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Husbandry stress during early life stages affects the stress response and health status of juvenile sea bass, Dicentrarchus labrax ArchiMer
Varsamos, S; Flik, G; Pepin, Jean-francois; Bonga, S; Breuil, Gilles.
In aquaculture management it is important to establish objective criteria to assess health and welfare of the fish. Here we show that European sea bass (Dicentrarchus labrax) confronted with husbandry-associated stress (tank cleaning, i.e. scrubbing, and water temperature variation) during early life stages show poorer survival and disease resistance as juveniles. We evaluated several parameters for stress (plasma cortisol, glucose and lactate, hydromineral status), growth performance, the immune response (plasma IgM levels) and the effects of a nodavirus challenge. Principal component analysis allowed the establishment of a stress panel including plasma cortisol, osmolality, IgM levels and weight. Sea bass juveniles reared during early life in high and...
Tipo: Text Palavras-chave: Dicentrarchus labrax; Nodavirus challenge; Scrubbing; Temperature; Welfare; Health; Allostasis; Stress.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-2395.pdf
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