Nom du corpus

Corpus Systématique Animale

Titre du document

Proteolysis by juvenile sea bass ( Dicentrarchus labrax ) gastrointestinal enzymes as a method for the evaluation of feed proteins

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Dicentrarchus labrax
  • post larvae
  • proteolytic enzymes
  • feeds
  • growth rate
Nom du fichier dans la ressource
Poissons_v2b_004273
Auteur(s)
  • P. Lindner 1
  • A. Eshell 1
  • S. Kolkovski 2
  • A. Tandler 2
  • S. Harpaz 3
Affiliation(s)
  • 1) Department of Food Sciences, Agricultural Research Organization, The Volcani Center, P.O. Box 6, 50250, Bet-Dagan, Israel
  • 2) National Center for Mariculture, Israel Oceanographic and Limnological Research, P.O. Box 1212, 88112, Eilat, Israel
  • 3) Department of Aquaculture, Agricultural Research Organization, The Volcani Center, P.O. Box 6, 50250, Bet-Dagan, Israel
Résumé

Protein digestibility by gastrointestinal homogenates of Dicentrarchus labrax, was investigated in 5 feeds in relation to their amino acids composition and their ability to sustain growth of D. labrax post larval juveniles. Gastric proteolysis was found to contribute <25% of the total proteolytic capacity. Correlation was found between intestinal proteolytic capacity and the feed protein content of three pairs of amino acids. The sum of basic amino acids, arginine + lysine in the feed protein exhibited a positive correlation with susceptibility to proteolysis. The sum of the acid amino acids glycine and proline showed a negative correlation. Comparison of the intestinal proteolytic enzymatic activities in 3 growth stages of this species revealed similar profiles. Post larval and large juveniles had similar proteolytic capacities when compared on the basis of equal activity on an artificial substrate of Trypsin. Specific growth rates of post larval fish fed on these 5 feeds correlated positively with their protein digestibility as measured with large juvenile's intestinal homogenates. The results suggest that in this species, the efficiency of feeds in sustaining growth at the post larval stage can be estimated by measuring the feed protein digestibility by the proteolytic system of larger sized juveniles.

Catégories Science-Metrix
  • 1 - applied sciences
  • 2 - agriculture, fisheries & forestry
  • 3 - fisheries
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
  • 1 - Health Sciences ; 2 - Medicine ; 3 - General Medicine
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Physiology
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Biochemistry
Catégories WoS
  • 1 - science ; 2 - physiology
  • 1 - science ; 2 - fisheries
  • 1 - science ; 2 - biochemistry & molecular biology
Identifiant ISTEX
702FCC0F80BEBB1C73AF1DA7DF774722C9362403
Revue

Fish Physiology and Biochemistry

Année de publication
1995
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
8.997
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-3QL1SFLV-H
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