| 军曹鱼消化系统胚后发育的组织学研究 |
| Histological Studies on the Postembryonic Development of the Digestive System in Rachycentron canadum |
| 投稿时间：2009-10-19 修订日期：2009-12-16 |
| DOI： |
| 中文关键词:军曹鱼 消化系统 胚后发育 组织学 |
| 英文关键词:Rachycentron canadum digestive system postembryonic development histology |
| 基金项目:“863”计划项目（编号：2002AA603012、2005AA603020）;广东省科技厅重大项目（编号：2003A2010502、2005A20105002）;国家支撑计划（编号：2007BAD29B01） |
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| 中文摘要: |
| 利用连续石蜡切片方法对军曹鱼（Ｒａｃｈｙｃｅｎｔｒｏｎｃａｎａｄｕｍ）消化系统胚后发育（１～２９日龄）进行了光镜观察。结果表明，食道前部内侧纵行肌纤维发达，后部球形粘液细胞更丰富；胃腺的分化较晚，在仔鱼后期（出膜后８ｄ）才见胃腺细胞团。胃幽门部无胃腺，但具发达的肌层。肠上皮的纹状缘出现较早，１日龄时就可见，而且发育较快，３日龄时很发达。肠后段黏液细胞明显多于前段和中段。肝脏发育较早，但１６日龄仔鱼才开始贮存脂质。胰腺为弥散型，２日龄出现。军曹鱼这些结构特点的变化是与其摄食、消化、吸收的功能相适应的；其摄食方式以及食性也随着消化系统的发育而变化。 |
| 英文摘要: |
| A serial paraffin slice method was used to observe the digestive system in Rachycentron canadum during its post-embryonic development(1 to 29 days)with optic microscope.The anterior oesophagus had developed longitudinal muscle fiber, the posterior oesophagus had more mucous cells. The first differentiation of gastric glands had occurred at 8 days after hatching. Although the pyloric part(or pylorus) of the stomach was devoid of gastric glands，it had the thickest muscularis. The striated border could be detected at 1 day after hatching and were well-developed at 3 days. There were more mucous cells in posterior intestine. The first differentiation of liver had occurred at 2 days after hatching，and the liver started to accumulate lipids at 16 days after hatching. The pancreas was disperse and occurred at 2 days after hatching. The change of the structure characteristics of Rachycentron canadum was in accordance with its feeding，digestion and absorption functions; and its feeding habit was changing with the development of digestive system.
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| 初庆柱,张健东,陈 刚,叶富良.2010.军曹鱼消化系统胚后发育的组织学研究[J].水生态学杂志,31(4):86-91. |
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