Effect of different levels of Spirulina platensis dietary supplementation on the growth, body color, digestion, and immunity of Trachinotus ovatus
文献类型: 外文期刊
第一作者: Lin, Heizhao
作者: Lin, Heizhao;Yang, Yukai;Wang, Jun;Huang, Xiaolin;Huang, Zhong;Zhou, Chuanpeng;Wang, Yun;Yu, Wei;Qi, Changle;Chen, Xiaoru;Lin, Heizhao;Yang, Yukai;Huang, Xiaolin;Huang, Zhong;Yu, Wei
作者机构:
关键词: Spirulina platensis;Trachinotus ovatus;growth performance;body color;digestion;immunity
期刊名称:ISRAELI JOURNAL OF AQUACULTURE-BAMIDGEH ( 影响因子:0.287; 五年影响因子:0.593 )
ISSN: 0792-156X
年卷期: 2016 年 68 卷
页码:
收录情况: SCI
摘要: The effect of different levels of Spirulina platensis supplementation (0%, 1%, 2%, 3%, 4%, and 5%) on Trachinotus ovatus (initial weight of 5.8 +/- 0.04 g) growth, body color, digestion, and immunity were investigated. The experiment, comprising 3 replications of all supplementation treatments, was performed in 18 cages, 20 fish per cage. The fish were fed twice a day (08: 00 and 17: 00) to satiation over an experimental period of 8 weeks. There was no significant effect of S. platensis dietary supplementation on growth, body composition, and feed utilization in T. ovatus (P>0.05). Abdominal yellow color values markedly increased when feed was supplemented with 3%-5% S. platensis. Dietary S. platensis supplementation had no significant effect on intestinal amylase and lipase activity, while protease activity increased to some extent but was not statistically significant (P>0.05). As the dietary S. platensis levels increased, the content of alkaline phosphatase in the blood also increased, while blood glucose and malondialdehyde (MDA) content in the liver decreased (P<0.05). The MDA content was significantly lower with 3%-5% supplementation than with 0%-2% (P<0.05). S. platensis dietary supplementation can therefore improve body color and immunity in T. ovatus.
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