to nourish the liver and kidney, strengthen muscles and bones, control blood pressure, and prevent aging. Researchers have evaluated the effects of in livestock, rats, grass carp, common carp, and eels, but there is currently no information on its effects in shrimp. We evaluated the effects of dietary Egrowth, digestive protease activities, serum nonspecific immunity, and muscle composition of (body weight: 7.5 g±0.2 g) were fed a diet containing 0.0% bark for 42 d. Survival was high in all groups and was not different among groups>0.05). The growth rates and feed conversion rate (FCR) of the five groups were 123.9%, 127.3%, 128.3%, 136.1%, and 135.2% and 1.46, 1.43, 1.41, 1.33, and 1.34, respectively. Shrimp fed a diet containing 2.0% P<0.05) than that of the control group, and the lowest FCR (1.33), 0.13 (<0.05) lower than that of the control group. Relative to the control group, serum LSZ and PO activity was significantly higher in the 0.5%groups. Furthermore, the addition of 1.0% resulted in a reduction in serum MDA and an increase in hepatopancreas protease activity. The death rate of shrimp 96 h after challenge by E. ulmoides compared with the control group. There was no difference in muscle moisture, ash, crude fat, and crude protein among groups, but muscle collagen content was increased by the addition of 2.0% and 3.0% compared with the control group. Our results suggest that the addition of 2.0% in the diet improves growth performance and collagen content in, and the addition of 0.5%