| 组别 | 规格(g) | 牧食率(mg∙g−1∙d−1) |
| A | 8.397 | 2.025 |
| B | 6.276 | 2.454 |
| C | 5.249 | 2.781 |
| D | 3.734 | 2.946 |
| E | 2.471 | 3.885 |
| F | 1.988 | 4.225 |
| G | 1.252 | 6.230 |
| H | 0 | 0 |