Aggressive behaviour at regrouping is a poor predictor of chronic aggression in stable social groups
Contributor(s):: Turner, Simon P., Nevison, Ian M., Desire, Suzanne, Camerlink, Irene, Roehe, Rainer, Ison, Sarah H., Farish, Marianne, Jack, Mhairi C., D’Eath, Richard B.
Commercial pigs globally are routinely mixed into new social groups. This results in regrouping aggression predominantly during the first 24h which compromises welfare and productivity. Chronic aggression persists thereafter and is also undesirable. Management strategies are needed that reduce...
Hierarchical status and body traits and reproductive characteristics of male pampas deer (Ozotoceros bezoarticus) maintained in all-male groups
Contributor(s):: Villagrán, Matías, Beracochea, Florencia, Bartoš, Luděk, Ungerfeld, Rodolfo
An animal's social environment can influence individual physiological and reproductive status, which might have implications for the success of ex situ conservation programs. This study investigated the relationship between an individual's position in the social hierarchy, body and antler size,...
Fighting nature: an analysis and critique of breed-specific flourishing arguments for dog fights
Contributor(s):: Werkheiser, I.
Social science literature on dog fighting illustrates an important element in the discourse of dog fighters, namely patriarchy. However, it has not addressed another common element, namely flourishing. According to this element of that discourse, some dog breeds are born to fight, and therefore...
How to do everything better.
'Bling with bite' - the rise of status and weapon dogs
Contributor(s):: Harding, S.
Dog fighting: a basic overview
Contributor(s):: Destreza, K.
Never get sick!
Contributor(s):: Kirchheimer, Sid, Giralt, Steve
Integrative approaches for cardiovascular disease
Contributor(s):: Guarneri, M., Mercado, N., Suhar, C.
Behavioural, endocrine and immune consequences of mixing in weaned piglets
Contributor(s):: Merlot, E., Meunier-Salaun, M. C., Prunier, A.
Mixing piglets at weaning increases plasma cortisol concentrations and agonistic behaviour. In contrast to what is observed in older pigs, studies failed to show any effect of social environment on other behavioural variables or on immune function. The lack of effect of mixing may not reflect an...
Intercat aggression: a retrospective study examining types of aggression, sexes of fighting pairs, and effectiveness of treatment
Contributor(s):: Lindell, E. M., Erb, H. N., Houpt, K. A.
48 cases of intercat aggression, presented to the Animal Behaviour Clinic at New York State College of Veterinary Medicine at Cornell University between 1988 and 1994, were examined retrospectively. Clients were contacted by telephone so that the outcome of the treatment programme could be...
Preliminary comparisons of male/male interactions within bachelor and breeding groups of western lowland gorillas ( Gorilla gorilla gorilla ). (Special issue: Primates in zoos)
Contributor(s):: Pullen, P. K.
The establishment of bachelor groups of western lowland gorillas (Gorilla gorilla gorilla) in captivity was considered to be a necessary husbandry step in response to growing concern within the European and North American cooperative breeding programmes that breeding situations are limited...
A brief report on aggressive interactions within and between groups of domestic turkeys ( Meleagris gallopavo )
Contributor(s):: Buchwalder, T., Huber-Eicher, B.
Aggressive encounters and injuries due to head pecking seriously threaten the welfare of domestic turkeys and also result in economic waste within the turkey industry. The aim of this study was to investigate whether domestic turkey toms distinguish group members from non-group members and if...
High blood pressure: an integrative approach: a natural standard monograph
Social eavesdropping in the domestic dog
Contributor(s):: Marshall-Pescini, S., Passalacqua, C., Ferrario, A., Valsecchi, P., Prato-Previde, E.
Eavesdropping on third-party interactions has been observed in a number of species and is considered an important source of information in decision-making processes relating to fighting and mate choice. Human beings, however, use publicly available information flexibly in many different contexts...
Toward a resolution of the paradox of aggressive displays: I. Optimal deceit in the communication of fighting ability
Contributor(s):: Alan B. Bond
One inference from game theory models of animal conflict is that adversaries should not inform one another about concealed components of their fighting ability. This poses a paradox for the customary ethological account of aggressive displays in that it is usually assumed that the primary...
Public law 110–22
To amend title 18, United States Code, to strengthen prohibitions against animal fighting, and for other purposes.
Incidence and impact of dog attacks on guide dogs in the UK
| Contributor(s):: Brooks, A., Moxon, R., England, G. C. W.
In a retrospective survey, researchers identified 100 incidents of attacks on guide dogs by other dogs. These were reviewed in order to determine the number, severity and impact on the handler and dog, and the characteristics of the aggressors and victims. During the study period there were more...
The relationship between reaction to humans and aggressiveness towards congeners in pregnant sows. (Varia No.9) [French]
| Contributor(s):: Kervella, M., Lensink, J., Bretagne, T. de
A study was conducted to characterize pregnant sows according to their aggression towards conspecifics and their response during a test approach by humans and to investigate the potential link between these two behavioural characteristics. Observations were made on 133 pregnant primiparous and...
The accumulation of skin lesions and their use as a predictor of individual aggressiveness in pigs
| Contributor(s):: Turner, S. P., Farnworth, M. J., White, I. M. S., Brotherstone, S., Mendl, M., Knap, P., Penny, P., Lawrence, A. B.
Post-mixing aggression in commercially housed pigs can be intense and often results in the accumulation of skin lesions. The number of lesions (lesion score, LS) has often been used as a proxy indicator of post-mixing aggression. There has been no previous attempt to quantify the role of...
Effect of partitioning pens on aggressive behavior of pigs regrouped at weaning
| Contributor(s):: Olesen, L. S., Nygaard, C. M., Friend, T. H., Bushong, D., Knabe, D. A., Vestergaard, K. S., Vaughan, R. K.
In 2 trials, pigs were weaned at 28.5 days of age, stratified by body weight and assigned to groups of 7 on the condition that no more than 2 pigs in any group were from the same litter. Each group was housed in nursery pens which contained or did not contain (control) a partition. The partition,...