FN Archimer Export Format
PT J
TI The Digestive Function of Pseudoplatystoma punctifer Early Juveniles Is Differentially Modulated by Dietary Protein, Lipid and Carbohydrate Content and Their Ratios
BT 
AF Castro-Ruiz, Diana
   Andree, Karl B.
   Solovyev, Mikhail M.
   Fernández-Méndez, Christian
   García-Dávila, Carmen
   Cahu, Chantal
   Gisbert, Enric
   Darias, Maria J.
AS 1:1;2:2;3:3,4;4:5;5:1;6:6;7:2;8:7;
FF 1:;2:;3:;4:;5:;6:PDG-RBE-PFOM;7:;8:;
C1 Laboratorio de Biología y Genética Molecular (LBGM), Dirección de Investigación en Ecosistemas Acuáticos Amazónicos (AQUAREC), Instituto de Investigaciones de la Amazonía Peruana (IIAP), Carretera Iquitos-Nauta km 4.5, Iquitos, Peru
   Aquaculture Program, Centre de Sant Carles de la Ràpita (IRTA-SCR), Institut de Recerca i Tecnologìa Agroalimentaries (IRTA), Crta. Poble Nou km 5.5, 43540 Sant Carles de la Ràpita, Spain
   Institute of Systematics and Ecology of Animals Siberian Branch, Russian Academy of Sciences, 11 Frunze St., 630091 Novosibirsk, Russia
   Tomsk State University, 36 Lenin Ave., 634050 Tomsk, Russia
   Laboratorio de Bromatología, Dirección de Investigación en Ecosistemas Acuáticos Amazónicos (AQUAREC), Instituto de Investigaciones de la Amazonía Peruana (IIAP), Carretera Iquitos-Nauta km. 4.5, Iquitos, Peru
   LEMAR, Univ Bretagne, CNRS, Ifremer, IRD, 29280 Plouzané, France
   MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Montpellier, France
C2 IIAP, PERU
   IRTA, SPAIN
   RUSSIAN ACAD SCI, RUSSIA
   UNIV TOMSK STATE, RUSSIA
   IIAP, PERU
   IFREMER, FRANCE
   IRD, FRANCE
SI BREST
SE PDG-RBE-PFOM
UM LEMAR
   MARBEC
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   DOAJ
   copubli-france
   copubli-p187
   copubli-europe
   copubli-int-hors-europe
   copubli-sud
IF 3.231
TC 7
UR https://archimer.ifremer.fr/doc/00678/79019/81420.pdf
LA English
DT Article
DE ;neotropical fish;aquaculture;digestive enzymes;gene expression;nutrition;juveniles;histology;development;macronutrients;diet
AB Pseudoplatystoma punctifer is an Amazonian catfish highly appreciated for its high flesh quality, size, and commercial value. Its aquaculture is pursued to satisfy the demands of an increasing population in the region. However, knowledge of the nutritional needs during the early life stages is necessary for improving growth and reducing the incidence of cannibalism, factors that limit the success of its commercial farming. This study aimed at evaluating the influence of four diets containing different protein and lipid levels (30:15, 30:10, 45:15, or 45:10 in %) in the digestive physiology and performance of early juveniles. The results showed that the dietary protein:lipid as well as carbohydrate levels and ratios influenced differently the whole-body proximate composition, the digestive physiology and development, and hence growth and survival. The 45:15 diet promoted the best growth, survival, and the most rapid development of the digestive system, as shown at histological (higher number of hepatocytes, goblet cells in the anterior intestine and enterocytes in all intestinal portions, and longer folds in the posterior intestine), molecular (highest amylase, lipoprotein lipase, phospholipase, trypsinogen, and pepsinogen gene expression), and biochemical (highest lipase and pepsin activities and higher alkaline phosphatase:leucine alanine peptidase activity ratio) levels. Lipids were favored over carbohydrates as source of energy, with lipids promoting a protein-sparing effect at adequate energy:protein ratio. Carbohydrate content higher than 25% was excessive for this species, leading to unbalanced lipid metabolism and fat deposition in the liver. 
PY 2021
PD FEB
SO Animals
SN 2076-2615
PU MDPI AG
VL 11
IS 2
UT 000622072400001
DI 10.3390/ani11020369
ID 79019
ER

EF