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《Journal of Anhui Agricultural Sciences》 2007-26
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ffect of Five Species of Herbs on Nonspecific Immune Activity of Litopenaeus vannamei

WANG Yun et al (College of Life Sciences and Technology, Shanghai Fisheries University, Shanghai 200090)  
Litopenaus vannamei were fed for 28 d with water extracts from 2 % weight ratio of Houttuynia cordata,Radix astragalus,Rheum officinale,Glycyrrhiza uralensis and Radix scutellaria. Serums were collected in different times and the activities of phenoloxidase (PO), lysozyme(LSZ), superoxide dismutase(SOD)and protein level in the serum of L. vannamei were measured. The body length growth rate and relative weight gain of R. astragalus group,R .officinale group and G. uralensis group were significantly higher than those of control(P0.05). With few exceptions, the PO activity, LSZ activity, SOD activity and serum protein content of Radix astragalus,Rheum officinale,Glycyrrhiza uralensis and Radix scutellaria were significant higher than those of control group (P0.01). Result showed that R. astragalus group,R .officinale group and G. uralensis could promote the growth and nonspecific immune activity of Litopenaus vannamei, but H .cordata was on the contrary. Vibrio anguillarum was injected into Litopenaus vannamei the 7th d after the feed experiment. The cumulative mortality of Houttuynia cordata group was higher than that of control group in 7 d and that of Radix scutellaria group was the same with control group. The cumulative mortality of Radix astragalus,Rheum officinale and Glycyrrhiza uralensis were lower with immune protective rate of 37 % ~ 46 %. Therefore, Radix astragalus,Rheum officinale and Glycyrrhiza uralensis were herb immune regulators suited for Litopenaeus vannamei considering from the aspects of promoting growth and immune activity.
【Fund】: 科技部社会公益研究专项(2004DIB4J1659)。
【CateGory Index】: S968.22
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