Figure 2.

Effect of different levels of dietary CGA supplementation on muscle microstructure in P. diacanthus. (A) Microstructure observation of H&E staining in muscle (×200, scale bar is 50 μm); (B) analysis of muscle fiber diameter; (C) analysis of muscle fiber gap; (D) analysis of muscle fiber density; and (E) microstructure of muscle using transmission electron microscopy (before: ×5.0 k, scale bar is 1 μm; after focusing: ×10.0 k, scale bar is 500 nm). M, mitochondria; ML, M-line; ZL, Z-line;  ^∗swelling of mitochondria. Data were shown as mean ± SD (n = 3). Columns with different letters indicated values with significant difference (P < 0.05).