【摘要】 对淡水鲨鱼的内、外部形态结构进行了描述,并绘制了外观、内部构造、上下颌、鳔、尿殖系统、消化道、肛门与尿殖孔的图谱;介绍了淡水鲨鱼的生态习性与病害防治技术。更多还原

【Abstract】 The morphology,structure and ecology of Pangasius sutchi  were described and introduced in this paperThe pictures including the jaw,the reproductive system and the digestive system of Pangasius sutchi were drawnBesides,the common diseases and disease controlling methods were also introduced in it更多还原