Figure 25.

Histograms of the distribution of the Total Welfare Score (TWS) for flocks of the three production systems (Left), including eight animal- and resource-based welfare indicators (left) and five animal-based welfare indicators (Right; TWS—resource-based indicators). The animal-based indicators were mortality, footpad, hockburn, breast irritation and scratches; the resource-based indicators were: SD (stocking density), EF (early feeding), and EE (environmental enrichment). DRB—Dutch Retail Broiler; C—Conventional; BLS—Beter Leven System (Source: [136], Figure 1A,H).