Table 3.
Ingredient composition and analyzed composition of experimental diets containing 0.42% and 0.50% standardized total tract digestible (STTD) P, as-fed basisa
| Ingredient, % | 0.42% STTD P | 0.50% STTD P | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Total P, %: | 0.63 | 0.63 | 0.63 | 0.63 | 0.63 | 0.71 | 0.71 | 0.71 | 0.71 | 0.71 |
| Total Ca, %: | 0.21 | 0.45 | 0.70 | 0.95 | 1.19 | 0.21 | 0.45 | 0.70 | 0.95 | 1.19 |
| STTD Ca, %: | 0.14 | 0.29 | 0.44 | 0.59 | 0.74 | 0.14 | 0.29 | 0.44 | 0.59 | 0.74 |
| Corn | 46.00 | 46.00 | 46.00 | 46.00 | 46.00 | 46.00 | 46.00 | 46.00 | 46.00 | 46.00 |
| Soybean meal | 32.50 | 32.50 | 32.50 | 32.50 | 32.50 | 32.50 | 32.50 | 32.50 | 32.50 | 32.50 |
| Cornstarch | 8.08 | 6.25 | 4.35 | 2.44 | 0.67 | 7.85 | 6.02 | 4.12 | 2.21 | 0.44 |
| Lactose | 10.00 | 10.00 | 10.00 | 10.00 | 10.00 | 10.00 | 10.00 | 10.00 | 10.00 | 10.00 |
| Choice white grease | 0.50 | 1.70 | 2.95 | 4.20 | 5.35 | 0.65 | 1.85 | 3.10 | 4.35 | 5.50 |
| Calcium carbonate | 0.16 | 0.79 | 1.44 | 2.10 | 2.72 | 0.16 | 0.79 | 1.44 | 2.10 | 2.72 |
| Monocalcium phosphate | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 |
| Monosodium phosphate | 1.15 | 1.15 | 1.15 | 1.15 | 1.15 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 |
| Sodium bicarbonate | 0.27 | 0.27 | 0.27 | 0.27 | 0.27 | – | – | – | – | – |
| L-Lys HCl | 0.37 | 0.37 | 0.37 | 0.37 | 0.37 | 0.37 | 0.37 | 0.37 | 0.37 | 0.37 |
| DL-Met | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 |
| Thr | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 |
| Val | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| Sodium chloride | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 |
| Vitamin mineral premixb | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 |
| Total | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| Analyzed composition | ||||||||||
| GE, kcal/kg | 3818 | 3869 | 3922 | 4014 | 4018 | 3845 | 3896 | 3928 | 4015 | 4008 |
| DM, % | 87.47 | 87.72 | 87.73 | 87.87 | 88.17 | 87.44 | 87.44 | 87.92 | 87.72 | 87.86 |
| CP, % | 19.33 | 19.01 | 17.91 | 18.78 | 18.43 | 19.59 | 18.86 | 18.89 | 18.41 | 18.81 |
| Ash, % | 4.82 | 5.44 | 5.54 | 6.71 | 7.82 | 5.80 | 5.51 | 6.45 | 7.16 | 8.06 |
| AEEc, % | 3.02 | 3.97 | 5.56 | 7.38 | 8.53 | 3.63 | 5.29 | 5.80 | 7.24 | 7.89 |
| ADF, % | 3.69 | 3.31 | 3.23 | 4.55 | 3.52 | 3.81 | 4.10 | 3.89 | 4.34 | 3.55 |
| NDF, % | 6.88 | 6.38 | 5.70 | 7.46 | 6.14 | 5.57 | 6.24 | 5.29 | 7.75 | 5.66 |
| Ca, % | 0.20 | 0.47 | 0.66 | 0.91 | 1.21 | 0.20 | 0.47 | 0.63 | 0.97 | 1.27 |
| P, % | 0.65 | 0.63 | 0.66 | 0.70 | 0.70 | 0.75 | 0.77 | 0.79 | 0.81 | 0.78 |
