The effect of dietary taurine supplementation on growth performance, feed utilization and taurine contents in tissues of juvenile white shrimp (Litopenaeus vannamei, Boone, 1931) fed with low-fishmeal diets
文献类型: 外文期刊
作者: Yue, Yi-Rong 1 ; Liu, Yong-Jian 1 ; Tian, Li-Xia 1 ; Gan, Lian 1 ; Yang, Hui-Jun 1 ; Liang, Gui-Ying 1 ; He, Ju-Yun 1 ;
作者机构: 1.Sun Yat Sen Univ, Sch Life Sci, Inst Aquat Econ Anim, Nutr Lab, Guangzhou 510275, Guangdong, Peoples R China
2.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Key Lab Freshwater Fisheries & Germplasm Resource, Minist Agr, Wuxi, Peoples R China
3.South China Agr Univ, Anim Sci Coll, Guangzhou, Guangdong, Peoples R China
关键词: juvenile white shrimp;growth performance;taurine;free amino acid
期刊名称:AQUACULTURE RESEARCH ( 影响因子:2.082; 五年影响因子:2.415 )
ISSN: 1355-557X
年卷期: 2013 年 44 卷 8 期
页码:
收录情况: SCI
摘要: An 8-week feeding trial was conducted to investigate the effects of different taurine levels on the growth performance of juvenile white shrimp fed with low-fishmeal diets. Six level diets of dietary taurine were prepared by the supplementation of taurine (0, 0.4gkg(-1), 0.8gkg(-1), 1.2gkg(-1), 2.0gkg(-1) and 4.0gkg(-1)) to a control diet (100gkg(-1) fish meal). Each diet was randomly assigned to triplicate groups of 30 shrimps (0.48 +/- 0.0g), each three times daily. Shrimp fed the 0.4gkg(-1) and 0.8gkg(-1) taurine-supplemented diets, showed significantly higher weight gain, protein efficiency ratio and protein retention efficiency than those of shrimp fed the other diets. The quadratic regression analysis (y=-55.59x(2) +187.1x+750.2 R-2=0.587) indicated that a maximum weight gain occurring at 1.68gkg(-1) of taurine level. The whole body and hepatopancreas taurine contents of the taurine-supplemented diets were on the same level and higher than those of the control group. Total free amino acid content in the hepatopancreas was significantly affected by taurine supplementation. The results of the present study demonstrate that the white shrimps require taurine as an essential nutrient for growth performance.
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