“…In recent decades, developments in broiler production have been concentrated in the following areas: type of breed used in a production system, enrichment, stocking density, provision of outdoor access, lighting regime, flock size, and barn size (Gocsik et al, 2013). The standards for the conventional broiler production system are based on EU guidelines (EC, 2007a(EC, , 2007b(EC, , 2008a and resemble the industrial type of production in many European countries (Roex and Miele, 2005).…”