期刊
AQUACULTURE NUTRITION
卷 20, 期 5, 页码 514-519出版社
WILEY
DOI: 10.1111/anu.12104
关键词
Carassius auratus gibelio; gibel carp; myo-inositol; requirement
类别
资金
- National Key Basic Research Program [2009CB118702]
- Modern Agro-industry Technology Research System [CARS-46-19]
- Institute of Hydrobiology, the Chinese Academy of Sciences
An 11-week growth trial was conducted to determine dietary myo-inositol (MI) requirement for juvenile gibel carp (Carassius auratus gibelio). Myo-inositol was supplemented to the basal diet to formulate six purified diets containing 1, 56, 107, 146, 194 and 247 mg MI kg(-1) diet, respectively. Each diet was fed to triplicate groups of juvenile gibel carp (initial body weight 3.38 +/- 0.27 g, mean +/- SD) in a flow-through system. The diets were randomly assigned to different fish tanks. Fish fed >= 107 mg MI kg(-1) diet had significantly higher weight gain (WG), feed efficiency (FE) and protein efficiency ratio than those fed 1 mg MI kg(-1) diet. Fish fed >= 56 mg MI kg(-1) diet had higher feeding rate and survival compared with fish fed 1 mg MI kg(-1) diet. Dietary supple-mental inositol did not affect fish liver inositol concentration. Fish fed >= 56 mg MI kg(-1) diet had higher body dry matter, crude protein and gross energy and lower hepatosomatic index than fish fed 1 mg MI kg(-1) diet. Dietary inositol supplementation decreased fish body ash. Quadratic regression of weight gain indicated that the myo-inositol requirement to maximum growth for juvenile gibel carp was 165.3 mg MI kg(-1) diet.
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