Table 1.
Dietary composition1
| Ingredient, % | Lactation diet |
|---|---|
| Ground corn | 46.30 |
| Dried distillers’ grain with solubles | 25.00 |
| Soybean meal, 47.5% CP | 21.3 |
| Vegetable oil blend2 | 2.85 |
| Limestone | 1.38 |
| Monocalcium phosphate, 21% P | 0.93 |
| Liquid energy3 | 0.75 |
| L-Lysine HCl | 0.52 |
| Salt | 0.28 |
| Vitamin premix4 | 0.25 |
| L-Threonine | 0.17 |
| Choline Chloride, 60% | 0.10 |
| L-Valine | 0.06 |
| L-Methionine | 0.05 |
| L-Tryptophan | 0.03 |
| Standardized ileal digestible amino acids, % | |
| Lysine | 1.15 |
| Methionine and cysteine:lysine | 0.50 |
| Threonine:lysine | 0.65 |
| Tryptophan:lysine | 0.18 |
| Valine:lysine | 0.70 |
| Isoleucine:lysine | 0.56 |
| Total lysine, % | 1.30 |
| Crude protein, % | 20.1 |
| Metabolizable energy, kcal/kg | 3,320 |
| Net energy, kcal/kg | 2,535 |
| Calcium, % | 0.77 |
| Phosphorus, % | 0.66 |
| Analyzed composition5, % | |
| Dry matter | 89.5 |
| Crude protein | 20.6 |
| Calcium | 1.06 |
| Phosphorus | 0.67 |
1Lactation diets were fed upon entry to farrowing house, according to treatment feeding strategy. After farrowing, sows received lactation diet ad libitum until weaning.
2Build R2 (Feed Energy Company, Pleasant Hill, IA).
3XFE Liquid Energy; alcohol-based liquid product (XFE Products, Des Moines, IA).
4Provided per kg diet: 10,409 IU vitamin A; 447 IU vitamin D3; 36.3 µg vitamin D; 70 IU vitamin E; 250 mg vitamin C; 3.7 mg vitamin K; 41.4 mg niacin; 27.5 mg pantothenic acid; 1.7 mg folic acid; 2.1 mg thiamine; 8.1 mg Riboflavin; 4 mg Pyridoxine; 35.4 mg vitamin B12; 0.4 mg Biotin; 221 mg Fe from Fe sulfate; 0.3 mg Se from Na selenite; 18.5 mg Cu from Intelibond C; 132 mg Zn from Intelibond Z; 33 mg Mn from Mn oxide; 1.2 I from calcium iodate; 0.44 mg Cr from Cr propionate; 500 FTU phytase.
5A total of eight samples (1 per week) of lactation diet from within the weekly pooled samples were analyzed in duplicate at a commercial laboratory (Ward Laboratories, Kearney, NE).