The digestibility of essential amino acids such as Gly, Lys, Leu, Thr, Val, His and PHe were the highest when CP was 18%or 20%.

• 必需氨基酸中甘氨酸、赖氨酸、亮氨酸、苏氨酸、缬氨酸、组氨酸和苯丙氨酸的消化率以18%25或20%25CP组最高。