摘要
通过形态解剖和显微技术对大鳍异(Creteuchiloglanis macropterus)消化系统的形态学和组织学进行了观察研究。结果显示,大鳍异消化系统具有以下特征:口下位,口咽腔大,颌齿发达,鳃耙稀疏;食道粗短,肌层发达,黏膜层具有大量杯状细胞;U型胃,包括贲门部、盲囊部和幽门部,具胃腺;肠道系数为0.93±0.11,肠长与体长呈显著线性关系,肠分为前肠、中肠和后肠,肠腔内有密集的肠绒毛;肝脏与胰脏分离,肝脏分为两叶,具有"腹腔外肝",胰脏弥散分布于前肠和中肠周围。
The morphology and histology of digestive system in Creteuchiloglanis macropterus were investigated by methods of anatomy and light microscopy. The results showed that the mouth of C. Macropterus was inferior,with developed oral teeth in the large buccal-pharynx cavity and sparse gill raker. The esophagus was short and thick,with developed muscular layers and abundant goblet cells in the mucous layer. The stomach shaped as U,which was composed of cardia,blind sac and pylorus,and lots of gastric glands were observed there. The average intestinal coefficient of the C. macropterus was0. 93 ± 0. 11,and there had a significant linear correlation between intestine length and standard body length. The intestine could be divided into three sections,including cranial,middle and distal parts,and numerous villi were there. Liver and pancreas were separated,and the former was divided into two lobes. What＇ s more,exo-coeliac liver was found in this fish,and its pancreatic tissue scattered diffusely in the mucosal lining of the cranial and middle intestine.
出处
《淡水渔业》
CSCD
北大核心
2015年第2期8-14,共7页
Freshwater Fisheries
基金
国家自然科学基金项目(31071903)
作者简介
黄自豪（1990-），男，云南保山人，硕士研究生，专业方向为渔业资源与环境。E-mail：Huangzh1015@163．com
通讯作者：王志坚。E-mail：wangzj1969@126．com
