碩士 / 國立臺灣海洋大學 / 水產養殖學系 / 102 / Since the natural stocks of eels have drastically decreased and A. marmorata was excluded from the list of conservation animals, Taiwan began farming the A. marmorata and A. bicolor. In the beginning, both the sort of technology and the economics of its aquaculture are most important to do as a basis of the industrial development. Therefore, this study is focused on the biology and economics which affect the profit in the farming of A. marmorata and A. bicolor by means of an industrial survey and analysis. The study is divided into three categories for analysis, including the type of pool, the size for marketing and the production area. According to the results, in this sort of production, the survival rate of A. marmorata and A. bicolor are both low. In this sort of market, A. bicolor can meet the listed specification such as 0.25 kg/tail for the Japanese market and 1.5 kg/tail for the Chinese market. If the listed specification is on 1.5 kg/tail, the main market of A. marmorata will be in China, but it should make a market segmentation with local aquatic products. In this sort of economics, the B/C ratio of A. bicolor is 1.16 and the B/C ratio of A. marmorata is 2.23.The advantage to the industry is cheaper fry cost. From the total cost, the feed cost has the highest percentage. Basically, there are great differences among the farmers’ management performance and all of the survial rate are very low. Accoding to the analysis result of the Cobb-Douglas production function, both of the industrial culture of A. marmorata and A. bicolor, returns to scale are decreasing. Therefore, the study suggests that the farming techniques should be improved and the cost input should be made more efficient. As a whole, the farming of A. marmorata and A. bicolor have great potential but in order to increase the profit of the eel sector, it still depends on the aquaculture industry, national government, academic and research organizations to do more studies related to production, technology and management.
| Identifer | oai:union.ndltd.org:TW/102NTOU5086046 |
| Date | January 2014 |
| Creators | Chiou, Jun-Ting, 邱俊廷 |
| Contributors | Miao, Sha, 繆峽 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 116 |
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