Fig. 6

Correlations between major classified genera (each having a relative abundance ≥0.1% in at least one of the dietary treatments; prokaryotes, fungi, and protozoa are labeled in black, green, and red, respectively) and milk quality and lactation performances. Only those with significant and strong correlation coefficients (|r| > 0.5, P < 0.05) were visualized. The degree of each correlation was shown both with the size and intensity of the color based on the color key on the right side