The results showed that the NRR of Shaoxing ducks were the highest when dietary CP were 19. 03%, 15. 57% and 12. 09% during 0~ 4 wk, 5~ 12 wk and 13~ 18 wk of age respectively.

  • 根据结果分析,绍鸭在0~4,5~12,13~18周龄的饲粮CP分别为19.03%,15.57%和12.69%时氮存留率最高。

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