Table 5.
Concentration of crude fat and fatty acids in early finisher diets containing full fat rice bran (FFRB) or defatted rice bran (DFRB), as fed basis
| Item, % | Basal | FFRB | DFRB | ||||
|---|---|---|---|---|---|---|---|
| 10% | 20% | 30% | 10% | 20% | 30% | ||
| Crude fat | 3.15 | 4.86 | 6.69 | 8.18 | 3.8 | 3.99 | 3.82 |
| C14:0 | 0.47 | 0.46 | 0.45 | 0.46 | 0.50 | 0.50 | 0.55 |
| C14:1 | ND1 | ND | 0.02 | 0.02 | ND | ND | ND |
| C:15:0 | 0.04 | 0.05 | 0.04 | 0.05 | 0.05 | 0.05 | 0.05 |
| C16:0 | 17.18 | 17.13 | 17.36 | 17.40 | 17.48 | 17.38 | 17.51 |
| C:16:1 | 0.74 | 0.64 | 0.56 | 0.54 | 0.74 | 0.72 | 0.74 |
| C17:0 | 0.21 | 0.17 | 0.16 | 0.13 | 0.20 | 0.20 | 0.19 |
| C:18:0 | 6.09 | 5.20 | 4.64 | 4.41 | 5.98 | 5.66 | 5.74 |
| C18:1 | 26.02 | 29.69 | 32.19 | 35.29 | 27.99 | 29.09 | 30.75 |
| C18:2 | 42.14 | 39.50 | 36.89 | 33.81 | 39.62 | 38.18 | 36.26 |
| C18:3 | 1.32 | 1.31 | 1.20 | 1.28 | 1.25 | 1.22 | 1.17 |
| C20:0 | 0.38 | 0.44 | 0.53 | 0.58 | 0.40 | 0.42 | 0.43 |
| C20:1 | 0.41 | 0.46 | 0.53 | 0.58 | 0.44 | 0.49 | 0.47 |
| C20:4 | 0.09 | 0.08 | 0.07 | 0.06 | 0.10 | 0.09 | 0.09 |
| C22:0 | 0.16 | 0.22 | 0.28 | 0.31 | 0.21 | 0.32 | 0.35 |
| C22:1 | 0.06 | 0.07 | ND | 0.09 | 0.08 | 0.05 | 0.05 |
| C24:0 | 0.18 | 0.36 | 0.49 | 0.56 | 0.39 | 0.61 | 0.78 |
| C24:1 | 0.04 | 0.02 | 0.03 | 0.04 | 0.04 | 0.05 | ND |
| Total SFA2 | 24.54 | 23.66 | 23.46 | 23.33 | 24.81 | 24.53 | 24.81 |
| Total MUFA3 | 27.23 | 30.86 | 33.30 | 36.51 | 29.25 | 30.35 | 32.01 |
| Total PUFA4 | 43.54 | 40.90 | 38.15 | 35.15 | 40.98 | 39.49 | 37.52 |
| IV5 | 99.87 | 98.40 | 95.66 | 93.28 | 97.07 | 95.43 | 93.42 |
Fatty acids are expressed as percent of crude fat. Diets are also analyzed for C14:1, C15:0, C20:5, C22:5, and C22:6, but these fatty acids are not detected in any diets.
1ND = not detected.
2Total SFA = C10:0 + C12:0 + C14:0 + C15:0 + C16:0 + C17:0 + C18:0 + C20:0 + C22:0.
3Total MUFA = C14:1 + C16:1 + C17:1 + C18:1 + C20:1 + C22:1.
4Total PUFA = C18:2 + C18:3 + C20:2 + C20:3 +C20:4 + C20:3 + C22:4 + C22:5 + C22:6.
5Iodine value = [(C16:1) × 0.95] + [(C18:1) × 0.86] + [(C18:2) × 1.732] + [(C18:3) × 2.616] + [(C20:1 × 0.785] + [(C22:1) × 0.723], where values in parentheses indicate concentrations of the specific fatty acids as a percentage of crude fat (AOCS, 1998).