Responses to novel situations of female and castrated male pigs with divergent social breeding values and different backtest classifications in barren and straw-enriched housing
Contributor(s):: Reimert, Inonge, Rodenburg, T. Bas, Ursinus, Winanda W., Kemp, Bas, Bolhuis, J. Elizabeth
The growth of a pig is not only affected by its own genes, but also by the genes of its pen mates. This indirect effect on a pig's growth is represented as social breeding value (SBV) in a newly developed breeding model. It has been hypothesized that pigs could affect their pen mates’ growth...
The effect of combining different environmental enrichment materials on enrichment use by growing pigs
Contributor(s):: Guy, Jonathan H., Meads, Zoe A., Shiel, Robert S., Edwards, Sandra A.
EU legislation requires that growing pigs are provided with suitable materials that satisfy their needs for investigation and manipulation. Although commercial pig keepers have tried a variety of different enrichment materials and methods of presentation, the benefits to the pig have not always...
Simply a nest? Effects of different enrichments on stereotypic and anxiety-related behaviour in mice
Contributor(s):: Gross, Alexandra Nam-Mi, Engel, Anna Katarina Julia, Würbel, Hanno
Improving the home cages of laboratory mice by environmental enrichment has been widely used to reduce cage stereotypies and anxiety-related behaviour in behavioural tests. However, enrichment studies differ substantially in type, complexity and variation of enrichments. Therefore, it is unclear...
Effect of pre-weaning temporary isolation within different age periods on the early post-weaning behaviour of juvenile lambs
Contributor(s):: Simitzis, Panagiotis, Petrou, Miria, Demiris, Nikos, Deligeorgis, Stelios
Temporary maternal separation is a stressful situation typical under modern husbandry practices and may have an undesirable impact on lamb welfare. However, at present there is insufficient evidence on temporary maternal separation effects on the behaviour of juvenile lambs. The aim of the...
Motivation of naïve feedlot cattle to obtain grain and individual responses to novelty
Contributor(s):: Van Os, Jennifer M. C., Mintline, Erin M., DeVries, Trevor J., Tucker, Cassandra B.
Beef cattle may be fattened before slaughter using a high-energy, grain-based diet. Although previous research suggests cattle prefer grain, their motivation to obtain this feed has not been quantified. The objective of this study was to evaluate the motivation of naïve feedlot cattle to consume...
Response to novelty as an indicator of reptile welfare
Contributor(s):: Moszuti, Sophie A., Wilkinson, Anna, Burman, Oliver H. P.
Whilst a great deal of research has been focused on identifying ways to assess the welfare of captive mammals and birds, there is comparatively little knowledge on how reptilian species are affected by captivity, and the ways in which their welfare can be accurately assessed. The present study...
The effects of enrichment novelty versus complexity in cages of group-housed rats (Rattus norvegicus)
Contributor(s):: Abou-Ismail, Usama A., Mendl, Michael T.
Although experimental work on environmental enrichment has answered many important questions, it is not yet known whether beneficial effects of enrichment are more strongly influenced by regular provision of novel objects, or by the diversity of objects present at any one time. In a...
Temperament in preweanling horses: Development of reactions to humans and novelty, and startle responses
Contributor(s):: Lansade, L., Bouissou, M. F., Boivin, X.