【摘要】 本试验对雏鸭病毒性肝炎81代鸡胚化弱毒疫苗(简称BAU-1)的三种免疫途径进行比较,证实雏鸭皮下免疫一次,饮水或气雾免疫两次,免疫效果最好。通过对免疫雏鸭的血清抗体滴度进行测定,表明皮下和饮水这两种免疫途径所产生的抗体水平差异不显著。对近100万只雏鸭进行的野外试验表明,该BAU-1疫苗在DVH严重流行的鸭场,能有效地控制DVH的流行。更多还原

【Abstract】 A comparision of three immune methods of DVH attenuated vaccine was made,and it was demonstrated that the immune effect was good if ducklings were vaccinated by SC one time, by oral or aerosol two times. By testing the serun titers of vaccinated ducklings, there were no significant differences of the antibody titers between the SC and the oral groups.The field trial of about one million ducklings demonstrated that the BAU-1 could control the epidemics of DVH effec-tively in duck farms on which DVH caused a very serious losses.更多还原