95 percent (19/20) goslings can against 100LD50/0.3ml (10-days goslings) virulence strain( GPV-SCv )3 days post inoculated (PI) and 100 percent (20/20)goslings can against lOOLD50/0.3ml (10-days goslings) GPV-SCv strain 5 days PI.

• 雏鹅接种后第3天即有95%25(19/20)能够抵抗100个LD_(50)/0.；3ml(10日龄雏鹅)强毒攻击，第5天后即能100%25获得保护；