奶牛体况与胎次、泌乳阶段和生产性能的关系
, 张程, 侯扶江 The relationship between cow body condition and parity, lactation stage, production performance
Zhang Jie, Zhang Cheng, Hou Fu-jiang
, Zhang Cheng, Hou Fu-jiang 
奶牛体况与胎次、泌乳阶段和生产性能的关系 |
|
张洁, 张程, 侯扶江 |
The relationship between cow body condition and parity, lactation stage, production performance |
|
Zhang Jie
, Zhang Cheng, Hou Fu-jiang |
| 不同体况荷斯坦奶牛乳蛋白率 |
| |