2014 Fiscal Year Final Research Report
Development of new low fishmeal diet using hormonal indicators
| Project/Area Number |
24380117
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Partial Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Fisheries chemistry
|
|---|
| Research Institution | Kochi University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
MURASHITA Koji (独)水産総合研究センター, 研究員 (60597649)
MORIOKA Katsuji 高知大学, 教育研究部自然科学系, 教授 (90230094)
|
|---|
| Project Period (FY) |
2012-04-01 – 2015-03-31
|
| Keywords | 水産学 / 栄養学 / 養魚飼料 / 成長因子 / 消化管ホルモン |
|---|
| Outline of Final Research Achievements |
High inclusion levels of soy protein in fish feed for yellowtail result in low growth, because of low digestibility and/or amino acid(s) deficiency. Gut hormone and growth factor were used as indicator to improve those problems. In digestibility, the strong stimulation of gut hormone synthesis and digestive enzyme released was occurred by water-soluble fraction from fishmeal, therefore we decided to blend at least 10% fishmeal for yellowtail feed (LFM). Lacked amino acid(s) in LFM were different by the production lot of fishmeal, but some amino acids were found as deficient amino acid(s) in the diet. Growth performance in fish fed LFM was improved by dietary supplementation of deficient amino acid(s), however further improvement was need to obtain equivalent growth to traditional high fishmeal feed.
|
| Free Research Field |
魚類栄養生理学
|
