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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/37261

Title: Effects of dietary levan on growth performance, nonspecific immunity, pathogen resistance and body composition of orange-spotted grouper (Epinephelus coioides H.)
Authors: Mei-Ying Huang;Chin-I Chang;Chih-Chien Chang;Liang-Wei Tseng;Chorng-Liang Pan
Contributors: 國立臺灣海洋大學:食品科學系
Keywords: proximate composition;prebiotics;fish disease;immune-stimulation;haematology
Date: 2014-03
Issue Date: 2016-01-18T01:19:40Z
Publisher: Aquaculture Research
Abstract: Abstract:This study investigated the effects of levan produced by Bacillus licheniformis FRI MY-55 on growth performance, intestinal count of viable bacteria, immune status, pathogen resistance and body composition of orange-spotted grouper (Epinephelus coioides). Orange-spotted grouper were fed diets supplemented with levan at concentrations of 0 (control), 5.0, 10.0, 25.0 and 50.0 g kg−1 for 12 weeks. The final weight and per cent weight gain were significantly higher in the 25.0 g kg−1 levan-supplemented group than in the control group (p < 0.05). All levan-supplemented diets significantly decreased the count of total viable aerobic bacteria and Vibrio spp. in the intestines of groupers (p < 0.05). Serum total protein levels, globulin levels, lysozyme activity and survival rate of orange-spotted grouper after challenge with V. harveyi were significantly higher in the 25.0 g kg−1 levan-supplemented group than in the control group (p < 0.05). This study also found that the 10.0, 25.0 and 50.0 g kg−1 levan-supplemented diets significantly increased the crude protein level in the body composition of orange-spotted grouper. Overall, the results of this study indicate that dietary levan (25.0 g kg−1) could be an effective method for enhancing the growth performance and disease resistance in orange-spotted grouper.
Relation: 46(11),pp.2752-2767
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/37261
Appears in Collections:[食品科學系] 期刊論文

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