作者: Avelyne S Villain , Mathilde Lanthony , Carole Guérin , Céline Tallet , None
DOI: 10.3389/FVETS.2020.577433
关键词: Lying 、 Stimulus (physiology) 、 Psychology 、 Choice test 、 European union 、 Social isolation 、 Developmental psychology
摘要: Enriching the life of farm animals is a legal obligation in intensive farming conditions in the European Union, though not worldwide. In pigs, manipulable materials are mandatory when …