Table 1.

Ingredients and composition of diets fed to broiler chickens. (Min.–vit. premix refers to “mineral–vitamin premix”.)

Items	Control	Low-ME
Ingredients
Maize grain	64.90	69.82
Soybean meal (48 % CP)	27.38	26.56
Palm oil	4.16	–
Dicalcium phosphate	1.45	1.44
Limestone	0.85	0.86
Salt	0.36	0.41
DL-methionine	0.24	0.23
L-lysine HCl	0.11	0.13
Choline Cl70	0.05	0.05
Min.–vit. premix (Arasco 0.5 %)	0.50	0.50
Nutrients${}^{*}$
ME (kcal kg${}^{-\mathrm{1}}$)	3200	3000
Dry matter (%)	89.62	89.17
Crude protein (%)	18.60	18.61
Arginine (%)	1.249	1.237
Lysine (%))	1.08	1.08
Methionine (%)	0.53	0.53
Cystine	0.31	0.32
Methionine $+$ cystine (%)	0.85	0.85
Threonine (%)	0.708	0.706
Tryptophan (%)	0.226	0.224
Valine (%)	0.867	0.869
Ether extract (%)	6.89	2.92
Linoleic acid (%)	1.916	1.642
Crude fiber (%)	2.49	2.57
Calcium (%)	0.75	0.75
Total phosphorus (%)	0.59	0.594
Available phosphorus (%)	0.38	0.38
Sodium (%)	0.16	0.179

${}^{*}$Calculated according to NRC (1994).