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Titolo:
Feeding larvae of winter flounder Pseudopleuronectes americanus (Walbaum) with live prey or microencapsulated diet: linear growth and protein, RNA and DNA content
Autore:
Ben Khemis, I; de la Noue, J; Audet, C;
Indirizzi:
Univ Laval, GREREBA, Quebec City, PQ G1K 7P4, Canada Univ Laval Quebec City PQ Canada G1K 7P4 Quebec City, PQ G1K 7P4, Canada Univ Laval, Dept Anim Sci, Quebec City, PQ G1K 7P4, Canada Univ Laval Quebec City PQ Canada G1K 7P4 Quebec City, PQ G1K 7P4, Canada Univ Quebec, Inst Sci Mer Rimouski, Rimouski, PQ G5L 3A1, Canada Univ Quebec Rimouski PQ Canada G5L 3A1 uski, Rimouski, PQ G5L 3A1, Canada
Titolo Testata:
AQUACULTURE RESEARCH
fascicolo: 4, volume: 31, anno: 2000,
pagine: 377 - 386
SICI:
1355-557X(200004)31:4<377:FLOWFP>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
SCOPHTHALMUS-MAXIMUS L; SEABREAM SPARUS-AURATA; FATTY-ACID COMPOSITION; HIPPOGLOSSUS-HIPPOGLOSSUS L; MARINE FISH LARVAE; GILTHEAD SEABREAM; DIGESTIVE ENZYMES; BIOCHEMICAL-COMPOSITION; REPRODUCTIVE SUCCESS; TURBOT LARVAE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
59
Recensione:
Indirizzi per estratti:
Indirizzo: Audet, C Univ Laval, GREREBA, Cite Univ, Quebec City, PQ G1K 7P4, Canada Univ Laval Cite Univ Quebec City PQ Canada G1K 7P4 1K 7P4, Canada
Citazione:
I. Ben Khemis et al., "Feeding larvae of winter flounder Pseudopleuronectes americanus (Walbaum) with live prey or microencapsulated diet: linear growth and protein, RNA and DNA content", AQUAC RES, 31(4), 2000, pp. 377-386

Abstract

A commercial microencapsulated diet was used as a total or partial replacement of live prey for feeding larvae of winter flounder Pseudopleuronectes americanus (Walbaum), a potential alternative finfish species for coldwatermarine aquaculture. Growth performance (morphometric measurements and biochemical composition) and nutritional condition (RNA/DNA ratios) of larvae fed live prey (Brachionus plicatilis Muller), a microencapsulated diet or a mixed diet of live prey and microcapsules were compared. Newly hatched larvae were unable to digest microencapsulated diet; live prey at initial feeding was required for their survival and growth. Larvae offered a mixed diet showed slower growth than larvae fed exclusively with live prey. However, at the onset of stomach differentiation, RNA/DNA ratios (indicators of protein synthesis potential) of the larvae fed both diets became similar. We suggest that, at that stage (size 5.5-6.3 mm), enzymatic activity had developed enough to allow digestion of inert food. As the RNA/DNA ratio is a good indicator of nutritional condition, it appears to be an interesting tool forthe assessment of diet adequacy in marine larval feeding technology.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 16:39:24