Group 1, Feed from vegetable sources only.
Item 1, STA nonusers, with
HACCP plan 59.
Item 2, STA users 6.
Group 2, Birds placed and removed all
together (all-in, all-out).
Item 1, STA nonusers, with HACCP plan 95.
Item
2, STA users 86.
Group 3, Clean houses after each flock.
Item 1, STA
nonusers, with HACCP plan 51.
Item 2, STA users 16.
Group 4, Use tunnel
ventilation.
Item 1, STA nonusers, with HACCP plan 79.
Item 2, STA users
65.
Group 5, Test feed for salmonella.
Item 1, STA nonusers, with HACCP
plan 79.
Item 2, STA users 34.
Group 6, Test flocks for
salmonella.
Item 1, STA nonusers, with HACCP plan 84.
Item 2, STA users
40.
Group 7, Test flocks for avian influenza.
Item 1, STA nonusers, with
HACCP plan 92.
Item 2, STA users 52.
Group 8, Test flocks for other
pathogens.
Item 1, STA nonusers, with HACCP plan 84.
Item 2, STA users
38.