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  1. Sleep-wake cycles and other night-time behaviours of the domestic dog Canis familiaris.

    Contributor(s):: Adams, G. J., Johnson, K. G.

    Sleep-wake cycles and other night-time behaviours were observed in 24 domestic dogs (Canis familiaris) living in various urban habitats. Recordings of 18 of these animals were made with a video camera under red light. On average, these dogs had 23 sleep-wake episodes during 8 h. The sleep-wake...

  2. Can sleep behaviour be used as an indicator of stress in group-housed rats ( Rattus norvegicus )?

    Contributor(s):: Abou-Ismail, U. A., Burman, O. H. P., Nicol, C. J., Mendl, M.

    We assessed the value of sleep behaviour as a novel measure of stress in group-housed animals. We observed, non-invasively, sleep behaviour in 144 group-housed rats, and related it to other physiological and physical indicators of stress and welfare. Sleep frequency and duration correlated...

  3. Effect of an open window and conspecifics within view on the welfare of stabled horses, estimated on the basis of positive and negative behavioural indicators

    Contributor(s):: Ninomiya, S., Kusunose, R., Obara, Y., Sato, S.

    The effect of environmental enrichment on the welfare of stabled horses was estimated on the basis of positive and negative behavioural indicators. Six stabled horses were exposed for seven days to each of two conditions in early spring: (i) a window at the back of the loose box was opened, but...

  4. Is sleep in animals affected by prior waking experiences?

    Contributor(s):: Langford, F. M., Cockram, M. S.

    Methods to assess changes in the mental state of animals in response to their environment can be used to provide information to enhance animal welfare. One of the most profound changes of mental state observable in mammals is the change between wakefulness and sleep. Sleeping mammals have...

  5. Sickness behaviour and its relevance to animal welfare assessment at the group level

    Contributor(s):: Millman, S. T.

    The inflammatory response evokes changes in behaviour including increased thermoregulatory activities and sleep, reduced social exploration and appetite, and altered food preferences. This sickness response also includes feelings of lethargy, depression, and pain, collectively referred to as...

  6. Survival and adaptation of a released group of confiscated capuchin monkeys

    Contributor(s):: Suarez, C. E., Gamboa, E. M., Claver, P., Nassar-Montoya, F.

    One commonly used method of managing confiscated wild primates in Latin American countries is to release rehabilitated individuals back to their natural habitats. However, little information has been collected from confiscated animal releases, so no clear guidelines have been developed to measure...