Growth,survival, and fatty acid composition of Indian white shrimp <Emphasis Type="Italic">Fenneropenaeus indicus</Emphasis> (Milne Edwards) fed diets containing different levels of vitamin E and lipid |
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Authors: | H Ouraji A M Abedian Kenari B Shabanpour A Shabani M Sodagar S A Jafarpour G H Ebrahimi |
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Institution: | (1) Department of Fisheries, Sari Agricultural Sciences and Natural Resources University (SANRU), P. O. Box 578, Sari, Iran;(2) Department of Fisheries, Faculty of Natural Resources and Marine Science, Tarbit Modares University, GPO Box 64414-356, Noor, Mazandaran, Iran;(3) Department of Fisheries, Gorgan University of Agricultural Sciences and Natural Resources, GPO Box 49138-15739, Gorgan, Golestan, Iran |
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Abstract: | The objective of this experiment was to determine the effects of two levels of vitamin E (100 and 300 mg/kg diet) along with
two levels of lipid (9 and 14%) and their interaction on growth performance of Indian white shrimp and consequently to evaluate
the fatty acid composition and lipid stability of its muscle tissue during frozen storage. Growth of juvenile Indian white
shrimp was not significantly affected by dietary vitamin E and lipid levels. Muscle lipid content of shrimp fed diets with
14% lipid was significantly higher than that of with 9% lipid. Obvious effects of the increase in dietary lipid level on muscle
fatty acid composition were significant decrease in proportion of 16:0 and increase in proportion of 20:5n-3. The content
of vitamin E concentration in shrimp muscle reflected dietary vitamin E concentration and ranged from 6.68 to 14.8 mg/kg muscle
corresponding to two (100 and 300 mg/kg) levels of vitamin E in fish diet, respectively. Subsequently, results showed that
by increasing the concentration of vitamin E from 100 to 300 mg/kg in diet, the rate of lipid oxidation in the muscle tissue
during frozen storage was reduced and, as a result, caused higher HUFA retention in muscle of shrimp fed diet with high lipid
level. |
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