Consulta: creatorFacets:"Gisbert, Enric"
Registros recuperados: 12
Data/hora: 01/06/2024 04:47:26

Protein hydrolysates from yeast and pig blood as alternative raw materials in microdiets for gilthead sea bream (Sparus aurata) larvae
Provedor de dados: 5
Autores: Gisbert, Enric; Skalli, Ali; Fernandez, Ignacio; Kotzamanis, Yannis; Zambonino, Jose Luiz; Fabregat, Rogelio.
In this study, we have evaluated the incorporation of two types of protein hydrolysates at 9 and 12% levels of inclusion, one from yeast (Saccharomyces cerevisiae, YPH) and another one from pig blood (PBPH), in microdiets for gilthead sea bream (Sparus aurora) larvae, and compared these results to a microdiet containing fish protein hydrolysate and another group only fed with enriched live prey (rotifers and Artemia). The trial consisted in substituting up to 75% (wt/wt) the enriched Artemia with the experimental microdiets from 15 to 40 days post-hatch, whereas larvae were exclusively fed on microdiets from 40 to 55 dph. Protein hydrolysates used in the present study were obtained from different raw materials (yeast, pig blood and fish protein...
Tipo: Text
Palavras-chave: Digestive enzymes; Larvae; Gilthead sea bream; Protein hydrolysate; Skeletal deformities; Sparus aurata.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00085/19584/17467.pdf

Intake of high levels of vitamin A and polyunsaturated fatty acids during different developmental periods modifies the expression of morphogenesis genes in European sea bass (Dicentrarchus labrax)
Provedor de dados: 5
Autores: Villeneuve, Laure; Gisbert, Enric; Moriceau, Jacques; Cahu, Chantal; Zambonino, Jose-luis.
The effect of the feeding period on larval development was investigated in European sea bass larvae by considering the expression level of some genes involved in morphogenesis. Larvae were fed a control diet except during three different periods (period A: from 8 to 13 d post-hatching (dph); period B: from 13 to 18 dph; period C: from 18 to 23 dph) with two compound diets containing high levels of vitamin A or PUFA. European sea bass morphogenesis was affected by these two dietary nutrients during the early stages of development. The genes involved in morphogenesis could be modulated between 8 and 13 dph, and our results indicated that retinoids and fatty acids influenced two different molecular pathways that in turn implicated two different gene cascades,...
Tipo: Text
Palavras-chave: Retinoid pathway; Morphogenesis; Vitamin A; PUFA; Sea bass larvae.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1215.pdf

The Digestive Function of Pseudoplatystoma punctifer Early Juveniles Is Differentially Modulated by Dietary Protein, Lipid and Carbohydrate Content and Their Ratios
Provedor de dados: 5
Autores: Castro-ruiz, Diana; Andree, Karl B.; Solovyev, Mikhail M.; Fernández-méndez, Christian; García-dávila, Carmen; Cahu, Chantal; Gisbert, Enric; Darias, Maria J.
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...
Tipo: Text
Palavras-chave: Neotropical fish; Aquaculture; Digestive enzymes; Gene expression; Nutrition; Juveniles; Histology; Development; Macronutrients; Diet.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00678/79019/81420.pdf

Influence of dietary phospholipids on early ontogenesis of fish
Provedor de dados: 5
Autores: Cahu, Chantal; Gisbert, Enric; Villeneuve, Laure A. N.; Morais, Sofia; Hamza, Neila; Wold, Per-avid; Zambonino, Jose-luis.
The aim of this paper is to provide explanations of how dietary phospholipid (PL) globally improves fish larval development, including growth and survival, digestive functions and skeletal development, and to propose optimal PL levels and sources in fish larval diets. Dietary incorporation of 8-12% PL related to dry matter (d.m.) promotes growth and enhanced survival in various species. Marine source PL, incorporating highly unsaturated fatty acids, was most efficient than soybean lecithin. This beneficial effect was explained by an enhancement in digestive functions, assessed by digestive enzyme activities and histomorphology. Nevertheless, 1.5-2.5% highly unsaturated fatty acids related to diet d.m. supplied by PL improved growth, survival and skeletal...
Tipo: Text
Palavras-chave: Gene regulation; Skeletal development; Digestive functions; Fish larvae; Phospholipid.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6460.pdf

