碩士 / 國立臺灣海洋大學 / 水產養殖學系 / 99 / ABSTARCT
Two feeding trials (experiment I and experiment II) were conducted to evaluate the use of kitchen waste (KW) and fermented KW (FKW) as partial replacement of fish meal (FM) protein in diets for juvenile Asian sea bass (Lates calcarifer).
In experiment I, triplicate groups of 10 fish (mean body weight of 4.20±0.04g) were fed four experimental diets formulated to replace FM protein by KW at 0, 10, 20 and 30% (designated as control, KW10, KW20 and KW30, respectively). The water temperature ranged from 25 to 27°C and the experiment duration was five weeks. No significant differences were found in weight gain of fish fed different experimental diets. The weight gain was highest for Asian sea bass fed KW 20 (635.99%) and lowest for fish fed control diet (556.91%). Survival in all treatments was above 93%. All the diets were found to have good protein sources based on essential amino acid index (EAAI). The fatty acid profile of the muscle was reflected by the diets fed. There has a trend of increased n-3 polyunsaturated fatty acid (PUFA) in muscle with the increasing dietary levels of kitchen waste. Based on the quadratic regression analysis of maximum weight gain, fish meal replacement with kitchen waste was found to be 21.6%.
In experiment II, juvenile Asian sea bass (mean body weight of 3.85±0.03g) were fed seven experimental diets for six weeks. The experimental diets were formulated to replace FM protein by KW and FKW at 0, 10, 20 and 30% (designated as control, KW10, KW20, KW20, FKW10, FKW20 and FKW30, respectively). The weight gains of the fish fed KW diet and FKW diet were not significantly different from the control. The weight gain was highest for Asian sea bass fed FKW20 (515.74%) and lowest for fish fed control diet (369.29%). Survival in all treatments was above 97%. Amino acid profile of all the diets were balanced based on essential amino acid index (EAAI). The fatty acid profile of the muscle was reflected by the diets fed. Fatty acid of series n-3 was higher in muscle of fish fed control diet whereas n-6 PUFA was higher in muscle of fish fed KW and FKW diets. Based on the quadratic regression analysis of maximum weight gain, fish meal replacement with fermented kitchen waste was found to be 20.5%.
| Identifer | oai:union.ndltd.org:TW/099NTOU5086096 |
| Date | January 2011 |
| Creators | Kek Poo Chin, 郭寶琴 |
| Contributors | Shyn-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 | 131 |
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