Data/hora: 06/06/2024 09:16:30

Provedor de dados: 	5	
País: 	France	
Título: 	Influence nutritionnelle de la vitamine A et de la nature des lipides sur la morphogenèse de la larve de bar (Dicentrarchus labrax): implicaton de la voie des rétinoïdes	
Autores: 	Villeneuve, Laure.	
Data: 	2005-02-09	
Ano: 	2005	
Palavras-chave: 	Malformations; Genes of development; PUFA; Vitamin A; Sea bass Dicentrarchus labrax; Larvae; Malformations; Gènes du développement; AGPI; Vitamine A; Bar Dicentrarchus labrax; Larves.	
Resumo: 	The aim of this study was to determine the nutritional effects of vitamin A and PUFA (including EPA and DHA) on sea bass larvae development. An excess of vitamin A in the diet led to malformations affecting the cephalic region linked to an increase of RARgama transcription and the loss of a vertebra when larvae were fed this diet from 8 days post hatch (dph) to 13 dph. A diet containing an excess of PUFA disrupted the development of larvae vertebral column, deformities were correlated to a decrease of RARalpha, RARgama, RXRalpha and BMP4 transcription and an additional vertebra appeared when larvae were fed this diet from 8 dph to 13 dph. A diet containing 31 mg/kg of dry matter of vitamin A and between 1.1 and 2.3% of EPA + DHA allows larvae to develop harmoniously. The period 8-13 dph is crucial for the development as sea bass larvae are very sensible to the level and the nature of nutrients during this interval of time.	
Tipo: 	Text	
Idioma: 	Francês	
Identificador: 	http://archimer.ifremer.fr/doc/2005/these-324.pdf	
Editor: 	Université de Rennes 1	
Relação: 	http://archimer.ifremer.fr/doc/00000/324/	
Formato: 	application/pdf