In the comparision between two experimental turtle ( Trionyx sinensis) groups fed on the feed containing 1% or 2 % Chinese medicinal herb powder and the contrast group to which no Chinese herb was fed, no obvious difference of γ- globulin level in the turtles' serum was found, but the survival rate of the experimental groups was obviously higher than that of the contrast group, and cell im munity of the experimental groups was significantly higher when tested by subcutaneous injection of PHA. Meanwhile, the Chinese herb promoted the growth of the turtles.
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