Abstract 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‰. 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, Δ5 and Δ6 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.
Evaluation of different lipid sources in diet of pacific white shrimp Litopenaeus vannamei at low salinity
Ke Chen,Erchao Li,Chang Xu,Xiaodan Wang,Heizhao Lin,J. Qin,Liqiao Chen
Published 2015 in Aquaculture Reports
ABSTRACT
PUBLICATION RECORD
- Publication year
2015
- Venue
Aquaculture Reports
- Publication date
2015-11-01
- Fields of study
Agricultural and Food Sciences, Biology
- Identifiers
- External record
- Source metadata
Semantic Scholar
CITATION MAP
EXTRACTION MAP
CLAIMS
CONCEPTS
- bft diet
The experimental diet formulated with beef tallow as the lipid source.
Aliases: beef tallow
- growth performance
The production outcome used to assess how the diets affected shrimp growth.
Aliases: weight gain, growth
- lipid metabolism enzymes
The set of enzymes measured in shrimp tissues that participate in lipid synthesis and modification.
Aliases: FAS, acyl-CoA, DGAT2, ELOVL6, fatty acid synthetase, diacylgycerol acyltransferase 2, elongase of long-chain fatty acids family member 6, Δ5 fatty acid desaturase, Δ6 fatty acid desaturase
- litopenaeus vannamei
The shrimp species used as the cultured animal in the feeding trial.
Aliases: pacific white shrimp
- low salinity
The culture condition with seawater salinity set to 3‰ during the feeding experiment.
Aliases: 3‰ salinity, 3 per mille salinity
- sbl diet
The experimental diet combining soybean oil, beef tallow, and linseed oil as the lipid source.
Aliases: SBO + BFT + LNO
- survival rate
The proportion of shrimp that remained alive over the feeding period.
Aliases: survival
- whole-body fatty acid composition
The fatty acid profile measured across the shrimp's whole-body tissues.
Aliases: whole body fatty acid composition
REFERENCES
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