复方中草药对禽白血病鸡成活率及免疫性能的影响.

In order to study the effective means of preventing and controlling Wuding chicken leukemia, in this study, five compound Chinese herbs were added into the feed to feed the infected chickens at the age of 90 days and the herbs were dose 1 (0.2% of immunity enhancement+0.2% of antiviral),dose 2(0.4% of immunity enhancement+0.4% of antiviral),dose 3(0.6% of immunity enhancement+0.6% of antiviral), dose 4(0.8% of immunity enhancement+0.8% of antiviral), and dose 5(1% of immunity enhancement+1% of antiviral). Survival rate was investigated and blood immunity indexes of C3, C4, IgA, and IgG were determined at the age of 120, 150, 180, and 210 days, respectively. The results showed that feeding diseased chickens with 5 doses of compound Chinese herbs had no significant effect on the growth of the test chickens. the content of C3, C4, and IgA in the serum in the different dose groups was lower than that of the control group(no addition of Chinese herbs) at 120, 150, 180, and 210 days of age, and the content of C3 and IgA in the dose 1 group was significantly lower than that of the control group at 120 days of age, and the content of C4 in the dose 2 group was significantly lower than that of the control group at 120 days of age. The content of C3 and IgA in the dose 2 group was significantly lower than that of the control group at 210 days,the content of immunoglobulin IgG in each dose group was lower than that of the control group at 120, 150, and 210 days except for 180 days of age, and the content of immunoglobulin IgG in the dose 2 group was significantly lower than that of the control group at 120 days of age. After feeding diseased chickens with addtion of the compound Chinese herbs for 120 days, the survival rate of dose 1, 2, and 3 groups were higher than that of the control group to different degrees, and the survival rate of dose 2 group reached 93.33%, which was significantly higher than that of dose 4 and 5 groups, and the dose 2 and 3 groups also showed the phenomenon of turning negative. It indicated that this compound herbal formula could improve the survival rate and immunity performance of chickens infected by Wuding chicken leukemia, and had the effect of inhibiting(or treating) Wuding chicken leukemia, with the best effect in the dose 2 group(0.4% of antiviral + 0.4% of immunity enhencing additive). [ABSTRACT FROM AUTHOR]