摘要
采用石蜡切片法和显微测量法研究了新型三倍体鱼—湘云鲫 (CarassiusauratusTriploid)、湘云鲤(CyprinuscarpioTriploid)消化道的组织结构 ,并探讨了消化道组织结构和食性之间的关系。结果表明 :湘云鲫、湘云鲤食道和肠道壁均由粘膜层、粘膜下层、肌层、浆膜层 4层组成 ,缺乏粘膜肌 ;二者消化道的组织结构与其各自的食性一致 ;二者食道粘膜上皮由单层柱状细胞和杯状细胞组成 ,这与其它鱼类的不同 ;湘云鲫比湘云鲤具有对食物更强的消化吸收能力 ;湘云鲫、湘云鲤肠道可分为前肠、中肠、后肠 3段。
The methods of wax microtomy and microscopic measurement were applied to study the histological structure of digestive tracts in Carassius auratus Triploid and Cyprinus carpio Triploid. The results show that :(1) The walls of oesophagus and intestine in both fishes, based on their length, consist of 4 layers, i. e.mucosa, submucosa, muscular coat, and serosa, but without muscular mucosa.(2) The histological structures of the two species' digestive tracts is consistent to their feeding habits, which is mainly expressed by the number of goblet cells, the morpha of mucosa and the dimension of digestive cavity. (3) The mucosa epithelium of oesophagus in C.auratus Triploid and C. carpio Triploid are constructed by simple columnar cells and goblet cells, which is different from that in other fishes. (4) The ability of digestion and absorption of food in C. auratus Triploid is stronger than that in C. carpio Triploid.(5) From the experimental data of the goblet cell number, the morpha of mucosa, and the dimension of digestive cavity, the intestines in both fishes divide into 3 parts anterior intestine, mid intestine and posterior intestine.
出处
《中国水产科学》
CAS
CSCD
北大核心
2001年第2期23-27,共5页
Journal of Fishery Sciences of China
基金
国家"八六三"计划项目 (1996 182 )
关键词
湘云鲫
湘云鲤
消化道
组织学
食性
Carassius auratus Triploid
Cyprinus carpio Triploid
digestive tract
histology
