Data/hora: 06/06/2024 00:32:01

Provedor de dados: | Open Marine Archive
País: | Belgium
Título: | Impact of starvation and of feeding algal and artificial diets on the lipid content and composition of juvenile oysters &lt;i&gt;(Crassostrea gigas)&lt;/i&gt; and clams &lt;i&gt;(Tapes philippinarum)&lt;/i&gt;
Autores: | Caers, M.; Coutteau, P.; Sorgeloos, P.
Data: | 2000
Ano: | 2000
Palavras-chave: | Biochemical analysis; Feeding experiments; Juveniles; Lipids; Starvation; Crassostrea gigas [Portuguese oyster]; Isochrysis galbana.
Resumo: | The present study evaluated the effect of starvation and of feeding various algal and lipid-supplemented diets on the lipid content and lipid class distribution in the polar and neutral lipids of early juvenile oysters (&lt;i&gt;Crassostrea gigas&lt;/i&gt; and clams (&lt;i&gt;Tapes philippinarum&lt;/i&gt;). &lt;i&gt;T. philippinarum&lt;/i&gt; was starved, fed a mixed algal diet (&lt;i&gt;Tetraselmis suecica&lt;/i&gt; and &lt;i&gt;Isochrysis galbana&lt;/i&gt; (clone T-iso) or solely &lt;i&gt;T. suecica&lt;/i&gt; at three different feeding rations, either supplemented or not supplemented with lipid emulsions. &lt;i&gt;C. gigas&lt;/i&gt; was fed &lt;i&gt;T. suecica&lt;/i&gt; with and without the supplementation of lipid emulsions or liposomes. When &lt;i&gt;T. philippinarum&lt;/i&gt; and &lt;i&gt;C. gigas&lt;/i&gt; were fed solely &lt;i&gt;T. suecica&lt;/i&gt;, no qualitative and only minor quantitative differences were observed between the lipid class profile of both species. The major neutral lipids were triglycerides (TAG) and free serols plus diglycerides (FS + DAG), whereas the polar lipids were dominated by phosphatidylcholine (PC), phosphatidylethanolamine (PE) and phosphatidylinositol plus ceramideaminoethanol phosphonate (PI + CAEP). An increase of the algal feeding ration resulted in an increase of the lipid content of spat which was associated with a significant augmentation of the TAG level (as percentage of the total lipids and as percentage of the neutral lipids). Lipid supplementation evoked a similar though more pronounced effect. Starvation resulted in a significant decline of the lipid content and a complete depletion of the TAG reserve. Contrary to the neutral lipids (NL), the relative proportion (percentage of total polar lipids, PL) of the individual PL classes was hardly affected by the diet. The importance of lipid and TAG reserves in early juveniles is discussed.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2679

Relação:

info:eu-repo/semantics/altIdentifier/wos/000088186100015

info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1007/s002270000295

Fonte: | %3Ci%3EMar.+Biol.+%28Berl.%29+136%285%29%3C%2Fi%3E%3A+891-899.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1007%2Fs002270000295%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1007%2Fs002270000295%3C%2Fa%3E
Fonte: | info:eu-repo/semantics/restrictedAccess