碩士 / 國立臺灣海洋大學 / 水產養殖學系 / 105 / Three experiments were designed to develop highly attractive feed formulation for ornamental stingrays (Potamotrygon motoro) by the behavior response of the fish.
In experiment 1, the comparison of attractability or level of feed intake in juvenile or brooder among several leading domestic and international benthic fish feeds. The results showed that the commercial feed B had the best feed intake for the brood stingray and the juvenile stingray. Moreover the commercial feed C had the best attractability for juvenile stingray as compared with the tested domestic and international benthic fish feeds. In experiment 2, several attractants were included in eel powder feed or α-starch to test the attractability of the juvenile stingrays. The results showed that the shrimp meal had the best attractability among the tested attractants included into eel powder feed for the early juvenile stingray. However, after the juvenile stingray fed with eel powder feed for a period of time, there was no significant difference among the above attractants in two different level of inclusion in eel powder feed. So the attractants and their mixture were change to be included in α-starch instead of eel powder feed, the results showed that the shrimp meal had the best attractability among the single inclusion and the shrimp meal with squid meal had the best attractability among the mixture inclusion of attractants test.
Based the above results, three formulated feed (B, S, SF), raw fish (koi fish) and one leading international benthic fish feed were used to conduct a growth study. The results showed that the best feed efficiency (FE) was recorded in the group B at 0.62. Moreover, the percent weight gain (WG), feed intake (FI) and specific growth rate (SGR) in group SF was measured the best value. The results were better than those of the raw fish raw fish (koi fish) group and the leading international benthic fish feed group.
| Identifer | oai:union.ndltd.org:TW/105NTOU5086039 |
| Date | January 2017 |
| Creators | Lin, Ching-Wun, 林慶汶 |
| Contributors | Liou, Chyng-Hwa, 劉擎華 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 56 |
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