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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

The fatty acid compositions of total, neutral and polar lipids in wild and farmed lambari (Astyanax altiparanae) (Garutti & Britski, 2000) broodstock

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Author(s):
Goncalves, Ligia Uribe [1] ; Parisi, Giuliana [2] ; Bonelli, Antonio [2] ; Sussel, Fabio Rosa [1] ; Macedo Viegas, Elisabete Maria [1]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo, Fac Zootecnia & Engn Alimentos, Dept Zootenia, Sao Paulo - Brazil
[2] Univ Florence, Dipartimento Biotecnol Agr, Florence - Italy
Total Affiliations: 2
Document type: Journal article
Source: AQUACULTURE RESEARCH; v. 45, n. 2, p. 195-203, JAN 2014.
Web of Science Citations: 14
Abstract

One way to develop broodstock fish diets is to determine the compositions of wild broodstock tissues and attempt to replicate these compositions in the eggs of farmed fish via dietary manipulation. We collected 30 wild and 30 farmed lambari females that were in the reproductive stage. The extraction and separation of polar and neutral fractions and the saponification and methylation of lipids were performed and analysed in the muscles, livers and ovaries to determine the compositions of the fatty acids via gas chromatography. Regardless of habitat, lambaris mobilize large amounts of fat to the ovaries during the reproductive period, in addition to highly unsaturated fatty acids, such as arachidonic, eicosapentaenoic and docosahexaenoic acids. The wild lambaris were observed to contain higher levels of various fatty acids, including linoleic acid, which is an essential fatty acid. The most abundant fatty acid that was observed in the commercial diet was linoleic acid, which was supplied in all fish farmed tissues. The commercial diet has low AA, EPA and DHA contents, and, higher levels of these fatty acids were recorded in the tissues of farmed lambari, which suggests that this species are able to elongate and desaturate precursors, linoleic and linolenic acids, into highly unsaturated fatty acids. (AU)

FAPESP's process: 07/53876-0 - Reproductive performance of lambaris (Astyanax altiparanae) fed with oil obtained from fish residues
Grantee:Ligia Uribe Gonçalves
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)