The results show that Ig molecular weight of Amur sturgeon,Chinese sturgeon and Huso sturgeon is 867 kD,896 kD and 924 kD respectively.

• PAGE及SDS-PAGE的结果显示:史氏鲟,中华鲟和达氏鳇IgM的相对分子量分别为867kD,896kD和924kD;