碩士 / 國立中山大學 / 海洋生物研究所 / 101 / Effects of different dietary α-linolenic acid (ALA, 18:3n-3) to linoleic acid (LA, 18:2n-6) ratios on growth performance, tissue fatty acid composition, and subsequent finishing (wash-out) efficiency in cobia was evaluated. The ALA/LA ratios of experimental formulated to be between 0.1 and 2.0 by supplementing different levels of palm oil, linseed oil, and sunflower oil, and a fish oil diet was used as the control. The experiment was carried out with a 10 week growth-out period when the experimental diets were given and a subsequent finishing “wash out” period of 8 weeks. There was no significant difference in growth performance of cobia. The fish fed with diet with a lower ALA/LA ratio (hence receive more dietary LA) had significantly higher concentrations of DHA in the muscle at the end of the finishing period. Dietary ALA/LA ratio not only affected the fatty acid profile of the cobia in growth-out period, but also increased the efficiency of HUFA deposition in the subsequent wash out period.
| Identifer | oai:union.ndltd.org:TW/101NSYS5270014 |
| Date | January 2013 |
| Creators | Ming-ta Chuang, 莊明達 |
| Contributors | Houng-Yung Chen, 陳宏遠 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 83 |
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