Pigmentary and Zootechnical Responses of Juvenile Litopenaeus vannamei (Boone, 1931) Maintained on Diets Supplemented with Xanthophylls of Marigold Tagetes erecta Flowers

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dc.contributor.author Piña-Valdéz, Pablo
dc.contributor.author Aguirre-Hinojosa, Eduardo
dc.contributor.author Garza-Aguirre, María del Carmen
dc.contributor.author Montoya-Olvera, Ricardo
dc.contributor.author Torres-Quiroga, José Odón
dc.contributor.author Nieves-Soto, Mario
dc.date.accessioned 2012-10-15T23:32:58Z
dc.date.available 2012-10-15T23:32:58Z
dc.date.issued 2012
dc.description.abstract Practical diets supplemented with 75 or 150 ppm xanthophylls (75% zeaxanthin, 15% lutein) industrially extracted from marigold (Tagetes erecta L.) flowers increased the astaxanthin and total carotenoid concentrations in juvenile Litopenaeus vannamei, compared to shrimp fed a practical control diet. Our results paralleled or exceeded those obtained with a diet containing 75 ppm supplementary synthetic astaxanthin. The post-feeding astaxanthin concentration accounted for more than 84% of the total carotenoid concentration in shrimp fed either diet, while beta-carotene, zeaxanthin, lutein, and other non-identifiable carotenoids comprised a minority of the total concentration. That this was seen in both the tail exoskeleton and abdominal muscle indicates that L. vannamei can metabolize precursor xanthophylls to produce astaxanthin. In most cases, more than 60% of the astaxanthin was esterified. In general, survival improved in shrimps fed the supplemented diets compared to those fed the control diet. There were no differences in growth.
dc.format.extent 8 pages
dc.identifier.issn 0792-156X
dc.identifier.other IJA_64.2012.795
dc.identifier.uri http://hdl.handle.net/10524/31830
dc.relation.ispartofseries The Israeli Journal of Aquaculture - Bamidgeh
dc.subject marigold
dc.subject pigmentation
dc.subject survival
dc.subject Litopenaeus vannamei
dc.subject.lcsh Fish culture--Israel.
dc.subject.lcsh Fish culture.
dc.title Pigmentary and Zootechnical Responses of Juvenile Litopenaeus vannamei (Boone, 1931) Maintained on Diets Supplemented with Xanthophylls of Marigold Tagetes erecta Flowers
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Volume 64, 2012