碩士 / 國立海洋大學 / 水產養殖學系 / 90 / This study was conducted to investigate the effects of diets containing different quantity of lipid levels on the growth, reproduction, ovarian maturation, spawning condition and survival of Litopenaeus vannamei broodstock. Diets included four lipid levels, 0, 1, 3, 5% were used in this study. The lipid sourcc was 2:1 fish oil/corn oil.
The protein sourccs were fish mcal, and squid meal.
There were three cxpcriments in this study. In experiment I, the effects of fourtreatmcnt diets on the growth, ovarian development and survival of female and male shrimp were investigated. The duration of the cxperiment was 12 weeks. The broodstock shrimp fed diet containing 1% lipid had significantly higher weight gain, ovarian weight and survival of male and female shrimp than those of other trcatmcnt groups. In experiment II, The effects of four trcatment diets(same with cxpcriment 1) on the ovarian maturation, spawning condition and survival of unilateral eyestalk ablated female shrimp were studied. The unilateral eyestalk ablated female broodstock shrimp fed diet containing 1% lipid had significantly maturation, number of eggs spent, spawning rate and survival than those of shrimp fed other treatment diets. The GSI of unilateral eyestalk ablated female was higher than that of intact shrimp. The levels of 20:4n-6, 20:5n-3 and 22:6n-3 of polar lipid of the tissues of female broodstock were higher than those of ncutral lipid of the tissues of female broodstock. The levels of 20:4n-6, 20:5n-3 and 22:6n-3 of broodstock ovary tissue were higher than those of hepatopancrcasc tissuc. In experiment III, the effects of artificial diet and fresh clams on the reproduction, ovarian maturation, spawning condition and accumulated ecdysis of unilateral eyestalk ablated female shrimp were studied. The diet containing 1% lipid had higher levels of crude protein, crude lipid, moisture, ash, gross energy and P/E ratio than hard clams. Broodstock female fed artificial diet and hard clams had no significantly different in the spawning rate, number of eggs spent, diameter of egg and survival. However, the accumulated moulting frcqucncy of brookstock fed hard clam was 2.25 times higher than that of shrimp fed with artificial diet.
| Identifer | oai:union.ndltd.org:TW/090NTOU0086033 |
| Date | January 2002 |
| Creators | 曾寶順 |
| Contributors | , 林明男, 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 | 113 |
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