Play is commonly used to assess affective states in both humans and non-human animals.
Play appears to be most common when animals are well-fed and not under any direct …

Abstract This Scientific Opinion addresses a European Commission request on the welfare
of calves as part of the Farm to Fork strategy. EFSA was asked to provide a description of …

The aim of this systematic review was to summarize the literature assessing the effects of
weaning practices on performance, behavior, and health of dairy calves. Only published …

This study investigated play behavior of dairy calves kept with the cow either full time or half
time in groups of 4 dam-calf pairs in 68-m 2 straw-bedded pens. Twenty-four of 48 calves …

Engagement in play behaviour has been associated with the presence of positive affective
states and, thus, proposed to be an indicator of positive animal welfare. However, the …

The objectives of this study were to determine if weaning would induce behavioral and
physiological indicators of a negative affective state, and if supplementation of inactivated …

Play behavior is a promising welfare indicator in dairy calves because it decreases in
negative situations such as pain or hunger and increases in positive contexts such as in …

The objective of this dissertation was to investigate if dietary supplements could improve
dairy calf health and welfare. The first study was focused on investigating the effects of …