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Effect of dietary vitamin A on Senegalese sole (Solea senegalensis) skeletogenesis and larval quality ArchiMer
Fernandez, Ignacio; Pimentel, Marta S.; Ortiz-delgado, Juan B.; Hontoria, Francisco; Sarasquete, Carmen; Estevez, Alicia; Zambonino, Jose-luis; Gisbert, Enric.
The effects of different levels of vitamin A (VA) in Senegalese sole larval performance and development were evaluated by means of a dietary dose-response experiment using enriched Artemia metanauplii as a carrier of this micronutrient. Larvae were fed from 6 to 27 days post hatch (dph) with enriched Artemia containing graded levels of total VA (1.3, 2.1, 4.5 and 12.9 mu g VA mg(-1) DW). The content of VA in live prey directly affected its accumulation in larvae and early juveniles. Retinyl palmitate accumulated during larval ontogeny, whereas retinol showed the opposite trend, decreasing from hatching until 41 dph and then remaining constant until the end of the study. Inmetamorphic larvae (10 and 15 dph), VA did not affect the number of thyroid follicles...
Tipo: Text Palavras-chave: Deformities; Thyroid hormones; Skeleton; Vitamin A; Larval quality; Solea senegalensis; Senegalese sole.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-7385.pdf
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Larval performance and skeletal deformities in farmed gilthead sea bream (Sparus aurata) fed with graded levels of Vitamin A enriched rotifers (Brachionus plicatilis) ArchiMer
Fernandez, I; Hontoria, F; Ortiz Delgado, J; Kotzamanis, Y; Estevez, A; Zambonino, Jose-luis; Gisbert, E.
Several nutritional studies have found a direct effect of several vitamins in chondrogenic and osteogenic development during early life stages of marine fish species. In the present study, the effect of vitamin A (VA) in gilthead sea bream skeletogenesis was evaluated by means of four different dietary regimes (enriched rotifers) containing increasing levels of total VA (75,109, 188 and 723 ng total VA mg(-1) DW). Dietary treatments were offered to larvae during the rotifer-feeding phase (4-20 days after hatching), while later all groups were fed with Artemia nauplii and weaned onto the same inert diet. Different dietary doses of VA affected gilthead sea bream larval growth, survival, performance (maturation of the digestive system) and quality (incidence...
Tipo: Text Palavras-chave: Deformities; Skeleton; Vitamin A; Larval quality; Sparus aurata; Gilthead sea bream.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-4937.pdf
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Relation between lipid and fatty acid composition of eggs and larval survival in white pacific shrimp (Penaeus vannamei, Boone, 1931) ArchiMer
Palacios, Elena; Rehault, Jean Pierre; Heras, Horacio; Marty, Yannick; Moal, Jeanne; Samain, Jean-francois.
In this study, lipid classes and fatty acid composition were determined in eggs of P. vannamei as a function of survival to zoea III stage. Spawns were reared individually to zoea III and grouped, according to their final survival to this larval stage, into spawns of high and low survival. Eggs of individual spawns were analyzed for lipid and fatty acid composition of neutral and polar lipids and the results were then grouped according to survival to zoea III. The lipids within each group (high and low survival to zoea III) were pooled for the separation of phospholipids and the analysis of their fatty acid composition. Higher levels of triglycerides, carotenoids, and linoleic (18: 2n-6) acid in eggs were associated with improved survival to zoea III....
Tipo: Text Palavras-chave: Triglycerides; Phospholipid; Larval quality; Larval culture; Carotenoid.
Ano: 2001 URL: https://archimer.ifremer.fr/doc/2002/publication-786.pdf
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