An 8-week feeding trial wa sundertakenwith Cyprinus carpio to determine the effect o ftwo commercial Se diets(HSe1.0mgkg1 and LSe0.25mgkg1) ongrowth,accumulationandantioxidant response in juveniles at time 0, 30 and 60days. HSe carp had higher mean weight (W) values than LSe group at 60 days and the Fulton condition factor (K) indicated good fish health for both diet groups. Among the investigated HSe tissues, kidney and liver were mainly involved in Se accumulation, where as the Se level in muscle indicated a very low Se contamination risk for human health. Selenium accumulation levels in HSe tissues followed this order:kidney-liver-muscle. Although growth was not impaired, biochemical antioxidant indicators in liver and kidney evidenced an oxidative stress condition in HSe juveniles. Furthermore, selenium supplementation levels, higher than the one employed in this study, might worsen the antioxidant status of carp.
Effects of selenium diets on growth, accumulation and antioxidant response in juvenile carp
ELIA, Antonia Concetta;PACINI, NICOLE;DOERR, Ambrosius J. Martin;
2011
Abstract
An 8-week feeding trial wa sundertakenwith Cyprinus carpio to determine the effect o ftwo commercial Se diets(HSe1.0mgkg1 and LSe0.25mgkg1) ongrowth,accumulationandantioxidant response in juveniles at time 0, 30 and 60days. HSe carp had higher mean weight (W) values than LSe group at 60 days and the Fulton condition factor (K) indicated good fish health for both diet groups. Among the investigated HSe tissues, kidney and liver were mainly involved in Se accumulation, where as the Se level in muscle indicated a very low Se contamination risk for human health. Selenium accumulation levels in HSe tissues followed this order:kidney-liver-muscle. Although growth was not impaired, biochemical antioxidant indicators in liver and kidney evidenced an oxidative stress condition in HSe juveniles. Furthermore, selenium supplementation levels, higher than the one employed in this study, might worsen the antioxidant status of carp.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
