Observation on Application Effect of Multipolar Inactivated Vaccine(Xinjiang Strain)of Chicken Escherichia coli

The contrast test of multipolar inactivated vaccine with hydroxide adjuvant from self-made chicken Escherichia coli on 3 chicken flocks was made.There was great difference among the survival rate of 8～43 week-old chicken in immunized group and non-immunized group(P0.01).There was not significant difference in the laying rate of 28 week-old chicken,but there were great differences among the laying rate and the rate of feed and egg of 43 week-old chicken(P0.01).The result showed that applying self-made E.coli multipolar inactivated vaccine in the chicken house could obtain better control effect.