TABLE 1.

Feed ingredient and nutrient levels of experimental diets used in different phases of trial (%, as-fed basis).

Items	1–21 days	22–42 days	43–63 days
Ingredients
Corn	60.00	65.00	69.20
Soybean meal	29.00	23.40	18.50
Fish meal	1.80	–	–
Corn gluten meal	2.00	4.00	4.00
Soybean oil	1.36	3.00	2.82
L-Lysine HCl (98%)	0.07	0.18	0.15
DL-Methionine	0.20	0.09	0.13
Salt	0.28	0.27	0.27
Dicalcium phosphate	1.68	1.74	1.60
Limestone	1.18	1.12	1.11
Zeolite	1.43	0.20	1.22
Vitamin-mineral premix1	1.00	1.00	1.00
Total	100.00	100.00	100.00
Calculated composition2, %
ME/(MJ/kg)	12.13	12.55	12.97
Lysine	1.10	0.95	0.85
Methionine	0.55	0.48	0.40
Ca	1.00	0.90	0.81
TP	0.68	0.64	0.57
AP	0.45	0.40	0.34
Analyzed composition, %
CP	20.96	19.21	17.49

ME, metabolized energy; TP, total phosphorus; AP, available phosphate. ¹Provided per kilogram of complete diet: pantothenic acid, 10.9 mg; nicotinic acid, 30 mg; folic acid, 0.95 mg; biotin, 0.16 mg; vitamin A, 8,000 IU; vitamin D, 2,800 IU; vitamin E, 19 mg; vitamin K3, 3.32 mg; vitamin B1, 1.7 mg; vitamin B2, 8.2 mg; vitamin B6, 2.78 mg; vitamin B12, 0.015 mg; Mn (MnSO₄⋅H₂O), 82 mg; Zn (ZnSO₄⋅H₂O e), 68 mg; Fe (FeSO₄⋅H₂O), 81 mg; Cu (CuSO₄⋅5H₂O), 9 mg; I (KI), 0.50 mg; Se (Na₂SeO₃), 0.27 mg. ²Values were calculated from data provided by Feed Database in China (2016) except that crude protein was analyzed.