【摘要】 通过对史氏鲟的活体解剖和对消化系统各组织的观察,结果表明史氏鲟具有胃、幽门盲囊和瓣肠,胰脏形成独立的器官,在肝门部有部分弥散于肝脏组织中。与同属的中华鲟比较,口腔粘膜褶数量和形态不同;食道分段数量不同(史氏鲟分3段、中华鲟分2段);史氏鲟瓣肠有7个螺旋瓣,比中华鲟少;中华鲟的幽门盲囊有17个小盲囊,而史氏鲟只有10～12个小盲囊。更多还原

【Abstract】 Morphological and histological studies on the digestive system of the Amur sturgeon,Acipenser schrenckii showed that it has stomach, pyloric caeca and valvula intestine, and its pancreas has developed into an independent organ and also disperses into the porta hepatis of liver. There are some differences between A.schrenckii and A.sinensis in the number and shape of mucous membrane pleat in oral cavity, and also in the number of the subsection of esophagus, i.e. A.schrenckii has three subsections but A.sinensis has two subsections. A.schrenckii’s valvula intestine has seven spiral valves, less than those of A.sinensis. The pyloric caeca of A.sinensis is composed of seventeen little bursa, and A.schrenckii is between ten and twelve ones.更多还原