碩士 / 國立屏東科技大學 / 水產養殖系所 / 105 / Abstract
Student ID：M10413003
Title of Thesis：Effects of tyramine on the immune responses of Litopenaeus vannamei
Total page：70
Name of Institute：Department of Aquaculture, National Pingtung University of Science and Technology
Graduate date：Jan 16, 2017 Degree conferred：Master
Name of Student：Chen-Shen Li Adviser：Winton Cheng
The Contents of Abstract in this thesis：
In this study, we determined the effect of tyramine (TA) on immunity of white shrimp, Litopenaeus vannamei. The total haemocyte count (THC), different haemocyte count (DHC), phenoloxidase activity, respiratory burst (release of superoxide anion), lysozyme activity, and phagocytic activity and clearance efficiency to the pathogen vibrio alginolyticus were measured when seawater shrimp Litopenaeus vannamei (11.18 ± 0.2) were individually injected with saline, or TA at 2.5 × 10-6 or 2.5 × 10-5 mol shrimp-1.Results showed that DHC and THC from 0.5 to 2 h, PO activity and respiratory burst from 0.5 to 4h, lysozyme activity from 0.5, 1 to 2 h, phagocytic activity from 2 to 4 h, clearance efficiency from 2 to 8 h significantly increased after TA injection at 2.5 × 10-6 or 2.5 × 10-5 mol shrimp-1. All of the immune parameters had returned to control values by 16 h after TA receiving. Injection of TA also significantly decreased the mortality of Litopenaeus vannamei challenged with the pathogen Vibrio alginolyticus. These results suggest that neurotransmitters TA promotes the immune resolution, which in turn enhance the resistance against to Vibrio alginolyticus of shrimp.
Keywords: Litopenaeus vannamei, Tyramine, Vibrio alginolyticus
| Identifer | oai:union.ndltd.org:TW/105NPUS5086006 |
| Date | January 2017 |
| Creators | Li,Chen-Shen, 李承燊 |
| Contributors | Cheng, Winton, 鄭文騰 |
| 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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