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Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (8): 45-49.doi: 10.11924/j.issn.1000-6850.casb14100054

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Effects of Compound Chinese Herbal Medicine on Non-specific Immunity of Amur Sturgeon

Sun Yilei1,2, Wang Di1, Liu Hongbai1   

  1. (1Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070;2Wuxi Fisheries College, Nanjing Agricultural University, Wuxi Jiangsu 214182)
  • Received:2014-10-18 Revised:2015-01-05 Accepted:2015-01-13 Online:2015-04-07 Published:2015-04-07

Abstract: To screen appropriate immune enhancer of Chinese herbal medicine for Acipenser schrenckii, the effects of three kinds of compound Chinese herbal medicine on non-specific immune Amur sturgeon were studied. There were three test groups and one control group. Each group was subdivided into 2 replicates with 200 fish per replicate. Three kinds of compound Chinese herbal medicine were added with the amount of 2.5% of the body weight respectively in the basal diet to feed healthy, non-immune 1 age Amur sturgeon for 35 days. The control group was fed by diet without compound additives. When the feeding experiment finished, serum, liver, spleen and kidney tissues were collected for investigating the immunity indices of Amur sturgeon. The results showed that the contents of complement 3 and complement 4 in serum in the three experimental groups were higher than that in the control group, and the contents of complement 3 and complement 4 of compound 3 were significantly higher than that in the control group(P<0.05). Content of lysozyme in serum of compound 3 also increased obviously(P<0.05), but contents of lysozyme of compound 1 and compound 2 were not significantly higher (P>0.05). Contents of lysozyme in compound 1 and compound 2 were also higher in liver and spleen but were not significant(P>0.05). Contents of NO of compound 1 and compound 3 in serum were obviously higher than that in the control group(P<0.05). The activity of NOS in spleen did not increase significantly in the three treatment groups(P>0.05). The challenge study with Aeromonas hydrophila showed that the three compounds, especially compound 3, could improve the livability of Amur sturgeon. The experiment results showed that compound 3 was a good Chinese herbal medicine immune enhancer which was efficient for Amur sturgeon to facilitate the non-specific immunity function.