碩士 / 國立臺灣海洋大學 / 水產養殖學系 / 106 / This experiment compares the effects of different feed additives at different time on superoxide dismutase (SOD), glutathione peroxidase (GPx), blood biochemical parameters and growth parameters of white shrimp. There are nine groups of experiment feeds with different additives which are commercial (A), commercial (B), commercial (C), lipoic acid (E), astaxanthin (F), commercial (G), commercial (H), Ganoderma (I), and the control (D), respectively. Triplicated tests were done for each group.
The experiment was conducted within 30 days. In each tank, 15 white shrimps was raised and weighted about 7 grams each. White shrimps after the experiment feeding on the 0th, 7th, 18th and 30th days were taken blood for superoxide dismutase (SOD) and glutathione peroxidase (GPx) analysis. Then, blood biochemical and growth parameters were tested on the 0th and 30th days. On the 0th day, the activities of SOD and GPx in each experiment group have no significant differences with control group (D). On the 7th day, the activities of SOD in lipoic acid group (E) are significant higher than control group (D), and the activities of GPx in commercial group (B), commercial group (C) and lipoic acid group (E) are also significant higher than control group (D). On the 18th day, the activities of SOD in lipoic acid group (E) are significant higher than control group (D), and the activities of GPx in commercial group (A), lipoic acid group (E) and Ganoderma (I) shows the same way as well. On the 30th day, the activities of SOD and GPx in all experiment groups have no significant differences with control group (D). Besides, there is no significant difference in blood biochemical parameters on the 0th day and the 30th day. On the other hand, lipoic acid group (E) has the highest weight gain rate and feed conversion rate which are significant higher than commercial group (G). The survival rates of this two groups, however, are in contrast, but there are no significant differences between them when compared with the control group (D).
This study shows that the activities of SOD and GPx in all groups increase or decrease on the 7th and 18th days, and then they return back to the starting values at the end of the experiment on the 30th day. Wherein the lipoic acid group (E) has a sustainable and higher activity, its survival rate is still low. This experiment results also show that the additives can’t provide white shrimp with a long-term stimulation upon a high antioxidant status.
| Identifer | oai:union.ndltd.org:TW/106NTOU5086011 |
| Date | January 2018 |
| Creators | Sun, Po-Wei, 孫博威 |
| 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 | 70 |
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