Table 1.
Information on in-house birds and environmental conditions in different types of poultry houses where air measurements were performed in spring season

Items	Floor-pens	Aviary	Cage
House size in meters (W x L x H)	10 x 42 x 5	15 x 39 x 3.5	8 x 106 x 8
Population (birds)	293	2,411	3,000
Age (wk)	48-54	48-54	48-54
Temperature (’C)
Max	17.3	20.0	19.3
Mm	15.4	17.7	15.7
Average	16.4	18.9	17.5
Humidity (%)
Max	50.7	53.7	25.0
Mm	42.0	39.3	25.0
Average	46.4	46.5	25.0