Table 1.

Ingredient composition of experimental diets as-fed basis.

Ingredients, %	Phase 1 (day 1–7)	Phase 2 (day 8–21)	Phase 3 (day 22–35)
Corn	43.41	55.09	58.59
Soybean meal	25.70	22.60	19.61
Wheat bran	10.30	0.30	0.30
Wheat flour	5.00	5.00	5.00
Rapeseed meal	-	2.00	-
Canola	-	2.00	-
Corn gluten	2.90	-	-
Sesame meal	2.00	2.00	2.00
Distillers dried grains with soluble	3.00	3.00	5.00
Meat meal	2.00	3.00	3.00
Tallow	1.00	1.80	3.10
Soy oil	0.50	-	-
Limestone	1.33	1.25	1.29
Monodicalcium phosphate	0.77	0.19	0.35
Salt	0.33	0.26	0.24
Methionine	0.36	0.33	0.34
Lysine	0.83	0.63	0.67
Threonine	0.19	0.18	0.14
Choline	0.13	0.10	0.10
Vitamin premix1	0.10	0.10	0.10
Mineral premix2	0.10	0.10	0.10
Phytase 1000G3	0.05	0.07	0.07
Chromium (III) oxide4	0.20	0.20	0.20
Total	100.00	100.00	100.00
Calculated nutrient composition
Crude protein, %	21.99	20.49	18.49
Crude fat, %	4.08	4.95	6.08
Crude fiber, %	2.44	2.66	2.40
Crude ash, %	5.85	5.27	5.06
Metabolizable energy, kcal/kg	3,045	3,135	3,251
Calcium, %	0.96	0.90	0.89
Nonphytase phosphorus, %	0.45	0.43	0.42
Analyzed nutrient composition
Total phosphorus, %	0.74	0.72	0.70
Lysine	2.20	1.68	1.52
Methionine	0.69	0.63	0.60
Threonine	0.97	0.91	0.76
Tryptophan	0.26	0.23	0.21
Methionine + cysteine	1.05	0.99	0.93

¹Provided per kg of complete diet: 11,025 IU vitamin A; 1,103 IU vitamin D3; 44 IU vitamin E; 4.4 mg vitamin K; 8.3 mg riboflavin; 50 mg niacin; 4 mg thiamine; 29 mg d-pantothenic; 166 mg choline; 33 μg vitamin B12.

²Provided per kg of complete diet: 12 mg Cu (as CuSO₄•5H₂O); 85 mg Zn (as ZnSO₄); 8 mg Mn (as MnO₂); 0.28 mg I (as KI); 0.15 mg Se (as Na₂SeO₃•5H₂O).

³Phytase premix prepared by serial dilution with corn to contain 1,000 phytase units/g, provided by Easybiosystem, Seoul Feed Ltd., Seoul, Korea.

⁴The chromium oxide was added into diets as an indigestible marker which is exclusive of the total feed ingredients. The product was provided by Samchun Pure Chemical Co., Ltd., Gyeonggi, Korea.