Effects of Glyphosate-Resistant Genetically Modified Soybean on Antioxidant Capacity, Biochemical and Immune Indices of Jian Carp Cyprinus carpio var. jian
1. Centre for Research on Environmental Ecology and Fish Nutrition (CREEFN), Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; 2. Shandong Vocational and Technical College of Commerce, Jinan 250103, China; 3. Shandong Provincial Key Laboratory of Storage and Transportation Technology for Agricultural Products, Jinan 250103, China; 4. Guangdong Ocean University, Zhanjiang 524000, China
Abstract:In order to evaluate the safety of glyphosate-resistant genetically modified soybeans (GMS) for Jian carp Cyprinus carpio var. jian, 480 juveniles with average body weight of (60±10) g were used as the test subjects in the experiment and randomly divided into four groups. The test diet was supplemented with 15% and 30% glyphosate-resistant GMS pretreated with high temperature, respectively, and the same proportion of non-GMS diet pretreated with high temperature was used as control. The feeding period was 180 d. Growth indicators were determined by conventional methods, and related hepatopancreas and blood indicators were determined by visible light method and dry powder method. The results showed that the addition of 15% and 30% glyphosate-resistant GMS to the diet did not led to significant effect on the growth index, organ index, and muscle routine nutritional components of carp (P>0.05). The activity of GSH-Px in hepatopancreas was significantly increased when the amount of GMS in the diet was 15% and 30% (P<0.05). The activity of CAT in hepatopancreas was significantly reduced and the level of MDA in hepatopancreatic was significantly increased by adding 30% GMS (P<0.05). The ALP activity in carp serum was significantly reduced by 30% in the fish fed the diet containing 30% of GMS (P<0.05). Therefore, adding a high amount of glyphosate-resistant GMS to the diet will significantly affect the antioxidant capacity of the hepatopancreatic of Jian carp, and have a certain degree of negative impact on the immunity of the carp. However, whether the critical cause of these effects is genetically modified or not needs to be further explored.
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