Aflatoxicosis Dysregulates the Physiological Responses to Crowding Densities in the Marine Teleost Gilthead Seabream (Sparus aurata).

摘要: Several studies in fish have shown that aflatoxin B1 (AFB1) causes a disparity of species-dependent physiological disorders without compromising survival. We studied the effect dietary administration AFB1 (2 mg kg−1 diet) gilthead seabream (Sparus aurata) juveniles combination with challenge by stocking density (4 vs. 40 g L−1). The experimental period duration was ten days, and diet administered to for 85 days prior challenge. Our results indicated an alteration carbohydrate lipid metabolites mobilization fed group, which intensified at high (HSD). CT group HSD increased plasma cortisol levels, as expected, whereas AFB1-HSD did not. star mRNA expression, enzyme involved synthesis head kidney, presented ninefold increase low (LSD) compared CT-LSD group. Adenohypophyseal gh expression but not CT-HSD Overall, these confirmed chronic exposure alters adequate endocrinological cascade response S. aurata, expected stress additional stressor, such overcrowding.