Stracke, J., Otten, W., Tuchscherer, A. et al. 2017. Dietary tryptophan supplementation and affective state in pigs. Journal of Veterinary Behavior 20, 82-90.
The assessment and provision of welfare in farm animals has become a major issue in animal science. A key element for providing good welfare is the enabling of positive affective states in the animals. As...