The energy digestibility and metabolizability were ascended when the dietary fat addition increased(P<0.05).

能量消化率和代谢率随油脂添加水平的提高而显著提高（P<0.05）；

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The energy digestibility and metabolizability were ascended when the dietary fat addition increased(P<0.05).

能量消化率和代谢率随油脂添加水平的提高而显著提高（P<0.05）；

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