2017 Fiscal Year Final Research Report
A reduction of feed intake of plant based diet by fish focused on CCK
| Project/Area Number |
15K07579
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Aquatic life science
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| Research Institution | Kochi University |
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Principal Investigator |
Toshiro Masumoto 高知大学, 教育研究部自然科学系農学部門, 教授 (10238917)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 養魚飼料 / 植物原料 / 摂餌量 / ブリ / 養殖 |
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| Outline of Final Research Achievements |
High demand and low supply of fishmeal in the market necessitates the replacement of fishmeal in feeds with plant protein sources but a major drawback of using plant proteins is a reduction of the feed intake by fish.
However, it is not clear a mechanism of the low feed intake of feed with a high inclusion of plant protein and effective measures to increase feed intake, either.The present research elucidated that CCK, which is known as an appetite-suppressing hormone, concentration in blood did not increase right after feeding suggested that CCK did not act as a signal to terminate feeding behavior. On the other hand, a feed intake of fish increased with a supplementation of SBL and it was found that an effective fraction in SBL was phosphate.
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| Free Research Field |
魚類栄養飼料学
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