Social Condition

Includes social housing, social enrichment, social isolation, social buffering, and emotional contagion.

Theil, J. H., Beisner, B. A., Hill, A. E. et al. 2017. Effects of human management events on conspecific aggression in captive rhesus macaques (Macaca mulatta). JAALAS 56(2), 122-130.

Conspecific aggression in outdoor-housed rhesus macaques (Macaca mulatta) at primate research facilities is a leading source of trauma and can potentially influence animal wellbeing and research quality. Although aggression between macaques is a normal part...

Truelove, M. A., Martin, A. L., Perlman, J. E. et al. 2017. Two methods of social separation for paired adolescent male rhesus macaques (Macaca mulatta). JAALAS 56(6), 729-734.

Literature-based recommendations regarding how to separate pairs of laboratory-housed NHP when required for research, veterinary, or management needs are unavailable. This study assessed 2 separation techniques—rapid and stepwise—to determine whether a period of limited social...

Bardi, M., Prugh, A. M., Eubanks, B. T. et al. 2017. Physiologic correlates of interactions between adult male and immature long-tailed macaques (Macaca fascicularis). JAALAS 56(6), 718-728.

Interactions between adult males and immature members of the same species are rare in most mammals; in contrast, an estimated 40% of primate species are characterized by an involvement of males in the social life...

Stammen, R. L., Cohen, J. K., Meeker, T. L. et al. 2018. Effect of chronic social stress on prenatal transfer of antitetanus immunity in captive breeding rhesus macaques (Macaca mulatta). JAALAS 57(4), 357-367.

Because tetanus can cause significant morbidity and mortality in NHP, colonywide vaccination with tetanus toxoid is recommended for outdoor breeding colonies of rhesus macaques, with primary immunizations commonly given to infants at 6 mo of...

Pinelli, C., Leri, F., Turner, P. 2017. Long term physiologic and behavioural effects of housing density and environmental resource provision for adult male and female Sprague Dawley rats. Animals 7(6), 44.

There is considerable interest in refining laboratory rodent environments to promote animal well-being, as well as research reproducibility. Few studies have evaluated the long term impact of enhancing rodent environments with resources and additional cagemates...

Kappel, S., Hawkins, P., Mendl, M. 2017. To group or not to group? Good practice for housing male laboratory mice. Animals 7(12), 88.

It is widely recommended to group-house male laboratory mice because they are ‘social animals’, but male mice do not naturally share territories and aggression can be a serious welfare problem. Even without aggression, not all...

McGreevy, P., Berger, J., de Brauwere, N. et al. 2018. Using the five domains model to assess the adverse impacts of husbandry, veterinary, and equitation interventions on horse welfare. Animals 8(3), 41.

The aim of this study was to conduct a series of paper-based exercises in order to assess the negative (adverse) welfare impacts, if any, of common interventions on domestic horses across a broad range of...

Gaskill, B. N., Stottler, A. M., Garner, J. P. et al. 2017. The effect of early life experience, environment, and genetic factors on spontaneous home-cage aggression-related wounding in male C57BL/6 mice. Lab Animal 46(4), 176-184.

Aggression is a major welfare issue in mice, particularly when mice unfamiliar to each other are first placed in cages, as happens on receipt from a vendor, and following cage cleaning. Injuries from aggression are...

Weber, E. M., Dallaire, J. A., Gaskill, B. N. et al. 2017. Aggression in group-housed laboratory mice: Why can’t we solve the problem? Lab Animal 46(4), 157-161.

Group housing is highly important for social animals. However, it can also give rise to aggression, one of the most serious welfare concerns in laboratory mouse husbandry. Severe fighting can lead to pain, injury and...

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