Effects of stocking density on growth, antioxidant enzyme activity and related gene expression of juvenile Siberian hybrid sturgeon Acipenser baerii (♀)×A. schrenckii (♂)

• ZHAO Daxian, 
• CHENG Chao, 
• XIAO Min, 
• ZHU Minjie, 
• LI Linjie, 
• MEI Feng, 
• ZHA Yunfei, 
• JIAN Shaoqing