Adequate and Excess Amounts of n-3 Highly Unsaturated Fatty Acids in the Diet for Juvenile Striped Jack, Pseudocaranx dentex.

• NAKAJIMA Masashi

  東京水産大学資源育成学科

• TAKEUCHI Toshio

  東京水産大学資源育成学科

• WATANABE Takeshi

  東京水産大学資源育成学科

• SEKIYA Sachio

  日本栽培漁業協会

• KANEMATSU Masaei

  日本栽培漁業協会

• IMAIZUMI Keinosuke

  日本栽培漁業協会

Bibliographic Information

Other Title

• シマアジ稚魚用飼料におけるｎ‐３高度不飽和酸の適正量と過剰量
• シマアジ稚魚用飼料におけるn-3高度不飽和酸の適正量と過剰量

Abstract

This experiment was conducted to clarify the adequate and excess amounts of n-3 highly unsaturated fatty acids (HUFA) in the diet for juvenile striped jack, Pseudocaranx dentex. Experimental diets were formulated to contain 65% white or brown fish meal as protein source. Dietary lipid contents and n-3HUFA levels were adjusted to about 15% and 1.5-6.1%, respectively, using triglycerides (EPA 28 oil), a n-3HUFA mixture (Ester 85), beef tallow and palm olein. After a 10-week feeding experiments, best weight gain and feed efficiency along with the lowest hepatosomatic index (HSI) were observed in fish fed diets containing 2.3-3.4% n-3HUFA. Further elevation of dietary n-3HUFA content resulted in reduced growth and increased HSI. In the liver, moisture contents decreased and crude lipid contents increased with increase of dietary n-3HUFA level.<BR>It is suggested that adequate levels of n-3HUFA in the diet and in the dietary lipid for juvenile striped jack are 2.3-3.4% and 15-25%, respectively, whereas excess amounts are more than 4.8% and 30%, respectively, at the 15% dietary lipid level.

Journal

• Aquaculture Science

  Aquaculture Science 43 (1), 75-81, 1995

  Japanese Society for Aquaculture Science

Keywords

• シマアジ
• 飼料
• n-3高度不飽和酸
• 適正量

Details

• CRID: 1390282679692242304
• NII Article ID: 10004769130
• NII Book ID: AN00124667
• DOI: 10.11233/aquaculturesci1953.43.75
• ISSN: 21850194
• ISSN: 03714217
• Web Site: https://agriknowledge.affrc.go.jp/RN/2030570918
• Text Lang: ja
• Data Source:
  • JaLC
  • IRDB
  • CiNii Articles
• Abstract License Flag: Disallowed