The effects of five dietary lipid sources on growth,body composition and antioxidant parameters of the clamworm,Perinereis aibuhitensis |
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| Authors: | Fu Lv Qing Nie Tian Wang Aimin Wang Wenping Yang Fei Liu Yebing Yu Linlan Lv |
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| Affiliation: | 1. Jiangsu Key Laboratory of Biochemistry and Biotechnology of Marine Wetland, College of Marine and Biology Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu, China;2. Key Open Laboratory for Genetic Breeding of Aquatic Animals and Aquaculture Biology Certificated by the Ministry of Agriculture, Wuxi College of Fisheries of Nanjing Agriculture University, Wuxi, Jiangsu, China |
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| Abstract: | The clamworm Perinereis aibuhitensis is a commercially important polychaete in China, but knowledge about the nutritional demands of this species is limited. In this study, the effects of five lipid sources in the diet, namely fish oil (FO), soyabean oil (SO), rapeseed oil (RO), cottonseed oil (CO) and mixed vegetable oil (MO), on growth, whole‐body composition and antioxidant parameters of juvenile P. aibuhitensis were evaluated. The results showed that clamworms fed the CO diet had higher specific growth rate (SGR) and protein efficiency ratio (PER) than the other treatments. The accumulation of longer‐chain polyunsaturated fatty acids (PUFAs) was observed in P. aibuhitensis, suggesting that P. aibuhitensis had the ability to elongate and desaturate PUFAs with 18C to form longer‐chain PUFAs. The values of n‐3/n‐6 in clamworms fed vegetable oil diets (ranged from 0.20 to 0.31) were much closer to the recommended values for human food compared with FO diet (2.47). Analysis of the antioxidant parameters revealed that clamworms fed the CO diet suffered lower peroxidation burden than those fed FO diet. These results suggested that cottonseed oil is a suitable lipid source for P. aibuhitensis feeds. |
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| Keywords: | cottonseed oil fatty acid composition fish oil
Perinereis aibuhitensis
rapeseed oil soyabean oil |
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