The role of gonads for growth in teleosts "Basic and Applied"

2016 Fiscal Year Final Research Report

• Project/Area Number: 25292126
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Aquatic life science
• Research Institution: Ehime University
• Principal Investigator: Miura Takeshi 愛媛大学, 南予水産研究センター, 教授 (00261339)
• Research Collaborator: KONDOU Fumitaka ; KITAMURA Shu ; HAYASHI Daichi ; MIURA Masatsugu 秀長水産 ; TAKEDA Yutaka 興洋水産 ; HAMADA Katsuto 浜英水産
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 生殖腺新機能 / 成長 / 成熟 / 栄養 / 水流 / 養殖 / 成熟リスク / 成長促進剤

Outline of Final Research Achievements

To establish the efficient fish culture, I analyzed the relationship between growth and maturation of several fish in endocrinologically. As a result of the analysis using several fish species, the gonads are necessary for normal growth and thus, from the perspective of regulation of body growth, can be considered a “secondary pituitary”, and it is considered that the role of gonad for body growth is the production and secretion of growth hormone and/or estradiol-17 beta (E2). Furthermore, I detected the relationships between maturation and environmental condition (water current), and maturation and nutritional factor. These finding is fundamental knowledge for regulation of maturation for the establishment of the efficient fish culture.

Free Research Field

水族生殖生理学