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.

• 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。