期刊
AQUACULTURE
卷 422, 期 -, 页码 141-145出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aquaculture.2013.12.014
关键词
Taurine; Sulfur amino acids; Methionine; Cysteine; Cysteine dioxygenase
资金
- National Scientific Foundation of China [31172416]
- Special Fund for Agro-scientific Research in the Public Interest [201303053]
- Fok Ying-Tong Education Foundation [131024]
Taurine is essential for development and homeostasis in various fish species. However, very limited information was available on the regulation of taurine biosynthesis in fish. In the present study, the effects of dietary sulfur amino acid supplementation on taurine biosynthesis were examined in juvenile turbot. Fish were fed with a casein-based semi-purified basal diet (CON) and diets supplemented with methionine at 0.5% (MM) and 1.5% (HM), cysteine at 0.3% (MC) and 0.6% (HC), or taurine at 1.5% (MT) and 2.5% (HT) separately, twice per day for 2 weeks. Growth performance, taurine concentration in multiple tissues, hepatic activities of cysteine dioxygenase (CDO) and cysteine sulfinic acid decarboxylase (CSD) were measured. Methionine, cysteine and taurine supplementations promoted growth performance in turbot. Methionine and cysteine supplementations stimulated hepatic CDO but not hepatic CSD activities. Dietary supplementation of methionine, cysteine and taurine increased taurine concentration in the liver. These results suggest the possibility that juvenile turbot has taurine biosynthesis capability, but may not be enough for its endogenous requirement. (C) 2013 Elsevier B. V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据