Table 1.
Ingredient and calculated nutrient contents of the basal diets
| Pre-starter diet (days 1 to 5) | PC (days 5 to 15) | NC (days 5 to 15)1 | |
|---|---|---|---|
| Ingredient, g/kg (as-fed basis) | |||
| Corn | 540.3 | 602.7 | 628.7 |
| Soybean meal 480 g/kg | 330.0 | 281.0 | 244.8 |
| Rapeseed meal | 50.0 | 50.0 | 50.0 |
| Rice bran | 30.0 | 10.0 | 47.7 |
| Dicalcium phosphate | 18.2 | 15.7 | 0.00 |
| Soybean oil | 10.5 | 16.4 | 0.0 |
| Limestone2 | 9.0 | 7.9 | 13.3 |
| l-lysine HCl | 2.1 | 1.9 | 2.3 |
| dl-methionine | 3.1 | 2.8 | 2.8 |
| l-threonine | 1.1 | 0.9 | 1.2 |
| Salt | 2.5 | 2.5 | 2.4 |
| Sodium bicarbonate | 1.5 | 1.5 | 0.10 |
| Vitamin-mineral premix3 | 1.7 | 1.7 | 1.7 |
| Titanium dioxide | 0 | 5.0 | 5.0 |
| Nutrient composition, g/kg | |||
| ME, kcal/kg | 2,875 | 2,975 | 2,907 |
| Crude protein | 225.0 | 204.0 | 194.0 |
| Calcium | 9.6 | 8.4 | 6.4 |
| Total phosphorus | 7.8 | 7.0 | 4.7 |
| Digestible phosphorus | 4.2 | 3.7 | 1.5 |
| Phytate-P | 3.25 | 2.83 | 3.33 |
| Sodium | 1.8 | 1.8 | 1.4 |
| Digestible lysine | 11.9 | 10.6 | 10.2 |
| Digestible methionine + cysteine | 8.8 | 8.1 | 7.8 |
| Digestible methionine | 5.9 | 5.4 | 5.3 |
| Digestible threonine | 8.0 | 7.1 | 7.0 |
| Digestible valine | 8.9 | 8.1 | 7.7 |
| Digestible isoleucine | 7.9 | 7.1 | 6.7 |
| Digestible arginine | 13.4 | 12.0 | 11.1 |
Phytase enzyme was added on top of the NC diet.
Limestone mean particle size, 380 μm GMD; in vitro solubility 45%, 75%, and 90% after incubation for 5, 15, and 30 min, pH 3.0, determined according to the method of Kim et al. (2019).
Supplied per kg diet: vitamin A (E 672), 10,000 IU; vitamin D3 (E 671), 2,000 IU; vitamin E (a-tocopherol), 30.0 mg; vitamin K3, 2.0 mg; vitamin B1, 1.0 mg; vitamin B2, 5.0 mg; vitamin B6, 3.0 mg; vitamin B12, 12.0 µg; nicotinic acid, 40.0 mg; calcium pantothenate, 10.0 mg; Folic acid, 1.0 mg; biotin, 0.1 mg; choline chloride, 400 mg; copper as CuSO4·5H2O, 8.0 mg; iron as FeCO3, 60.0 mg; iodine as IK, 2.0 mg; manganese as MnO, 70.0 mg; selenium as Na2SeO3, 0.15 mg; zinc as ZnO, 35.0 mg; butylated hydroxytoluene, 4 mg; citric acid, 13,8 mg; sodium citrate, 0.4 mg; sepiolite, 0.4 g; calcium carbonate, 2.34 g.