Influence of two different dietary zinc sources in freshwater prawn Macrobrachium rosenbergii post larvae  

作　　者：THIRUNAVUKKARASU Muralisankar PERIYAKALI Saravana Bhavan SUBRAMANIAN Radhakrishnan PERUMAL Santhanam 

机构地区：[1]Aquatic Ecology Laboratory, Department of Zoology, Bharathiar University [2]Marine Planktonology and Aquaculture Laboratory, Department of Marine Science, Bharathidasan University [3]Crustacean Biology Laboratory, Department of Zoology, Bharathiar University [4]Department of Arid Land Agriculture, College of Food & Agriculture, United Arab Emirates University

出　　处：《Journal of Oceanology and Limnology》2019年第1期290-299,共10页海洋湖沼学报（英文）

基　　金：Supported by the National Postdoctroal Fellowship of Science and Engineering Research Board,Department of Science and Technology,New Delhi,India(No.PDF/2015/000231)to the first author(TM)

摘　　要：A feeding experiment was conducted to evaluate the ef fects of bulk zinc(B-Zn) and zinc nanoparticles(Zn-NPs) on survival, growth, compositions of amino acid and fatty acid, and nonspeci?c immune responses of the freshwater prawn, Macrobrachium rosenbergii post larvae. The B-Zn(size 10 μm)and Zn-NPs(size 50 nm) were supplemented separately with the basal feeds of M. rosenbergii at 60 mg/kg and feed without supplementation of any Zn source was served as a control. M. rosenbergii were fed these feeds for 90 days and the results showed that signi?cant( P <0.05) improvements in survival, growth, feed intake,speci?c growth rate, essential amino acids, unsaturated fatty acids, nonspeci?c immune responses(total haemocytes and dif ferential haemocytes count) of M. rosenbergii fed with B-Zn and Zn-NPs supplemented feeds when compared to control. Among these Zn sources, Zn-NPs supplemented feeds fed prawns showed signi?cantly( P <0.05) better performance than that of B-Zn and control. Hence, present study suggests that the 60 mg/kg Zn-NPs can be supplemented with basal feeds of M. rosenbergii for regulating better survival and growth.A feeding experiment was conducted to evaluate the ef fects of bulk zinc(B-Zn) and zinc nanoparticles(Zn-NPs) on survival, growth, compositions of amino acid and fatty acid, and nonspeci?c immune responses of the freshwater prawn, Macrobrachium rosenbergii post larvae. The B-Zn(size 10 μm)and Zn-NPs(size 50 nm) were supplemented separately with the basal feeds of M. rosenbergii at 60 mg/kg and feed without supplementation of any Zn source was served as a control. M. rosenbergii were fed these feeds for 90 days and the results showed that signi?cant( P <0.05) improvements in survival, growth, feed intake,speci?c growth rate, essential amino acids, unsaturated fatty acids, nonspeci?c immune responses(total haemocytes and dif ferential haemocytes count) of M. rosenbergii fed with B-Zn and Zn-NPs supplemented feeds when compared to control. Among these Zn sources, Zn-NPs supplemented feeds fed prawns showed signi?cantly( P <0.05) better performance than that of B-Zn and control. Hence, present study suggests that the 60 mg/kg Zn-NPs can be supplemented with basal feeds of M. rosenbergii for regulating better survival and growth.

关 键 词：survival feed AMINO ACID FATTY ACID HAEMOCYTES zinc nanoparticles 

分 类 号：P[天文地球]