Diet selenium improves the antioxidant defense system of juveniles Nile tilapia (Oreochromis niloticus L.)

被引:19
作者
Durigon, E. G. [1 ]
Kunz, D., I [1 ]
Peixoto, N. C. [2 ]
Uczay, J. [1 ]
Lazzari, R. [3 ]
机构
[1] Univ Fed Santa Maria, Av Romima 1000,Cidade Univ, BR-97105900 Santa Maria, RS, Brazil
[2] Univ Fed Santa Maria, Dept Ciencias Saude, Av Roraima 1000,Cidade Univ, BR-97105900 Santa Maria, RS, Brazil
[3] UFSM, Dept Zootecnia & Ciencias Biol, Av Independencia 3751, BR-98300000 Palmeira Das Missoes, RS, Brazil
关键词
health; Oreochromis niloticus; oxidative stress; performance; sodium selenite; BIOCHEMICAL PARAMETERS; COMMON CARP; VITAMIN-E; TOXICITY; FISH; BIOACCUMULATION; PERFORMANCE; BASS; FOOD;
D O I
10.1590/1519-6984.187760
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
From the advancement of tilapia production in recent years, diets are sought that allow the maximum growth, improving health and fish quality. In this study growth, biochemical, hematological and oxidative parameters were evaluated of tilapia fed with increasing selenium levels: 0.53, 0.86, 1.04 and 1.22 mg kg(-1). It was used 400 juveniles (initial weight = 36.51 +/- 10.88 g), fed for six weeks. There was no effect of selenium on fish growth, biochemical and hematological parameters. In the oxidative parameters, there was an increase in non-protein thiols and a decrease in malondialdehyde levels, evidencing antioxidant effects of selenium. The diet selenium levels above 0.86 mg kg(-1)improved the antioxidant system and does not affect to biochemical, hematological and growth parameters of tilapia juveniles.
引用
收藏
页码:527 / 532
页数:6
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