| Phytated, % | 0.49 | 0.49 | 0.49 | 0.49 | 0.49 | 0.49 | 0.49 | 0.49 | 0.49 | 0.49 |
| Phytate-bound Pe, % | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 |
| Non-phytate Pf, % | 0.51 | 0.49 | 0.52 | 0.56 | 0.56 | 0.61 | 0.63 | 0.65 | 0.67 | 0.64 |
| Na, % | 0.47 | 0.45 | 0.47 | 0.47 | 0.50 | 0.47 | 0.50 | 0.48 | 0.46 | 0.46 |
| K, % | 0.91 | 0.93 | 0.88 | 0.95 | 0.92 | 0.92 | 0.95 | 0.93 | 0.95 | 0.91 |
| Cl, % | 0.31 | 0.34 | 0.32 | 0.32 | 0.33 | 0.30 | 0.33 | 0.31 | 0.30 | 0.32 |
| DCADg, mEq/kg | 349 | 339 | 341 | 360 | 358 | 355 | 369 | 359 | 358 | 347 |
| Total Ca: total P | 0.33:1 | 0.71:1 | 1.11:1 | 1.51:1 | 1.89:1 | 0.30:1 | 0.63:1 | 0.99:1 | 1.34:1 | 1.68:1 |
| Total Ca: STTD P | 0.50:1 | 1.07:1 | 1.67:1 | 2.26:1 | 2.83:1 | 0.42:1 | 0.90:1 | 1.40:1 | 1.90:1 | 2.38:1 |
| STTD Ca: STTD P | 0.33:1 | 0.69:1 | 1.05:1 | 1.40:1 | 1.76:1 | 0.28:1 | 0.58:1 | 0.88:1 | 1.18:1 | 1.48:1 |
aAll diets were formulated to have the following quantities of NE (kcal/kg), CP (%), AA (expressed as standardized ileal digestible AA; %), and minerals (%): NE, 2520; CP, 19.30; Arg, 1.20; His, 0.47; Ile, 0.72; Leu, 1.42; Lys, 1.23; Met, 0.40; Phe, 0.84; Thr, 0.73; Trp, 0.22; Val, 0.78; Na, 0.47; Cl, 0.33; and K, 0.90. Values for NE and standardized ileal digestibility, and concentration of macro minerals in ingredients were from NRC, 2012.Values for STTD Ca and STTD P are calculated values (NRC [1], Stein et al. [2])
bThe vitamin-micromineral premix provided the following quantities of vitamins and micro minerals per kilogram of complete diet: vitamin A as retinyl acetate, 11136 IU; vitamin D3 as cholecalciferol, 2208 IU; vitamin E as DL-alpha tocopheryl acetate, 66 IU; vitamin K as menadione dimethylprimidinol bisulfite, 1.42 mg; thiamin as thiamine mononitrate, 0.24 mg; riboflavin, 6.59 mg; pyridoxine as pyridoxine hydrochloride, 24 mg; vitamin B12, 0.03 mg; D-pantothenic acid as D-calcium pantothenate, 23.5 mg; niacin, 44.1 mg; folic acid, 1.59 mg; biotin, 0.44 mg; Cu, 20 mg as copper sulfate; Fe, 126 mg as iron sulfate; I, 1.26 mg as ethylenediamine dihydriodide; Mn, 60.2 mg as manganous sulfate; Se, 0.25 mg as sodium selenite and selenium yeast; and Zn, 124.9 mg as zinc sulfate
cAEE = acid hydrolyzed ether extract
dPhytate was calculated by dividing the phytate-bound P by 0.282 (Tran and Sauvant [16])
ePhytate-bound P values were calculated from analyzed phytate-bound P in the ingredients
fNon-phytate P was calculated as the difference between total P and phytate-bound P
gDCAD = dietary cation-anion difference. The DCAD was calculated as Na + K – Cl