期刊
AQUACULTURE REPORTS
卷 2, 期 -, 页码 163-168出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aqrep.2015.10.003
关键词
Lipid source; Lipid metabolism; Fatty acid; Litopenaeus vannamei; Low salinity
类别
资金
- National Natural Science Foundation of China [31472291, 31172422]
- Special Fund for Agro-scientific Research in the Public Interest [201203065]
- National 'Twelfth Five-Year' Plan for Science & Technology Support [2012BAD25B03]
- National Basic Research Program (973Program) [2014CB138603]
- E-Institute of Shanghai Municipal Education Commission [E03009]
- ECNU innovation fund
Litopenaeus vannamei (1.98 +/- 0.28 g) were fed diets containing soybean oil (SBO), beef tallow (BFT), fish oil (FIO), linseed oil (LNO), and an equal combination of SBO + BFT + FIO (SBF) or SBO + BFT + LNO (SBL) as dietary lipid source respectively for 8 weeks at low salinity of 3 parts per thousand. The shrimp fed the SBL diet had the highest weight gain and survival rate. The whole body fatty acid composition including the EPA and DHA of L. vannamei generally reflected the composition of dietary fatty acids with the highest DHA and EPA found in L. vannamei fed FIO. The activities of fatty acid synthetase, acyl-CoA, diacylgycerol acyltransferase 2, elongase of long-chain fatty acids family member 6, 45 and 46 fatty acid desaturases of shrimp fed SBL were significantly lower than those fed BFT. The results indicated that fish oil could not be the only lipid source for L. vannamei cultured at low salinity, and the shrimp fed non-fish oil diet with a suitable proportion of PUFAs could obtain the same growth and survival rate as those fed diets with fish oil. (C) 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommens.org/licenses/by-nc-nd/4.0/).
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