The Israeli Journal of Aquaculture – Bamidgeh 61(4), 2009, 322-329.
The IJA appears now exclusively as a peerreviewed on-line Open Access journal at
http://www.siamb.org.il
Effects of Selenium on the Activity of Antioxidant
Enzymes in the Shrimp, Neocaridina heteropoda
(Received
2.3.09,
21.4.09)
Hong-Wei Wang1*,
Duan-Bo
Cai2,Accepted
Guo-Hua
Xiao3, Chun-Long Zhao3, ZiHui Wang4, Hai-Ming Xu1, Yue-Qiang Guan1
1 College of Life Science, Hebei University, Baoding 071002, P.R. China
2 College of Quality and Technical Supervision, Hebei University, Baoding
071002, P.R. China
3 Fisheries Research Institute of Hebei Province, Marine Culture Laboratory,
Qinhuangdao 066200, P.R. China
4 Mancheng County Hospital, Hebei Province, Baoding 071000, P.R. China
(Received 10.4.09, Accepted 23.5.09)
Key words: Neocaridina heteropoda, selenium, antioxidant enzymes
Abstract
The effects of a selenium-supplemented diet on the antioxidant enzyme
activity of superoxide dismutase (SOD), catalase (CAT), and glutathione
peroxidase (GPX) in muscles of the shrimp, Neocaridina heteropoda, were
investigated. Purified diets with six levels (0, 0.15, 0.30, 0.45, 0.60, and
0.75 μg/g) of supplemental Se were fed to N. heteropoda for three months.
CAT and GPX activity was determined after one month and SOD activity
was determined every month. The activity of the enzymes was dose
dependant; activity of all three enzymes was significantly higher in shrimp
fed Se-supplemented diets than in those fed the unsupplemented control
diet. SOD activity significantly rose and fell during the three months and
was higher in the second month than in the first or third. For all three
enzymes, antioxidant activity reached a maximum when the Se
concentration was 0.45 μg/g.
Corresponding author. E-mail address: [email protected]