Open AccessEffect of oxidized fish oil on growth performance and oxidative stress of L itopenaeus vannamei
Author(s) -
Yang S.P.,
Liu H.L.,
Wang C.G.,
Yang P.,
Sun C.B.,
Chan S.M.
Publication year - 2015
Publication title -
aquaculture nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.941
H-Index - 79
eISSN - 1365-2095
pISSN - 1353-5773
DOI - 10.1111/anu.12143
Subject(s) - litopenaeus , shrimp , biology , malondialdehyde , zoology , oxidative stress , fish oil , food science , feed conversion ratio , antioxidant , fishery , body weight , fish <actinopterygii> , biochemistry , endocrinology
A 4‐week feeding trial was conducted to determine the effects of oxidized fish oil ( OFO , POV : 234.84 meq kg −1 ) on growth performance and oxidative stress of L itopenaeus vannamei . Five diets containing various OFO levels (0, 25, 50, 75 and 100 g kg −1 ) with the same dietary lipid level were fed to L . vannamei . The results showed that the body weight gain and the specific growth rate of the shrimp fed with 50, 75 and 100 g kg −1 of OFO diets decreased significantly ( P < 0.05), whereas the hepatosomatic index increased significantly ( P < 0.05). The malondialdehyde concentrations in the serum and muscle of the shrimp fed with 50, 75 and 100 g kg −1 of OFO diets were significantly higher than that of the shrimp fed with fresh fish oil ( P < 0.05). The total antioxidant competence decreased significantly compared with the control group. Therefore, dietary OFO affects the growth performance and increases the oxidative stress of shrimp.