Ontogeny of the digestive enzyme activity of the Amazonian pimelodid catfish Pseudoplatystoma punctifer (Castelnau, 1855)
Provedor de dados: 5
Autores: Castro-ruiz, Diana; Mozanzadeh, Mansour Torfi; Fernández-méndez, Christian; Andree, Karl B.; García-dávila, Carmen; Cahu, Chantal; Gisbert, Enric; Darias, Maria J.
The aim of the study was to evaluate the functional ontogeny of the digestive system of Pseudoplatystoma punctifer through the analysis of the activity of the main intestinal (alkaline phosphatase, aminopeptidase N, maltase and leucine-alanine peptidase), pancreatic (trypsin, chymotrypsin, total alkaline proteases, bile-salt activated lipase and amylase) and gastric (pepsin) enzymes. Larvae were raised in triplicate in a recirculation system from 4 to 27 days post fertilization (dpf) at an initial density of 90 larvae L−1, 27.8 ± 0.7 °C and 0 L: 24D photoperiod. Larvae were fed from 4 to 17 dpf with Artemia nauplii and weaned onto an experimentally formulated feed (crude protein content ~ 45%; crude fat content ~ 10%; crude carbohydrate ~ 8%) within...
Tipo: Text
Palavras-chave: Pseudoplatystoma punctifer; Ontogeny; Enzymatic activity; Digestive system; Brush border; Pancreatic enzymes; Gastric enzymes.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00479/59082/61723.pdf

A histological study on the development of the digestive system of Pseudosciaena crocea larvae and juveniles
Provedor de dados: 5
Autores: Mai, Kangsen; Yu, Hairui; Ma, Hongming; Duan, Qingyuan; Gisbert, Enric; Zambonino, Jose-luis; Cahu, Chantal.
The ontogenetic development of the gut and accessory organs in large yellow croaker Pseudosciaena crocea was investigated using light microscopy from hatching up to the juvenile stage (40 days post hatch, dph). At 3 dph (mean +/- S.D., 4.1 +/- 0.1 mm total length, L-T), coinciding with the buccopharynx opening, larvae started to feed exogenously, and the gut consisted of a well-developed buccopharynx, a partially-differentiated oesophagus and an intestine divided in three regions (anterior intestine, intermediate intestine and rectum). Yolk reserves were not completely depleted at the onset of exogenous feeding, and a period of mixed nutrition was observed up to 6 dph (4.3 +/- 0.1 mm L-T) when yolk was definitively exhausted. Important morphological...
Tipo: Text
Palavras-chave: Pseudosciaena crocea; Ontogenetic development; Large yellow croaker; Histology; Digestive system.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-930.pdf

Allometric growth patterns and development in larvae and juveniles of thick-lipped grey mullet Chelon labrosus reared in mesocosm conditions
Provedor de dados: 5
Autores: Ben Khemis, Ines; Gisbert, Enric; Alcaraz, Carles; Zouiten, Dora; Besbes, Raouf; Zouiten, Amina; Masmoudi, Ahmed Slaheddine; Cahu, Chantal.
Allometric growth and ontogeny were studied in thick-lipped grey mullet Chelon labrosus reared in mesocosms from 1 to 71 day post hatching (dph). Multivariate allometric analysis of morphometric growth distinguished three distinct developmental stanzas separated by two morphometric metamorphosis lengths (L-m1=4.46 +/- 0.06mm; L-m2= 28.56 +/- 1.04mm). Body mass growth also showed three distinct episodes separated by two inflections, correlated with morpho-functional changes. First episode concerned pre-flexion larvae and ended around 4.5mm-L-T (14-dph), coinciding with estimated L-m1. It was distinguished by reduced growth, but intense morphogenesis and differentiation processes. Organogenesis and allometric changes indicated that development priorities...
Tipo: Text
Palavras-chave: Thick-lipped grey mullet; Chelon labrosus; Larval development; Allometric growth; Mesocosm.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00166/27742/26425.pdf

Effect of dietary vitamin A on Senegalese sole (Solea senegalensis) skeletogenesis and larval quality
Provedor de dados: 5
Autores: 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

