| 摘要 |
PROBLEM TO BE SOLVED: To provide an artificial formula feed for fish of thunnus which improves survival rate in a fry period of the fish with fully satisfactory growth rate and obesity level and being mixed with an inexpensive lipid source compared with salted salmon roe oil.SOLUTION: The artificial formula feed is constituted by mixing fish-originated phospholipid fraction prepared from fish raw oil made of a head portion of fish as a main raw material as a lipid source. |
