Consulta: subjectFacets:"Gilthead sea bream"
Registros recuperados: 5
Data/hora: 14/06/2024 03:27:07

Feeding responses of hatchery-reared gilthead sea bream (Sparus aurata L.) to a commercial diet and natural prey items
Provedor de dados: 5
Autores: Andrew, J; Begout, Marie-laure; Kadri, S; Holm, J; Huntingford, F.
Many fish species have evolved feeding mechanisms and behaviours enabling them to feed on specific prey. However, such mechanisms may not be optimal for feeding on commercial-pelleted diets in aquaculture. Gilthead sea bream chew and occasionally eject pellets or parts of pellets from the mouth when feeding on commercial diets. This may result in an increase in nutritional waste from the intensive culture of this species. In this study we examined the prevalence of this food processing behaviour in two sizes of sea bream, feeding on three types of natural prey items in comparison to a commercial pellet, to give an insight into the circumstances in which excess chewing and ejection of food items from the mouth occurred. These included two hard-textured food...
Tipo: Text
Palavras-chave: Gilthead sea bream; Food handling; Food choice; Chewing; Aquaculture.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/publication-720.pdf

Larval performance and skeletal deformities in farmed gilthead sea bream (Sparus aurata) fed with graded levels of Vitamin A enriched rotifers (Brachionus plicatilis)
Provedor de dados: 5
Autores: Fernandez, I; Hontoria, F; Ortiz Delgado, J; Kotzamanis, Y; Estevez, A; Zambonino, Jose-luis; Gisbert, E.
Several nutritional studies have found a direct effect of several vitamins in chondrogenic and osteogenic development during early life stages of marine fish species. In the present study, the effect of vitamin A (VA) in gilthead sea bream skeletogenesis was evaluated by means of four different dietary regimes (enriched rotifers) containing increasing levels of total VA (75,109, 188 and 723 ng total VA mg(-1) DW). Dietary treatments were offered to larvae during the rotifer-feeding phase (4-20 days after hatching), while later all groups were fed with Artemia nauplii and weaned onto the same inert diet. Different dietary doses of VA affected gilthead sea bream larval growth, survival, performance (maturation of the digestive system) and quality (incidence...
Tipo: Text
Palavras-chave: Deformities; Skeleton; Vitamin A; Larval quality; Sparus aurata; Gilthead sea bream.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4937.pdf

Effect of fish meal replacement by plant protein sources on non-specific defence mechanisms and oxidative stress in gilthead sea bream (Sparus aurata)
Provedor de dados: 5
Autores: Sitja Bobadilla, A; Pena Llopis, S; Gomez Requeni, P; Medale, Francoise; Kaushik, Sadasivam; Perez Sanchez, J.
Partial or total replacement of fish meal by a mixture of plant protein (PP) sources (corn gluten, wheat gluten, extruded peas, rapeseed meal and sweet white lupin) balanced with indispensable amino acids was examined in juvenile gilthead sea bream over the course of a 6-month growth trial. A diet with fish meal (FM) as the sole protein source was compared to diets with 50%, 75% and 100% of replacement (PP50, PP75, and PP100). The possible influence of diets on growth performance, plasma metabolites, gut integrity, liver structure, anti-oxidant and immune status was evaluated. Final body weight was progressively decreased with PP inclusion, but in PP50 and PP75-fed fish, feed efficiency (FE) was significantly improved and specific growth rates remained...
Tipo: Text
Palavras-chave: Gilthead sea bream; Cholesterol; Glutathione; Histopathology; Myeloperoxidase; Complement; Lysozyme; Respiratory burst; Immune response; Growth; Plant proteins; Fish meal.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-3595.pdf

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

Effect of high-level fish meal replacement by plant proteins in gilthead sea bream (Sparus aurata) on growth and body/fillet quality traits
Provedor de dados: 5
Autores: De Francesco, M; Parisi, G; Perez Sanchez, J; Gomez Requeni, P; Medale, Francoise; Kaushik, Sadasivam; Mecatti, M; Poli, B.
Juvenile gilthead sea bream (initial body weight ca. 100 g) were reared in an indoor flow through marine water system for 1 year. Fish were fed two isoenergetic [19.2 kJ g&amp;#8722;1 dry matter (DM)] and isoproteic (426 g kg&amp;#8722;1 DM) diets either based on fish meal (diet FM) or on a mixture of plant protein sources (diet PP), replacing 75% of fish meal protein. The growth trial was conducted in duplicate, two tanks for each dietary treatment. Growth performance and feed utilization were registered. Fillet quality parameters were evaluated and sensory analyses on cooked fillet were performed. Both groups had similar weight gain and specific growth rates. Feed intake was higher in sea bream fed diet FM (0.48 versus 0.44), while feed efficiency and...
Tipo: Text
Palavras-chave: Sparus aurata; Sensory evaluation; Quality traits; Plant protein; Gilthead sea bream; Chemical composition.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-6256.pdf