碩士 / 國立海洋大學 / 水產養殖學系 / 89 / This study was conducted to investigate the effects of diets with different quantity of polyunsaturated fatty acid (PUFA) or highly unsaturated fatty acid (HUFA) on the growth、condition factor and survival of juvenile abalone, Haliotis diversicolor. In experiment I, seven isonitrogenous and isoenergetic diets containing beef tallow and pure triglycerides of 0.05、0.1 and 0.2﹪18:2n-6 (Trilinolein) and 18:3n-3 (Trilinolenin). In experiment II, ten isonitrogenous and isoenergetic diets containing beef tallow and pure triglycerides of 0.05、0.1 and 0.2﹪20:4n-6 (Triarachidonin)、20:5n-3 (Trieicosapentaenoin) and 22:6n-3 (Tridocosahexaenoin). The red algae, Gracilaria sp., was used as a control diet.
All diets were fed to juvenile abalone for 12 weeks. In experiment I, juvenile abalone fed diets containing 0.2﹪18:3n-3 and beef tallow had significantly higher weight gain than those fed the other diets. In experiment II, juvenile abalone fed diets containing 0.1﹪22:6n-3 had significantly higher weight gain than those fed the other diets. Diets containing high proportion of Trilinolein or Trilinolenin could not improve the growth of juvenile abalone. The high levels of 18:2n-6、18:3n-3、20:4n-6、20:5n-3 and 22:6n-3 in the polar and neutral lipid of soft body and viscera of juvenile abalone were conserved in the abalone. Abalone fed diets containing 20:5n-3 and 22:6n-3 had high level of fatty acids of soft body. The viscera of abalone fed Gracilaria sp. was found to accumulate high level of 20:4n-6.
The purpose of this study was conducted to investigate the effects of different protein levels and protein/energy (P/E) ratio on the growth、conduction factor and survival of Taiwan abalone, Haliotis diversicolor. Defatted casein was used as the protein source and levels of energy were adjusted by lipid and corn starch. Diets were designed to contain three protein levels, (15、20 and 25﹪) with four P/E ratios (88.8、80.1、72.2 and 66.2 mg protein/Kcal). The feeding trial was conducted twelve weeks. Abalone fed diet containing 25﹪protein with 80.1 mg protein/Kcal P/E ratios had the best weight gain. Abalone fed diet containing 88.8 mg protein/Kcal P/E ratios diet had the lowest growth in three protein levels. Survival of abalone fed treatment groups ranged from 93.3 to 100﹪.
| Identifer | oai:union.ndltd.org:TW/089NTOU0086027 |
| Date | January 2001 |
| Creators | bo-nine chen, 陳柏年 |
| Contributors | shyh-shin sheen, 沈士新 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 127 |
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