| 摘要: |
| 用免疫组织化学方法在食鱼的鸬鹚幽门区中发现了胃泌素、生长抑素、5-羟色胺、禽胰多肽和神经降压素细胞等五种内分泌细胞。其密度和种类大于食谷性和杂食性鸟类,且幽门区的长度为这些鸟类的3—4倍。这些特点可能是食肉性鸟类适应其生态习性的一种选择。 |
| 关键词: 神经降压素 内分泌细胞 生态习性 鸟类 胃泌素细胞 杂食性 肉食性 生长抑素细胞 幽门腺 |
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| IMMUNOHISTOCHEMICAL STUDY OF ENDOCRINE CELLS OF PYLORIC REGION IN PHALACROCORAX CARBO |
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| Abstract: |
| The endocrine cells of pyloric region of Phalacrocorax carbo h- ave been studied by immunohistochemical method.Gastrin-,somatostat- in-,serotonin-,avian pancreatic polypeptide- and neurotensin-cells are identified in this region. The density and kinds of the endocrine cells are obviously higher in Phalacrocorax carbo than in birds eatting grain and omnivorous bi- rds,in addition,the length of the pyloric region is three or four times as much as birds eatting grain and omnivorous birds.These character- istic... |
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