Effects of different dietary selenium sources (selenium nanoparticle and selenomethionine) on growth performance, muscle composition and glutathione peroxidase enzyme activity of crucian carp (Carassius auratus gibelio)
2009; Elsevier BV; Volume: 291; Issue: 1-2 Linguagem: Inglês
10.1016/j.aquaculture.2009.03.007
ISSN1873-5622
AutoresXuxia Zhou, Yanbo Wang, Qing Gu, Weifen Li,
Tópico(s)Environmental Toxicology and Ecotoxicology
ResumoAn experiment was conducted to compare the effects of selenium nanoparticle (T-1) and selenomethionine (T-2) on crucian carp, Carassius auratus gibelio. There were significant differences (P < 0.05) in relative gain rate and final weight of T-1 and T-2 compared with the control. Survival rate and feed conversion ratio (FCR) were not affected by the dietary treatments. Fish fed the basal diet (control) showed lower (P < 0.05) selenium content in muscle (6.10 ± 0.78 μg g− 1) compared to T-1 and T-2 (16.42 ± 1.07 μg g− 1 and 13.52 ± 1.31 μg g− 1, respectively). Furthermore, the highest value (P < 0.05) of selenium content in muscle was observed in T-1. Glutathione peroxidase (GSH-Px) activities in carps plasma and liver of T-1 and T-2 were significantly different (P < 0.05) with that of the control. However, no significant differences were observed in GSH-Px activities both in plasma and liver between T-1 and T-2.
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