TABLE 1.

Composition and nutrient levels of basal diets (air-dry basis, %).

Items	Diets
	0.00%	1.00%	2.00%	3.00%
Ingredients
Corn	57.57	55.49	53.32	51.19
Soybean meal	30.01	30.37	30.77	31.15
Artemisia argyi powder	0.00	1.00	2.00	3.00
Oil	0.97	1.69	2.46	3.21
Limestone	8.45	8.45	8.45	8.45
3% Premixa	3.00	3.00	3.00	3.00
Total	100.00	100.00	100.00	100.00
Nutrient levelsb
ME/(Mcal/kg)	2.75	2.75	2.75	2.75
Crude protein	17.00	17.00	17.00	17.00
Crude fiber	3.04	3.04	3.05	3.05
Calcium	3.50	3.50	3.50	3.50
Total phosphorus	0.54	0.53	0.53	0.52
Available phosphorus	0.32	0.32	0.32	0.32
Lysine	0.95	0.95	0.96	0.96
Methionine	0.36	0.36	0.36	0.36
Methionine + Cystine	0.65	0.65	0.65	0.64

^aThe premix provided the following (per kilogram of complete diet) micronutrients: VA, 6 000 IU, VD₃ 2 500 IU, VE, 25 mg, VK₃ 2.25 mg, VB₁ 1.8 mg, VB₂ 7 mg, VB₆ 4 mg, VB₁₂ 0.2 mg, d -pantothenic acid 12 mg, nicotinic acid 35 mg, biotin 0.14 mg, folic acid 0.8 mg, Cu (as copper sulfate) 11 mg, Zn (as zinc sulfate) 70 mg, Fe (as ferrous sulfate) 60 mg, Mn (as manganese sulfate) 115 mg, Se (as sodium selenite) 0.30 mg, and I (as potassium iodide) 0.4 mg.

^bNutrient levels are calculated values.