碩士 / 國立海洋大學 / 水產養殖學系 / 91 / For the cobia of cage industry, price and quality from the source of fry influence the structure of the cost in this culture. The hypothesis of this research is to balance demand and supply, and make the economic analysis for the fry culture. Evaluating the most proper output is fit to develop sustainable for the cobia of cage industry.
Using the background of micro economic theories, the questionnaires is surveyed the operating input and output data and collected the other business information from the aquaculture farmers. This survey is focused on Tainan and Pingtong areas and after compiling the data we utilize the Break-even Analysis, C-D function analysis, Multivariate Analysis of Variance, Principal Components Analysis, Discriminant Function Analysis and Canonical Correlation Analysis to evaluate the key factor of the cobia industry.
Here is the result. It costs $1.6 dollars to breed a young ten centimeter fish. The prime cost is the feed. It costs 81.5% on total cost, and the second, staff cost, costs 7.2%. Therefore if we want to make a higher profit, it must to reduce the cost of forge. In the break-even analysis, it can reach the break-even point, when the survival rate of fry is 2.5% (about 1.25 ten thousand fishes). Generally speaking, the fish farmers can breed seven to eight ten thousand fishes on average. There are economical scales on the fish farms. It is said that it will increase 2.35 times on fry production by doubling the forge costs. It also indicates that they have more productivity and total net profits in the Pingtong area and the quality of spawn and the spawn of the net profits is better. On the other hands, the culture technology, the culture technology of the net profits, feed productivity, and feed productivity of the net profits is better in the Tainan areas. Also, the fish farmers say that it has little problems in technology to get a mass production, and it proves that the aquaculture of fry production in Taiwan takes a lead position in the world. Since the market of the cobia is not mature, the fish culture takes fixed contracts to maintain the balance on the demand and supply.
| Identifer | oai:union.ndltd.org:TW/091NTOU0086038 |
| Date | January 2003 |
| Creators | ChiungNong Wu, 吳炯農 |
| Contributors | Sha Miao, 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 | 62 |
Page generated in 0.0021 seconds