National Taiwan Ocean University Institutional Repository:Item 987654321/27176
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题名: Dietary zinc requirements of grass shrimp, Penaeus monodon, and effects on immune responses
作者: Shi-Yen Shiau;Lee-Chun Jiang
贡献者: NTOU:Department of Food Science
國立臺灣海洋大學:食品科學系
关键词: Zinc;Grass shrimp;Penaeus monodon;Nutrition
日期: 2006-04-28
上传时间: 2011-10-21T02:23:50Z
出版者: Aquaculture
摘要: Abstract:An 8-week feeding trial was conducted to determine the dietary zinc (Zn) requirement and its effect on the non-specific immune responses of juvenile grass shrimp, Penaeus monodon. Zinc was supplemented at 0, 10, 20, 30, 40, 50, 80 and 120 mg/kg diet in the basal diet providing of 7, 17.5, 28, 35, 48, 57, 87 and 127 mg Zn/kg diet, respectively. Each diet was fed to triplicate groups of shrimp with initial body weight of 0.44 ± 0.01 g. Shrimp fed diets supplemented with ≥ 35 mg Zn/kg had significantly (P < 0.05) greater weight gain than those fed diets with ≤ 17.5 mg Zn/kg. Hepatopancreatic and whole body Zn concentration in shrimp generally increased as dietary Zn supplementation increased. Both intracellular superoxide anion (O2−) production ratios and total haemocyte count (THC) were highest in shrimp fed diets with 35 and 48 mg Zn/kg. Analysis by broken-line regression of weight gain and by linear regression of the whole body Zn retention of shrimp indicated that the adequate dietary Zn concentration in growing P. monodon is 32–34 mg Zn/kg diet. The immune indicators suggest that an adequate dietary Zn concentration for non-specific immune responses in P. monodon is about 35–48 mg Zn/kg diet.
關聯: 254(1-4), pp.476–482
URI: http://ntour.ntou.edu.tw/handle/987654321/27176
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