
doi: 10.3382/ps.0680070
Abstract Two groups of White Leghorn pullets, reared in floor pens, were observed for changes in behavioral traits when housed in cages. Data in Experiment 1 were obtained during Days 1 to 5 posthousing from 40 pullets kept in eight 40.7-cm wide × 45.7-cm deep cages with either four or six birds/cage and in Experiment 2 during Days 1 to 5 and Day 7 posthousing from 24 pullets housed four/cage in three 30.5-cm wide × 45.7-cm deep cages (deep cages), and three 45.7-cm wide × 30.5-cm deep cages (shallow cages). In Experiment 1, pullets housed four/cage spent significantly (P
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