Optimal quantity and ratio of n-3 highly unsaturated fatty acid for juvenile Penaeus monodon (PL 15)
1995
Suwanich, R. | Piyatiratitivorakul, S. | Kittakoop, P. | Menasveta, P. (Chulalongkorn Univ., Bangkok (Thailand). Faculty of Science. Biotechnology Multidisplinary Programe)
n-3 highly unsaturated fatty acids (n-3 HUFAs) is essential for shrimp metabolisms. Shrimp has a limited capability in synthesizing these n-3 HUFAs. To study the optimal requirement of n-3 HUFAs and eicosapentaenoic acid/docosahexaenoic acid ratio (EPA/DHA) in shrimp, juveniles Penaeus monodon (PL 15) were fed for 30 days with diets containing 0.33, 0.41 or 0.77 percent n-3 HUFAs with the EPA/DHA ratio of 0.35, 0.56 or 0.87 in each group. The control diet contained 0.14 percent n-3 HUFAs with the EPA/DHA ratio of 0.35. The sources of n-3 HUFAs were semi-refined oil, fish oil and refined tuna oil with EPA:DHA ratios of 7:23 and 17:13, respectively. Growths of juveniles P. monodon (PL 15) fed with diets containing 0.77 and 0.33 percent n-3 HUFAs were significantly higher than those fed with control diets (p0.05).
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