Table 1. Experiment design for the trial

Farm	Case	Strain	Flock size (birds)	Housing type	Farm size	Pest method
A	IPM O	Hyline-brown	47,400	Floor	6	Bioocyst + Amorphous synthetic silica + Blood-sucking repellent
B		Hyline-brown	92,700	H type cage	2
C		Hyline-brown	100,000	H type cage	2
D		Hyline-brown	219,000	H type cage	3
E	IPM ×	Hyline-brown	69,600	H + A type cage	2	Blowing hot and dry air + Amorphous synthetic silica
F		Hyline-brown	140,500	H type cage	2
G		Hyline-brown	152,000	H type cage	2
H		Hyline-brown	156,400	H type cage	3