Research Article

Evaluation of Phytosterols as an Alternative to Cholesterol in Practical Diets on Growth and Nonspecific Immunity of Litopenaeus vannamei

Figure 2

Effect of different sterol sources and levels on digestive enzyme activities in hepatopancreas of L. vannamei. Vertical bars represent the (). Data marked with different letters differ significantly () among groups based on Duncan’s test. The lack of superscript letter indicates no significant differences among treatments. Two-way ANOVA followed by Student-Newman-Keuls (SNK) multiple comparison test was conducted to investigate the interaction effects of sterol sources and levels.