遗传 ›› 2017, Vol. 39 ›› Issue (12): 1158-1167.doi: 10.16288/j.yczz.17-132

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鸽乳的生物学功能及其生成调控

罗毅(),王讯(),马瑶,李晓开   

  1. 四川农业大学动物科技学院,动物遗传育种研究所,成都 611130
  • 收稿日期:2017-04-10 修回日期:2017-06-24 出版日期:2017-12-20 发布日期:2017-12-20
  • 作者简介:罗毅,博士研究生,专业方向:动物遗传育种与繁殖。E-mail: luoyi670@163.com|王讯,副教授,硕士生导师,研究方向:动物遗传育种与繁殖。E-mail: wangxun99@163.com
  • 基金资助:
    四川省科技厅应用基础计划项目(2016JY0167);四川省教育厅重点项目(15ZA0008);四川省青年科技创新研究团队项目(2015TD0012)

The biological function of pigeon crop milk and the regulation of its production

Luo Yi(),Wang Xun(),Ma Yao,Li Xiaokai   

  1. Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
  • Received:2017-04-10 Revised:2017-06-24 Online:2017-12-20 Published:2017-12-20
  • Supported by:
    the Application Basic Research Plan Project of Sichuan Province(2016JY0167);the Key Project of Sichuan Education Department(15ZA0008);the Program for Innovative Research Team of Sichuan Province(2015TD0012)

摘要:

鸽(Columba livia)是少数几种能分泌营养液哺育雏鸟的鸟类之一。孵化期的亲鸽嗉囊壁逐渐增厚,当雏鸽被孵出,亲鸽嗉囊会产生鸽乳(crop milk)以哺育雏鸽。鸽乳的营养成分及其生物学功能与哺乳动物的乳汁相似,其产生过程受催乳素的调节。在催乳素作用下,嗉囊上皮细胞快速增殖脱落形成鸽乳,该过程可能与膜联蛋白Icp35(AnxIcp35)等关键基因的转录以及JAK/STAT和Wnt等信号通路的激活有关。本文对鸽乳的主要成分、生物学功能和泌乳过程中嗉囊组织学变化进行了介绍,对鸽乳生成过程中特异的基因变化和分子调控机制进行了总结,以期为后续的相关研究工作提供有益的参考。

关键词: 鸽乳, 嗉囊, 鸽, 催乳素

Abstract:

The pigeon (Columba livia) is one of the few birds capable of secreting nutrients to nourish squabs. During the incubation period, the crop of the parent pigeon will be thickened. When squabs are hatched, the crop milk will be secreted from the crop and fed to squabs. The nutritional benefits are similar between the pigeon crop milk and mammalian milk, and both of them are regulated by prolactin. Prolactin stimulates the proliferation of crop epithelial cells, which eventually slough to form the crop milk. Evidence suggests that the complex process may be associated with the transcription of the AnxIcp35 gene and the activation of JAK/STAT and Wnt signal pathways. In this review, we summarize the main components and the biological function of the crop milk, the histological changes of the crop and the regulatory mechanism of crop milk secretion.

Key words: crop milk, crop, pigeon, prolactin