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. 2022 Feb 9;13:26. doi: 10.1186/s40104-021-00656-1

Fig. 1.

Fig. 1

Experimental layout. Seventy two birds were divided into 2 groups, namely, HM and TM. On d 14, half birds in per treatment were selected to do metabolic experiment for three days. The left parts were still fed with experimental diets. On d 21, non-metabolic birds were killed to get samples for metagenome analysis (n = 3)