Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)
- Volume 32 Issue 5
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- Pages.642-648
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- 1999
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- 0374-8111(pISSN)
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- 2287-8815(eISSN)
Morphology and Histology of the Digestive Tract of the Black Sea Bream, Acanthopagrus schlegeli
감성돔 (Acanthopagrus schlegeli) 소화관의 구조 및 조직학적 특징
- LEE Jung Sick (Department of Fish Pathology, Yosu National University) ;
- CHIN Pyung (Department of Marine Biology, Pukyong National University)
- Published : 1999.09.01
Abstract
The digestive tract of the black sea bream, Acanthopagrus schlegeli is composed of esophagus, stomach, intestine, anus and four or five pyloric caeca. Pyloric caecum is a blind sac in shape and originated from pyloric portion of the stomach. Relative length of But (RLG), that is length of digestive tract to standard length, is 1.04 (n=10). Histological layer of the digestive tract is composed of serous membrane, muscular layer, undeveloped submucosal layer and mucosal layer. The mucosal folds of the esophagus are regular branched form, Esophageal muscularis mucosae is well-developed. Mucosal epithelial layer is composed of cuboidal or columnar epithelium and mucous secretory cell. Microvilli are absent in the free surface of mucosal epithelium. The mucosal folds of the stomach are regular unbranched form. The stomach has a well-developed muscular layer and muscularis mucosae. Microvilli are present in the free surface of mucosal surface epithelium. The fundic portion of the stomach have a well-developed gastric gland and more numerous secretory granules than the other parts. The mucosal folds of the pyloric caeca and the intestine are irregular branched form, Intestine is divided into the anterior, mid and posterior intestines with length of mucosal folds and histological features, Posterior intestine has a more developed striated border and goblet cells than the other parts. Mid intestine has a more abundant absorptive cells than the other parts in the intestine and pyloric caeca.
감성돔, Acanthopagrus schlegeli의 소화관은 식도, 위, 장, 항문 그리고 위의 유문부 말단에서 유래한 4