Effect of suppression of dsRNA-TsGDH on larval lipid content. A: Distribution of lipid droplets in different groups of T. spiralis muscle larvae. The complete lipid composition of the entire larva are dyed brown by oil red O, and smaller lipid droplets were evenly distributed in muscle larvae. The stichosome of ML had larger lipid droplets, which were reddish brown in color. The darker the color, the higher the lipid content. B: Glycerol standard curve. C: dsRNA-TsGDH reduced larval total lipid content. *p < 0.05 relative to the PBS group. Scale bars: 100 μm.