0.2560	NS	NS	<0.01	<0.01

MC = multi-carbohydrase; CP = crude protein; SEM = standard error of the mean; BW^0.70 = metabolic body weight; HP = heat production; RE = retained energy; AME = apparent metabolizable energy; NE = net energy; REf/RE = proportion of RE as fat per total RE; FI = feed intake; WG = weight gain; FCR = feed conversion ratio; AMEi = AME intake; NEi = NE intake.

^{a, b} Means within a row with different superscripts differ significantly (P < 0.05, Tukey Pairwise Comparison test).