Consulta: subjectFacets:"Sea bass larvae"
Registros recuperados: 3
Data/hora: 06/06/2024 12:09:14

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

Expression and activities of pancreatic enzymes in developing sea bass larvae (Dicentrarchus labrax) in relation to intact and hydrolyzed dietary protein; involvement of cholecystokinin
Provedor de dados: 5
Autores: Cahu, Chantal; Ronnestad, I; Grangier, V; Zambonino, Jose-luis.
In order to assess the influence of dietary protein on digestive enzyme expression and cholecystokinin (CCK) content in sea bass larvae, four groups of larvae were fed experimental diets from mouth opening until day 42: three isonitrogenous diets with increasing protein hydrolysate levels (0%, 14% and 46% of crude matter) and one diet incorporating starch. The groups fed high starch or high protein hydrolysate level exhibited the lowest growth. The final weight in these groups was 9.5 and 5.6 mg, respectively, whereas it reached approximately 20.0 mg in the groups fed 0% or 14% protein hydrolysate level. The highest levels of trypsin secretion were observed in larvae fed the lowest protein hydrolysate level. Paradoxically, the groups fed diet containing...
Tipo: Text
Palavras-chave: Starch; Sea bass larvae; Protein hydrolysate; Pancreatic enzyme secretion; Cholecystokinin.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-442.pdf

Optimal levels of dietary vitamin A for reduced deformity incidence during development of European sea bass larvae (Dicentrarchus labrax) depend on malformation type
Provedor de dados: 5
Autores: Mazurais, David; Glynatsi, Nomiki; Darias, Maria J.; Christodoulopoulou, Stavroula; Cahu, Chantal; Zambonino, Jose-luis; Koumoundouros, Giorgos.
The purpose of this study was to examine the impact of graded levels of dietary vitamin A on sea bass larval performances and to determine optimal retinol levels at different larval stages to avoid specific skeletal malformations. Retinol was incorporated into larval feeds at 0, 5,10,15, 25, 35 and 70 mg kg(-1) dry matter (giving rise to RET0, RET5, RET10, RET15, RET25, RET35, RET70 groups, respectively). Analysis of the several types of deformities affecting the skull, vertebral column or fins of the fish were observed depending on experimental groups. On one hand, the incidence of skull malformations affecting the maxillary and premaxillary bones. dentaries, operculum, branchiostegal rays and glossohyal was lower for the RET0 and RET5 groups. On the...
Tipo: Text
Palavras-chave: Hoxd 9; Vitamin A; Skeletal development; Sea bass larvae.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6779.pdf