Data/hora: 08/06/2024 13:47:49

Provedor de dados: 	Institutional Archive of Ifreme (ArchiMer)	
País: 	France	
Título: 	Effect of diets containing different levels of highly unsaturated fatty acids on physiological and immune responses in Pacific whiteleg shrimp Litopenaeus vannamei (Boone) exposed to handling stress	
Autores: 	Mercier, Laurence; Racotta, Ilie; Yepiz-plascencia, Gloria; Muhlia-almazan, Adriana; Civera, Roberto; Quinones-arreola, Marcos F.; Wille, Mathieu; Sorgeloos, Patrick; Palacios, Elena.	
Data: 	2009-11	
Ano: 	2009	
Palavras-chave: 	Anion superoxide; Clotting time; Glucose; Haemocyte; HDL-BGBP; HUFA.	
Resumo: 	Juveniles fed a diet containing a low or a high level of highly unsaturated fatty acids (HUFA) for 38 days were exposed to handling stress. In a first experiment, stress was applied daily for 30 days, after which the physiological and immunological variables were measured, whereas in a second experiment, stress was applied once and samples were obtained 1 and 24 h after the stressor event. Shrimp that were stressed for 30 days showed significantly lower survival, final weight and feed consumption compared with unstressed shrimp. The concentration of the high-density lipoprotein beta-glucan-binding protein was significantly higher in shrimp fed the high-HUFA diet. The glucose concentration in the haemolymph was significantly higher in long-term stressed shrimp compared to controls. The lactate level in the haemolymph was significantly lower in shrimp fed the high-HUFA diet. Lactate and glucose in the haemolymph increased in the 1-h stressed shrimp, but returned to normal levels in 24-h stressed shrimp. A negative effect of repeated-handling stress applied for 30 days was mainly observed on biological performance, whereas the single-stressor event had a more pronounced effect on shrimp physiological and immune responses measured 1 and 24 h after the stressor. A beneficial role of enrichment with HUFA on tolerance to handling stress was observed on immune response capacity.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/00020/13136/11554.pdf

DOI:10.1111/j.1365-2109.2009.02291.x	
Editor: 	Wiley-blackwell Publishing, Inc	
Relação: 	http://archimer.ifremer.fr/doc/00020/13136/	
Formato: 	application/pdf	
Fonte: 	Aquaculture Research (1355-557X) (Wiley-blackwell Publishing, Inc), 2009-11 , Vol. 40 , N. 16 , P. 1849-1863	
Fonte: 	2009 Wiley-blackwell Publishing, Inc