Table 1.

Composition of weaning pig diets. (as fed-basis).

Item	Phase1		Phase2		Phase3
	High ZnO	Low ZnO	High ZnO	Low ZnO	High ZnO	Low ZnO
Ingredients (%)
Corn	39.32	40.04	51.67	52.39	58.48	59.18
Soybean meal	16.22	16.10	16.74	16.62	22.60	22.48
Fermented soybean meal	5.00	5.00	4.00	4.00	3.00	3.00
Spray dried plasma protein	6.00	6.00	3.00	3.00	-	-
Tallow	2.82	2.56	2.82	2.56	2.77	2.53
Lactose	12.88	12.88	7.78	7.78	3.18	3.18
Sugar	3.00	3.00	3.00	3.00	3.00	3.00
Whey protein	11.00	11.00	7.00	7.00	3.00	3.00
Monocalcium phosphate	0.88	0.88	1.08	1.08	1.15	1.15
Limestone	1.18	1.18	1.20	1.20	1.22	1.22
Salt	0.20	0.20	0.10	0.10	0.10	0.10
Methionine (99%)	0.20	0.20	0.15	0.15	0.08	0.08
Lysine	0.49	0.49	0.65	0.65	0.61	0.61
Mineral mix 1	0.20	0.20	0.20	0.20	0.20	0.20
Vitamin mix 2	0.20	0.20	0.20	0.20	0.20	0.20
Choline (25%)	0.03	0.03	0.03	0.03	0.03	0.03
Zinc oxide (80%)	0.38	0.04	0.38	0.04	0.38	0.04
Calculated value
Crude protein, %	20.00	20.00	18.00	18.00	18.00	18.00
Metabolizable energy, kcal/kg	3450	3450	3400	3400	3350	3350
Calcium, %	0.80	0.80	0.80	0.80	0.80	0.80
Phosphorus, %	0.60	0.60	0.60	0.60	0.60	0.60
Lysine, %	1.60	1.60	1.50	1.50	1.40	1.40
Methionine, %	0.48	0.48	0.40	0.40	0.35	0.35
Fat, %	4.52	4.28	4.91	4.67	5.14	4.93
Zinc oxide, ppm	3053	333	3054	334	3057	337

¹ Provided per kg of complete diet: Fe, 100 mg as ferrous sulfate; Cu, 17 mg as copper sulfate; Mn, 17 mg as manganese oxide; I, 0.5 mg as potassium iodide; and Se, 0.3 mg as sodium selenite. ² Provided per kg of complete diet: vitamin A, 10,800 IU; vitamin D3, 4000 IU; vitamin E, 40 IU; vitamin K3, 4 mg; vitamin B1, 6 mg; vitamin B2, 12 mg; vitamin B6, 6 mg; vitamin B12, 0.05 mg; biotin, 0.2 mg; folic acid, 2 mg; niacin, 50 mg; D-calcium pantothenate, 25 mg.