| DF | BO1 | YN1 | SD1 | AO4 | SD2 | BO5 |
PDA | 2.85b | 2.55b | 1.5ab | 2.9c | 2.3a | 2.05b | 5.45a |
CMA | 6.56a | 5.47a | 1c | 7.45a | 1.55b | 1.375c | 6.17a |
1/2(MS + CMA) | 6.2a | 4.8ab | 1.28bc | 2.5c | 1.35b | 1.425c | 4.2b |
PDA + 胡萝卜 | 3.15b | 2.7b | 1.85a | 3.9b | 2.35a | 2.33a | 4.4b |