Can sleep and resting behaviours be used as indicators of welfare in shelter dogs (Canis lupusfamiliaris)?

Previous research on humans and animals suggests that the analysis of sleep patterns may reliably inform us about welfare status, but little research of this kind has been carried out for non-human animals in an applied context. This study explored the use of sleep and resting behaviour as indicators of welfare by describing the activity patterns of dogs (Canis lupus familiaris) housed in rescue shelters, and comparing their sleep patterns to other behavioural and cognitive measures of welfare. Sleep and activity patterns were observed over five non-consecutive days in a population of 15 dogs. Subsequently, the characteristics of sleep and resting behaviour were described and the impact of activity on patterns of sleep and resting behaviour analysed. Shelter dogs slept for 2.8% of the day, 14.3% less than previously reported and experienced less sleep fragmentation at night (32 sleep bouts). There were no statistically significant relationships between behaviours exhibited during the day and sleep behaviour. A higher proportion of daytime resting behaviour was significantly associated with a positive judgement bias, less repetitive behaviour and increased time spent coded as ‘relaxed’ across days by shelter staff. These results suggest that, in the context of a busy shelter environment, the ability to rest more during the day could be a sign of improved welfare. Considering the non-linear relationship between sleep and welfare in humans, the relationship between sleep and behavioural indicators of welfare, including judgement bias, in shelter dogs may be more complex than this study could detect

Ethogram of behaviours used as welfare indicators (after Titulaer <i>et al</i>. [3]).

<p>Ethogram of behaviours used as welfare indicators (after Titulaer <i>et al</i>. [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0163620#pone.0163620.ref003" target="_blank">3</a>]).</p

Relation between resting during the day and percentage of time showing repetitive behaviour.

<p>Relation between resting during the day and percentage of time showing repetitive behaviour.</p

Layout of the kennel.

<p>Layout of the kennel.</p

Definitions of individual sleep components used in analysis (following Zanghi <i>et al</i>., 2013 [28]).

<p>Definitions of individual sleep components used in analysis (following Zanghi <i>et al</i>., 2013 [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0163620#pone.0163620.ref028" target="_blank">28</a>]).</p

Pet dog bites in children: management and prevention.

Dog bite injuries are a significant public health problem and many are sustained by children. These injuries can be complex, both physically and psychologically, and in rare cases fatal. This paper will review current evidence-based approaches to treatment, explore identified patterns in biting incidents and discuss the effectiveness of prevention strategies. Safe management of these patients requires a comprehensive approach. Physical injuries need to be accurately assessed with a high index of suspicion for underlying injuries, particularly in younger children less able to communicate. Treatment depends on severity and location, but all bites must be irrigated to reduce the risk of infection but may not always require prophylactic antibiotic use. Careful exploration of the circumstances in which the bite occurred is essential to make safeguarding decisions and prevent future bites. Reducing the incidence of paediatric dog bites requires education of both children and parents that any dog can bite, regardless of breed, and all child-dog interactions must be highly supervised. However, education alone is unlikely to prevent dog bites. Policies that support environmental changes need to be developed such as provision of pet dogs less likely to bite (or bite as severely), through breeding for temperament and appropriate socialisation. Additionally, investment in psychological support for bite victims and their families is required to reduce the long-term impacts of being bitten

Online videos indicate human and dog behaviour preceding dog bites and the context in which bites occur

YouTube videos of dog bites present an unexplored opportunity to observe dog bites directly. We recorded the context of bites, bite severity, victim and dog characteristics for 143 videos and for 56 videos we coded human and dog behaviour before the bite. Perceived bite severity was derived from visual aspects of the bite. Associations between bite severity and victim, dog and context characteristics were analysed using a Bayesian hierarchical regression model. Human and dog behaviour before the bite were summarised with descriptive statistics. No significant differences in bite severity were observed between contexts. Only age of the victim was predictive of bite severity: adults were bitten more severely than infants and infants more severely than children. Non-neutral codes describing dog body posture and some displacement and appeasement behaviours increased approximately 20 seconds before the bite and humans made more tactile contacts with dogs 21 seconds before the bite. This analysis can help to improve understanding of context in which bites occur and improve bite prevention by highlighting observable human and dog behaviours occurring before the bite

Activity during the day and night.

<p>See table in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0163620#pone.0163620.s001" target="_blank">S1 Table</a> for the individual differences between dogs. </p