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Growth performance and fatty acid composition in shrimp, Litopenaeus vannamei fed with different concentrations of Dunaliella salina extract
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Paria Akbary   1, Mohsen Ali2 , Amin Gholamhosseini3 , Zahra Amini khoei4 |
1- chabahar Maritime University
2- Shiraz Universiy
3- Shiraz University
4- Off- shore Fisheries Research Center, Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Educations and Extension Organization (AREEO), Chabahar, Iran |
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Abstract: (2220 Views) |
| This study investigated the growth performance and fatty acid composition of Western whiteleg shrimp (Litopenaeus vannamei) fed with different levels of Dunaliella salina extract (DE) PL with an average weight of 0.86 ± 0.01g were fed with 3 types of diets containing 0.5, 1.5 and 1.5 g DE /kg diet and control diet (without DE) for 60 days. (A total of 4 treatments and 3 repetitions per treatment). The best weight gain (141.38 ± 21.35%), specific growth ratio (1.69 ± 0.55%) and protein efficiency ratio (2.79± 0.42%) were observed in shrimp fed with 1 g/kg of DE diet. In diets containing 0.5 and 1 g DE/kg feed, poly unsaturated fatty acid (PUFA) value significantly increased (p<0.05). Arachidonic acid (C20:4n-6), linoleic acid (C20:2n-6) and Docosahexaenoic acid (C22:5n-3) levels of shrimp receiving at 0.5 and 1 g DE/kg feed level were significantly higher than those fed with control diet(p<0.05). In conclusion, the incorporation of extract from D.salina 1 g/kg doses improves function of growth and fatty acid composition of body in L. vannamei shrimp. |
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| Keywords: Growth performance, Dunaliella salina, Fatty acid composition, Litopeneaus vannamei. |
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Full-Text [PDF 567 kb]
(597 Downloads)
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Type of Study: Research |
Subject:
فيزيولوژي آبزيان
Received: 2019/10/28 | Accepted: 2020/10/31 | Published: 2020/10/31
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