Figure 3.

(A) Principal component analysis of intestinal microflora in two farming methods; PC1 (Principal Coordinate 1) and PC2 (Principal Coordinate 2) are used to describe the two main dimensions of differences and similarities between samples. (B) According to the hierarchical clustering tree of the two breeding modes, the samples are clustered according to the similarity, and the branch length between the samples is negatively correlated with the similarity. RF: rice field aquaculture; PD: pond aquaculture.