Daytime occupancy of resources and flooring types by 4 laying hen strains in a commercial-style aviary

In response to consumer demands and legislative measures for improving hens' welfare, many laying hen producers are replacing conventional cages with aviaries. Aviary resources, such as nest boxes, litter areas, ledges, and perches, are intended to increase the display of natural behaviors. However, commercial laying hen strains have been differentially selected for varying traits including egg quality, feed efficiency, and behavior. Therefore,...