Open AccessArticle by Susana Le Brech 1,2,*, Marta Amat 1,2, Déborah Temple 2 and Xavier Manteca 1,2 1 School of Veterinary Medicine, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain 2 Animal Welfare Education Centre (AWEC), Edifici Eureka, Campus UAB, 08193 Bellaterra, Spain * Author to whom correspondence should be addressed.