Consulta: creatorFacets:"Shiranghi, Ainaz"
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Data/hora: 02/06/2024 08:29:10

Effects of fasting and re-alimentation on gill and intestinal morphology and indicators of osmoregulatory capacity in genetically selected sea bass (Dicentrarchus labrax) populations with contrasting tolerance to fasting
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Alix, Maud; Blondeau-bidet, Eva; Grousset, Evelyse; Shiranghi, Ainaz; Vergnet, Alain; Guinand, Bruno; Chatain, Beatrice; Boulo, Viviane; Lignot, Jehan-herve.
Fasting and refeeding occur naturally in predators but this is largely ignored when dealing with farmed fish. Therefore, the effects of 3-week fasting and re-alimentation (2.5% of the individual body mass) were investigated using two genetically selected populations (F2 generation) of 250 g juvenile sea bass (Dicentrarchus labrax L.). Blood osmolarity, gill and intestinal morphology and expression of the sodium pump (Na+, K+-ATPase, NKA) were studied on two phenotypes showing different degrees of body mass loss during food deprivation: one group losing body mass rapidly during fasting (F +) and the other one limiting body mass loss during the same period (F-).  Blood osmotic pressure significantly decreases due to re-alimentation in both groups, but this...
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00354/46521/46285.pdf