Table-2.
The analyzed concentrations of nutrients of the experimental diets on an as fed basisa.
| Items, % | Starter (days 1-14) | Grower (days 15-28) | Finisher (days 29-35) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| CON | CP-1% | CP-2% | CON | CP-1% | CP-2% | CON | CP-1% | CP-2% | |
| ME (kcal/kg) | 3027 | 3030 | 3031 | 3105 | 3108 | 3110 | 3190 | 3195 | 3200 |
| Analyzed CP | 22.2 | 21.1 | 20.13 | 20.1 | 19.28 | 18.3 | 18 | 17.14 | 16.2 |
| Calcium | 1 | 1 | 0.99 | 0.94 | 0.93 | 0.93 | 0.84 | 0.89 | 0.87 |
| Available phosphorus | 0.45 | 0.45 | 0.45 | 0.42 | 0.43 | 0.42 | 0.40 | 0.40 | 0.40 |
| Sodium | 0.17 | 0.17 | 0.17 | 0.19 | 0.19 | 0.19 | 0.21 | 0.21 | 0.21 |
| Digestible AA values | |||||||||
| dLysine | 1.15 | 1.15 | 1.16 | 1.03 | 1.04 | 1.06 | 0.92 | 0.92 | 0.96 |
| dMethionine | 0.44 | 0.43 | 0.56 | 0.42 | 0.43 | 0.54 | 0.38 | 0.38 | 0.49 |
| dMethionine+cystine | 0.75 | 0.73 | 0.84 | 0.71 | 0.71 | 0.81 | 0.65 | 0.64 | 0.73 |
| dThreonine | 0.74 | 0.78 | 0.91 | 0.67 | 0.69 | 0.71 | 0.55 | 0.59 | 0.61 |
| dTryptophan | 0.23 | 0.23 | 0.24 | 0.20 | 0.24 | 0.28 | 0.18 | 0.18 | 0.17 |
| dValine | 0.78 | 0.89 | 0.91 | 0.79 | 0.83 | 0.85 | 0.76 | 0.72 | 0.73 |
| dArginine | 1.27 | 1.21 | 1.15 | 1.16 | 1.10 | 1.04 | 1.04 | 0.97 | 0.90 |
| dIsoleucine | 0.84 | 0.80 | 0.75 | 0.76 | 0.72 | 0.68 | 0.68 | 0.64 | 0.59 |
The experimental diets were formulated to contain 22, 21, and 20 % CP for the starting period, 20, 19, and 18% CP for the growing period, and 18, 17, and 16% CP for the finishing period in CON, CP-1%, and CP-2%, respectively. The CP-1% and CP-2% groups were supplemented with threonine, valine, and tryptophan to meet or exceed the respective levels of the control diet.
Representative sample were analyzed in triplicate by NIR technology, MPA, BRUKER (Hitachi, Inc., Tokyo, Japan)