Effect of the Compound Chinese Herbal Medicine on the Antioxidant Capacity and Immune Function of Perch
LIANG Yong-jun et al(Aquatic Research Institute of Beijing,Beijing 100068)
[Objective] The theoretical basis of the application of the Chinese herbal medicine as feed additive in perch-raising was provided. [Method] The design of single-factor gradient experiment,which was 4 treatments including the basic feed(Ⅰ),the doses of the basic feed added with 0.5%(Ⅱ),1.0%(Ⅲ) and 2.0%(Ⅳ) of compound Chinese herbal medicine for perch with the initial body-weight of(175.6±6.6)g for 25 days' raising,was adopted to determine its growth rate and analyze the activity of superoxide dismutase(SOD),catalase(CAT),malondialdehyde(MDA) and lysozyme in its growth(LSZ),and to test the effect of compound Chinese herbal medicine on perch growth and non-specific immunization of serum.[Results] The rate of weight-increasing of perch fed with the feed added with 1.0% of compound Chinese herbal medicine was highest among all of treatments,but there was not significant difference in rate of weight-increasing of perch among the treatments.The activity of SOD,lysozyme and catalase in the serum,spleen,liver and kidney of perch fed with the feed added with compound Chinese herbal medicine can be significantly improved and the biggest activity of those was produced by the treatment Ⅲ.It was indicated that the addition of compound Chinese herbal medicine in the feed could improve antioxidant capacity and non-specific immunity of perch,and may strengthen adaptability and the ability in the reaction to environmental stress of the fish.[Conclusion] The application of compound Chinese herbal medicine in the feed was able to strengthen the perch's immune function,so as to enhance the body's defenses to pathogens.