The effects of environmental enrichment objects on behaviors of Japanese quails at different cage stocking densities

Abstract

The aim of this study is to investigate the behaviors of and monitor the changes on behaviors of Japanese quails reared in different stocking density, through using different objects, (small red balls, bunch of rope, mirrors and beads) providing environmental enrichment (EE) in the cages of quails. Six hundred of 1 day old Japanese quail chicks (mixed sex) were used in this study. Birds were reared in battery cages with four floors, each of which has two separations. The quails were placed in cage dimension in the quantities of 10 quails (lower density: LD) and of 20 quails (higher density: HD) per separation. Our hypothesis was that EE would improve the welfare of quails. The birds were observed in their cages naturally in accordance with one-zero sampling, and home cage avoidance test was performed for these birds. While the applications have significant effect on feeding and relaxation behaviors (P<0.05 levels) in LD environment, the effect of comfort, social and other behaviors was realized at P<0.01 levels in the same environment. However in HD environment, only rest behavior was affected significantly in P<0.05 level, the other properties were affected in P<0.01 levels. The live weights weren't affected from EE (for LD, P=0.134 and for HD P=0.216). It was determined in the result of this study that the objects hung in the quail cages had potential effect to improve the welfare of quails.

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