Effects of microbe-derived antioxidants on growth,digestive and aminotransferase activities,and antioxidant capacities in the hepatopancreas of Eriocheir sinensis under ammonia nitrogen stress  

作　　者：Aoya Shi Huan Ma Xingliang Shi Wenquan Zhou Wangjun Pan Yameng Song Qing Chen Xiaowen Yu Chao Niu Yingfei Yang Yongxu Cheng Xiaozhen Yang 

机构地区：[1]National Demonstration Center for Experimental Fisheries Science Education,Shanghai Ocean University,Shanghai,201306,China [2]Key Laboratory of Freshwater Aquatic Genetic Resources,Ministry of Agriculture,Shanghai Ocean University,Shanghai,201306,China [3]Engineering Research Center of Aquaculture,Shanghai Ocean University,Shanghai,201306,China [4]Changzhou Jintan District Aquatic Technology Promotion Center,213299,China [5]Shandong Jingming Marine Technology Co.,LTD,257091,China

出　　处：《Aquaculture and Fisheries》2024年第6期957-966,共10页渔业学报（英文）

基　　金：the support of the National Key R&D Program of China(2019YFD0900105);the capacity-promoting Project of Shanghai Engineering and Technology Center from Shanghai Municipal Science and Technology Commission(No.19DZ2284300);the National Natural Science Foundation of China(grant number No 41876190);the Fishery Science and Technology Projects in Jiangsu Province(grant number d2018_4);the Shandong Joint Fund(grant number U1706209);the Aquaculture Engineering Research Platform in Shanghai,established by the Shanghai Science and Technology Commission(grant number 16DZ2281200);supported by China Agriculture Research System of MOF and MARA,the program for Shanghai Collaborative Innovation Center for Cultivating Elite Breeds and Green-culture of Aquaculture animals(No.2021-KJ-02-12);industry-leading talent project of Yellow River Delta.(DYRC20190210).

摘　　要：This study evaluated the effects of feeding a microbial-derived antioxidant diet(MA)for 56 days on the growth performance of Eriocheir sinensis,as well as on digestive and metabolic enzyme activity and antioxidant capacity under ammonia stress(400 mg/L ammonia nitrogen for 48 h).The weight gain at 28d and the specific growth rate at 56ds for crabs in the MA group were significantly higher than those in the control diet(C)group(p<0.05).Compared with the C group,the color of the hepatopancreas in the MA group was significantly improved(p<0.05).A significant decrease in the level of Hemolymph ammonia was found in the microbial antioxidant ammonia-N(MA_A)group(p<0.05),which may be related to the decrease of transaminase(AST,ALT,GDH)activities caused by MA diet(p<0.05).There is a significant increase in the digestive enzyme activities(Trypsin and Lipase),which reduced the accumulation of triglycerides in the hepatopancreas in the(MA_A)group(p<0.05).In addition,the antioxidant damage of crabs in hepatopancreas caused by ammonia nitrogen toxicity could also significantly be improved by MA fed in the(MA_A)group(p<0.05).microbe-derived antioxidants(supplemented with 0.2% in feeds)can protect the health of hepatopancreas,promote growth,and improve the ability to resist ammonia nitrogen stress for E.sinensis.

关 键 词：Eriocheir sinensis Microbial-derived antioxidant GROWTH Ammonia nitrogen 

分 类 号：S917.4[农业科学—水产科学]