Table 1.

Distribution of broilers per treatment in the 12 pens of the 6 rooms.

Density	41 kg/m2						31 kg/m2
Room	Room 1		Room 2		Room 3		Room 4		Room 5		Room 6
Enrichment	Yes		No		Yes	No	Yes	No	No		Yes
Pen	1	2	3	4	5	6	7	8	9	10	11	12
Number of broilers	1385	1385	1471	1471	1385	1471	1040	1103	1103	1103	1040	1040