Development of the ‘animal welfare’ dimension within the Greenwell sustainability assessment model: 2. Data for all production stages andcalculation of scores for the broiler on-farm stage

Summary

Within the Greenwell project, a model will be developed to assess the sustainability (environmental impact, economic impact, animal welfare and health impact) of broiler production systems. The present report provides values and variation for the welfare indicators in the different stages of the broiler production chain (broiler breeders, hatchery, broiler farm and end-of-life stage) based on the Greenwell welfare model for four selected production systems (conventional, DutchRetail Broiler, Better Life one star, organic), if known. These data have been collected by the Greenwell consortium partners or other chain partners in the Netherlands over the year 2017; where no data were available estimations based on 2018 or 2019 were used. In addition to that, a scoring system has been developed to assign a welfare score on a scale between 0 (worst)-100 (perfect) for the welfare indicators of broiler production on-farm. To this end, a database containing processing plant and hatchery data over 2017 and 2018 has been used. The sum of the scores for the individual indicators presents the total welfare score for a particular broiler flock. Results show the average welfare scores for broilers on-farm and the variation within production systems, for conventional,Dutch Retail Broiler and Better Life one star. No data were available to assign scores to organic flocks.