番鸭肠道相关淋巴组织的分布和组织学结构

Distribution and histology of gut-associated lymphoid tissues in muscovy duck

采用组织学方法研究了番鸭肠道相关淋巴组织(GALT)的分布和组织学结构.结果表明,GALT分布在小肠、卵黄囊憩室、盲肠和直肠末端.小肠可见4处非常明显的GALT,呈环带状,3处位于空肠,一处位于回肠;盲肠近端可见大量GALT分布,盲肠远端和直肠末端可见散在GALT分布.在组织学上,番鸭的GALT与鸡和哺乳动物的相似.

The distribution and histomorphology of the gut-associated lymphoid tissues （GALT） of muscovy duck were studied by histological techniques. GALTs were found in the small intestine, Meckel＇s diverticulum, caecum and in the terminal rectum. In small intestine, GALTs distinctly appeared as annular bands at four sites, of which three sites were at jejunum and one site was at ileum. There were lots of GALTs in the proximal caecum and scattered GALTs in the distal caecum and the terminal rectum. Histomorphologically, the GALTs of the duck are similar to those of chickens and mammals.