Table 1. Composition and chemical analysis (g/kg, unless otherwise indicated).
| Ingredient (g/kg) | T1 | T2 |
|---|---|---|
| Wheat | 382.6 | 382.6 |
| Barley | 250.0 | 250.0 |
| Soya bean meal | 170.0 | 170.0 |
| Maize | 150.0 | 150.0 |
| Soya oil | 18.0 | 18.0 |
| Limestone | 12.5 | 12.5 |
| Salt | 5.0 | 5.0 |
| Monocalcium phosphate | 6.6 | 6.6 |
| Vitamins and minerals premix a | 2.5 | 2.5 |
| Lysine HCL | 2.3 | 2.3 |
| L-threonine | 0.5 | 0.5 |
| Chitosan | 0 | 1.0 |
| Analysis (g/kg, unless otherwise stated) | ||
| Dry matter | 857.6 | 856.4 |
| Crude protein (N X 6.25) | 177.9 | 177.7 |
| Ash | 42.5 | 42.8 |
| Gross energy (MJ/kg) | 15.9 | 15.7 |
| Neutral detergent fibre † | 130.5 | 130.3 |
| Lysine † | 9.2 | 9.1 |
| Methionine and cysteine † | 5.5 | 5.4 |
| Threonine † | 6.2 | 6.3 |
| Tryptophan † | 1.9 | 2.0 |
| Calcium † | 9.4 | 9.4 |
| Phosphorous † | 5.8 | 5.7 |
T1, basal diet; T2, basal diet plus 1000 ppm chitosan.
a The premix provided vitamins and minerals (per kg diet) as follows: 4.2 mg of retinol, 0.07 mg of cholecalciferol, 80 mg of α-tocopherol, 120 mg of copper as copper sulphate, 100 mg iron as ferrous sulphate, 100 mg of zinc as zinc oxide, 0.3 mg of selenium as sodium selenite, 25 mg of manganese as manganous oxide, 0.2 mg of iodine as calcium iodate on a calcium sulphate/calcium carbonate carrier, 2 mg of thiamine, 15 μm of cyanocobalamin, 7 mg of pantothenic acid, 2 mg of riboflavin, 7 mg of niacin, 3 mg of adenine and 100 mg of phytase (Natuphos) (Nutec, Co. Kildare, Ireland).
† Calculated for tabulated nutritional composition [19].