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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
Address:College of Life Sciences, Sichuan University, No.29, Wangjiang Road, Chengdu, Sichuan Province, 610064, China
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Your Position :Home->Past Journals Catalog->2011 Vol.30 No.4

Anatomical and Histological Structure of Digestive System of Botia reevesae
Author of the article:WANG Fang1, YUE Xing-jian1, XIE Bi-wen1*, WANG Yu1, QI Ze-ming1, GE Zheng-liang2
Author's Workplace:(1. School of Chemistry and Life Science, Neijiang Normal University, Key Laboratory of Regional Characteristic Agricultural Resources, Department of Education, Neijiang, Sichuan Province 641112, China; 2. The Aquicultural and Fishery Administration Bureau of Zizhong County, Zizhong, Sichuan Province 641200, China)
Key Words:Botia reevesae; digestive system; anatomical structure; histological structure
Abstract:Anatomical and histological structure of digestive system of Botia reevesae was studied. The results showed that B. reevesae is a typical stomach-possessing fish with a U-shaped stomach. Its digestive tract is relatively short, being 1.02±0.05 times of its body length. Taste buds in the mucous layer of pharynx are developed. Only annular striped muscle is present in the muscle layer of esophagus and longitudinal muscle lacks. The stomach comprises of three portions: cardia, blind sac and pylorus. Gastric glands are observed just in cardiac stomach. The inner annular smooth muscle layer is very thick in fundic stomach, and the muscle layer of pyloric stomach is formed by longitudinal-annular-longitudinal three layers. Sphincter pylori are developed in the end of the pyloric stomach. The various sections of the intestine are not significantly different in their histological structure. Liver is divided in two pieces and the left one is more developed. The pancreas tissues scatter in mesenterium around liver, spleen, stomach and intestine or disperse into liver along blood vessel.
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