Table 1. Ingredient composition of experimental diets (as-fed basis).
| Item | Gestation diet | Lactation diet | ||
|---|---|---|---|---|
| CON1) | SDP1) | CON | SDP | |
| Ingredients (%) | 100.00 | 100.00 | 100.00 | 100.00 |
| Corn | 75.82 | 76.72 | 65.54 | 66.53 |
| Soybean meal | 21.30 | 19.40 | 31.81 | 29.82 |
| SDP | - | 1.00 | - | 1.00 |
| Limestone | 0.90 | 0.90 | 0.85 | 0.85 |
| MDCP | 1.58 | 1.58 | 1.40 | 1.40 |
| Vitamin premix2) | 0.20 | 0.20 | 0.20 | 0.20 |
| Mineral premix3) | 0.20 | 0.20 | 0.20 | 0.20 |
| Calculated chemical composition | ||||
| ME (Mcal/kg) | 3.32 | 3.32 | 3.43 | 3.43 |
| CP (%) | 15.86 | 15.82 | 19.76 | 19.72 |
| Crude fat (%) | 3.09 | 3.05 | 2.86 | 2.80 |
| Crude fiber (%) | 2.97 | 3.00 | 3.33 | 3.36 |
| NDF (%) | 8.71 | 8.78 | 10.78 | 10.81 |
| ADF (%) | 4.18 | 4.20 | 4.63 | 4.65 |
| Calcium (%) | 0.77 | 0.77 | 0.75 | 0.75 |
| Phosphorus (%) | 0.64 | 0.65 | 0.65 | 0.65 |
| Lysine (%) | 0.74 | 0.76 | 1.02 | 1.02 |
| Methionine (%) | 0.25 | 0.25 | 0.30 | 0.30 |
| Threonine (%) | 0.58 | 0.60 | 0.74 | 0.76 |
| Tryptophan (%) | 0.16 | 0.16 | 0.22 | 0.22 |
1)
CON, control sow diet based on corn and soybean meal; SDP, CON + 1% spray-dried plasma.
2)
Provided per kilogram of diet: vitamin A, 10,000 IU; vitamin D3, 2,000 IU; vitamin E, 48 IU; vitamin K3, 1.5 mg; riboflavin, 6 mg; niacin, 40 mg; D-pantothenic acid, 17 mg; biotin, 0.2 mg; folic acid, 2 mg; choline, 166 mg; vitamin B6, 2 mg; and vitamin B12, 28 μg.
3)
Provided per kilogram of diet: Fe, 90 mg from iron sulfate; Cu, 15 mg from copper sulfate; Zn, 50 mg from zinc oxide; Mn, 54 mg from manganese oxide; I, 0.99 mg from potassium iodide; Se, 0.25 mg from sodium selenite.
SDP, spray-dried plasma; MDCP, monodicalcium phosphate; ME, metabolizable energy; CP, crude protein; NDF, neutral detergent fiber; ADF, acid detergent fiber.