Original data from Dawkins, M.S., Donnelly, C.A. & Jones, T.A. (2004) Chicken welfare is influenced more by housing conditions than by stocking density. Nature 427: 342-344

The data is set out with descriptions in 3 folders:
Amalgamation: Information about flocks
Environment: Information about temperature, humidity etc.
Management: Management, slaughter plant and lab results.