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Endocrinological studies on the regulatory mechanisms of egg-laying in birds.

鸟类产蛋调节机制的内分泌学研究。

基本信息

批准号：
02304027
负责人：
SATO Koji
金额：
$ 6.46万
依托单位：
School of Agriculture, Nagoya University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Co-operative Research (A)
财政年份：
1990
资助国家：
日本
起止时间：
1990 至 1991
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02304027/
关键词：
Egg-laying Photo-periodicity Reproduction Steroid Chicken Common Cormorants Geese Quail 繁殖季節就巣

项目摘要

Mechanism of egg-laying in birds might be composed of the following three processes ; Initiation (pairing, nesting and so on), Succession of egg-laying (clatch, ovulation and oviposition), and Cessation (Breeding). These processes have internaly organized and progressed under some programming. What is the programming ?The research is undertaken here to search a key of mystery of the programming, especially from a point of view of molecular biology. Items of the research works are shown as follows.1. Breeding season of the common cormorants, possibly a continuous breeder. 2. Growth of the ovarian follicles in geese. 3. Functional dissociation of the pineal glands and retina concerning diurnal rhythm of plasma melatonin in chicken. 4. Endocrine mechanism of oviposition, reference to sex steroids, PG and AVT. 5. Ovulation in the perfused ovary by PG and cathecolamin. 6. Dynamic states of the uterine receptors to posterior pituitany hormones. 7. Developmental expression of the prolactin gene in incubating hens. 8. High level expression of biological active prolactin in E. coli. 9. Proliferation and differentiation of granulosa cells of the ovarian follicles in Japanese quail, in vitro. 10. Plasma sex steroids and prolactin during annual reproductive cycles of geese. 11. Formation of annual reproduction of Japanese quail.

鸟类的产卵机制可分为三个过程：启动(配对、筑巢等)、产卵的接续(孵化、排卵和产卵)和停止(繁殖)。这些进程在一些方案编制下得到了内在的组织和进展。什么是编程？这里进行的研究是为了寻找编程之谜的钥匙，特别是从分子生物学的角度。研究工作的主要内容如下：1.普通鹈鹕的繁殖期，可能是一个连续繁殖者。2.鹅卵巢卵泡的发育。3.鸡松果体和视网膜的功能性分离与血浆褪黑素的昼夜节律有关。4.产卵的内分泌机制，参考性类固醇、PG和AVT。5.PG和长春花碱在灌流的卵巢内排卵。6.子宫受体对垂体后叶激素的动态反应。7.催乳素基因在孵化母鸡中的发育表达。8.生物活性催乳素在大肠杆菌中的高效表达。9.日本鹌鹑卵泡颗粒细胞的体外增殖与分化。10.鹅年繁殖周期中的性激素和催乳素。11.日本鸣禽年繁殖期的形成。