Table 2.
Percent and calculated composition of experimental diets for the metabolizability experiment (Exp. 2)
| Item | Initial (1 to 14 d) | Grower (15 to 28 d) | Finisher (29 to 42 d) |
|---|---|---|---|
| Ingredients | |||
| Corn | 59.56 | 62.22 | 64.79 |
| Soybean meal, 45% | 34.79 | 31.08 | 28.14 |
| Soybean oil | 1.42 | 2.83 | 3.45 |
| Limestone | 0.97 | 0.79 | 0.77 |
| Dicalcium phosphate | 1.83 | 1.74 | 1.59 |
| NaCl | 0.40 | 0.40 | 0.40 |
| L-Lys HCl, 78.5% | 0.322 | 0.307 | 0.260 |
| DL-Met, 98% | 0.303 | 0.255 | 0.229 |
| L-Thr, 98% | 0.112 | 0.101 | 0.067 |
| Supplement minerals and vitamins1,2 | 0.150 | 0.150 | 0.150 |
| Inert carrier/Essential3 | 0.150 | 0.150 | 0.150 |
| Total | 100.00 | 100.00 | 100.00 |
| Calculated composition | |||
| ME (kcal/kg) | 2,980 | 3,050 | 3,125 |
| CP (g/kg) | 215.0 | 200.0 | 188.0 |
| Calcium (g/kg) | 9.50 | 8.50 | 8.00 |
| Available phosphorus (g/kg) | 4.50 | 4.30 | 4.00 |
| Digestible Met+cys (g/kg) | 8.80 | 8.00 | 7.50 |
| Digestible Lys (g/kg) | 12.50 | 11.50 | 10.45 |
| Digestible Thr (g/kg) | 8.10 | 7.50 | 6.80 |
| Digestible Trp (g/kg) | 2.36 | 2.16 | 1.99 |
ME, metabolizable energy; CP, crude protein.
Vitamin supplement, initial (content per kg of diet): vitamin A (retinyl acetate) 11,667 IU; vitamin D3 (cholecalciferol) 2,333 IU; vitamin E (DL-a-tocopheryl acetate) 35 IU; vitamin K3 (menadione dimethylpyrimidinol) 1.73 IU; vitamin B1 (thiamine mononitrate) 1.63 mg; vitamin B2 (riboflavin) 5.33 mg; vitamin B12 (cyanocobalamin) 0.02 mg; niacin (niacinamide) 35.93 mg; calcium pantothenate 12.67 mg; folic acid 0.80 mg; D-biotin 0.10 mg. Mineral supplement (content per kg of diet): Fe (iron sulfate monohydrate) 50.40 mg; Cu (cooper sulfate pentahydrate) 12.29 mg; I (calcium iodate) 0.99 mg; Zn (zinc oxide) 50.40 mg; Mn (manganous oxide) 60 mg; Se (sodium selenite) 0.24 mg; Co (cobalt sulfate) 0.20 mg.
Vitamin supplement, grower and finisher (content per kg of diet): vitamin A (retinyl acetate) 9,000 IU; vitamin D3 (cholecalciferol) 1,800 IU; vitamin E (DL-α-tocopheryl acetate) 28 IU; vitamin K3 (menadione dimethylpyrimidinol) 1.67 IU; vitamin B1 (thiamine mononitrate) 1.20 mg; vitamin B2 (riboflavin) 4 mg; vitamin B12 (cyanocobalamin) 0.01 mg; niacin (niacinamide) 28 mg; calcium pantothenate 10 mg; folic acid 0.56 mg; D-biotin 0.06 mg. Mineral supplement (content per kg of diet): Fe (iron sulfate monohydrate) 52 mg; Cu (cooper sulfate pentahydrate) 12 mg; I (calcium iodate) 1 mg; Zn (zinc oxide) 52 mg; Mn (manganous oxide) 60 mg; Se (sodium selenite) 0.30 mg; Co (cobalt sulfate) 0.20 mg.
Essential would take the place of the inert carrier in the treatments supplemented with Essential.