Dietary phospholipids are more efficient than neutral lipids for long-chain polyunsaturated fatty acid supply in European sea bass Dicentrarchus labrax larval development
Provedor de dados: 5
Autores: Gisbert, Enric; Villeneuve, Laure; Zambonino, Jose-luis; Quazuguel, Patrick; Cahu, Chantal.
We evaluated the effects of dietary lipid class (phospholipid vs. neutral lipid) and level of n-3 long-chain PUFA (LC-PUFA) on the growth, digestive enzymatic activity, and histological organization of the intestine and liver in European sea bass larvae. Fish were fed from the onset of exogenous feeding at 7 to 37 d post-hatch with five isoproteic and isolipidic compound diets with different levels of EPA and DHA. Diet names indicated the percentage of EPA and DHA contained in the phospholipids (PL) and neutral lipids (NL), as follows: PL5, PL3, PL1, NL1, and NL3. Histological observations showed different patterns of lipid absorption and accumulation in the intestinal mucosa depending on the level and nature of the dietary lipid fraction. Fish fed high...
Tipo: Text
Palavras-chave: Histology; Digestive system; Phospholipid; Larvae; Dicentrarchus labrax; Dietary.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-929.pdf

Coordinated gene expression during gilthead sea bream skeletogenesis and its disruption by nutritional hypervitaminosis A
Provedor de dados: 5
Autores: Fernandez, Ignacio; Darias, Maria; Andree, Karl B.; Mazurais, David; Zambonino, Jose-luis; Gisbert, Enric.
Background: Vitamin A (VA) has a key role in vertebrate morphogenesis, determining body patterning and growth through the control of cell proliferation and differentiation processes. VA regulates primary molecular pathways of those processes by the binding of its active metabolite (retinoic acid) to two types of specific nuclear receptors: retinoic acid receptors (RARs) and retinoid X receptors (RXRs), which promote transcription of downstream target genes. This process is well known in most of higher vertebrates; however, scarce information is available regarding fishes. Therefore, in order to gain further knowledge of fish larval development and its disruption by nutritional VA imbalance, the relative expression of some RARs and RXRs, as well as several...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00031/14264/11546.pdf

Effect of nature of dietary lipids on European sea bass morphogenesis: implication of retinoid receptors
Provedor de dados: 5
Autores: Villeneuve, Laure; Gisbert, Enric; Zambonino, Jose-luis; Quazuguel, Patrick; Cahu, Chantal.
The effect of the nature and form of supply of dietary lipids on larval development was investigated in European sea bass larvae, by considering the expression of several genes involved in morphogenesis. Fish were fed from 7 to 37 d post-hatch with five isoproteic and isolipidic compound diets incorporating different levels of EPA and DHA provided by phospholipid or neutral lipid. Phospholipid fraction containing 1 center dot 1 % (PL1 diet) to 2 center dot 3 % (PL3 diet) of EPA and DHA sustained good larval growth and survival, with low vertebral and cephalic deformities. Similar levels of EPA and DHA provided by the neutral lipid fraction were teratogenic and lethal. Nevertheless, dietary phospholipids containing high levels of DHA and EPA (PL5 diet)...
Tipo: Text
Palavras-chave: Retinoic acid receptors; Skeletal malformations; Dicentrarchus labrax larvae; Neutral lipids; Phospholipids.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-880.pdf

Vitamin A supplementation enhances Senegalese sole (Solea senegalensis) early juvenile’s immunocompetence: new insights on potential underlying pathways
Provedor de dados: 5
Autores: Fernandez, Ignacio; Lopez-joven, Maria-carmen; Andree, Karl B.; Roque, Ana; Gisbert, Enric.
Senegalese sole (Solea senegalensis) has been considered since the 1990´s to be a promising flatfish species for diversifying European marine aquaculture. However, pathogen outbreaks leading to high mortality rates can impair Senegalese sole commercial production at the weaning phase. Different approaches have been shown to improve fish immunocompetence; with this in mind the objective of the work described herein was to determine whether increased levels of dietary vitamin A (VA) improve the immune response in early juveniles of Senegalese sole. For this purpose, Senegalese sole were reared and fed with Artemia metanauplii containing increased levels of VA (37,000; 44,666; 82,666 and 203,000 total VA IU Kg-1) from 6 to 60 days post-hatch (early juvenile...
Tipo: Text
Palavras-chave: Vitamin; Retinoic acid; Immune system; Gene expression; Senegalese sole Solea senegalensis; Photobacterium damselae subp. damselae.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00275/38617/37147.pdf