Does group size have an impact on welfare indicators in fattening pigs?
Contributor(s):: Meyer-Hamme, S. E. K., Lambertz, C., Gauly, M.
Production systems for fattening pigs have been characterized over the last 2 decades by rising farm sizes coupled with increasing group sizes. These developments resulted in a serious public discussion regarding animal welfare and health in these intensive production systems. Even though large...
Application of the Welfare Quality animal welfare assessment system in Finnish pig production, Part II: Associations between animal-based and environmental measures of welfare
Contributor(s):: Munsterhjelm, C., Heinonen, M., Valros, A.
This study aimed to establish associations between the environment and animal-based measures of welfare collected on 158 Finnish farms according to the Welfare Quality systems for pigs. The data consisted of 95 welfare assessments in fattening pigs and 103 in sows, including suckling piglets....
Comparison of the behaviour of piglets raised in an artificial rearing system or reared by the sow
Contributor(s):: Rzezniczek, M., Gygax, L., Wechsler, B., Weber, R.
Over the last 15 years, rising sow fertility has led to a considerable increase in litter size. As a consequence, the number of live born piglets may outnumber the number of functional teats, and surplus piglets are removed from the sow at the age of 3-6 days and fed with artificial milk. The...
The effects of human age, group composition, and behavior on the likelihood of being injured by attacking pumas
Contributor(s):: Coss, R. G., Fitzhugh, L. E., Schmid-Holmes, S., Kenyon, M. W., Etling, K.
Documentation from the years 1890 to 2000 of 185 instances of pumas (Puma concolor) attacking humans in the United States and Canada has provided statistical evidence that pumas are less likely to kill or injure humans in certain circumstances. We identified incidents of fatal attacks, severe...
Swedish cat shelters: a descriptive survey of husbandry practices, routines and management
Contributor(s):: Hirsch, E. N., Andersson, M., Loberg, J.
Animal shelters rescue and care for society's unwanted companion animals. Nonetheless, several studies have shown that ending up in a shelter can be stressful, and that shelter husbandry can amplify and spread certain diseases. The aim of the present study was to investigate and describe...
Aggression and welfare in a common aquarium fish, the Midas cichlid
Contributor(s):: Oldfield, R. G.
Many species of fishes are aggressive when placed in small aquaria. Aggression can negatively affect the welfare of those individuals toward whom it is directed. Animals may behave aggressively in order to defend resources such as food, shelter, mates, and offspring. The decision to defend...
Dairy cow behavior and welfare implications of time waiting before entry into the milking parlor
Contributor(s):: Dijkstra, C., Veermae, I., Praks, J., Poikalainen, V., Arney, D. R.
The objective of this study was to investigate dairy cows' time spent in the possibly stressful waiting area (WA) of the milking parlor (MP) and their behavioral patterns while there and thereby investigate comparative effects on their welfare. The experiments were carried out in 3 loose-housing...
Rat's demand for group size
Contributor(s):: Patterson-Kane, E. P., Hunt, M., Harper, D.
Social isolation compromises the welfare of rats. However, it is not clear how many rats should be housed together under laboratory conditions. Pair housing, sometimes recommended over group housing, may help avoid aggression and disease transmission. Female rats, however, showed the highest...
The welfare and productivity of dry sows in different group housing systems in New Zealand
Contributor(s):: Chidgey, K. L., Morel, P. C. H., Barugh, I. W.
This research aimed to evaluate sow welfare and identify potential welfare compromise in specific group housing systems for sows in New Zealand. The relationship between overall welfare outcome on-farm and sow productivity was also investigated. Twenty commercial farms were chosen to represent...
Effects of stocking rate on measures of efficacy and welfare during carbon dioxide gas euthanasia of young pigs
Contributor(s):: Fiedler, K. J., Parsons, R. L., Sadler, L. J., Millman, S. T.
The objective of this study was to evaluate the effects of chamber stocking rate on facets of animal welfare and efficacy during gas euthanasia of young pigs ( Sus scrofa domesticus). Crossbred pigs (390 neonatal and 270 weaned) designated for euthanasia at production farms were randomly assigned...
Identification of major welfare issues for captive elephant husbandry by stakeholders
Contributor(s):: Gurusamy, V., Tribe, A., Phillips, C. J. C.
Accurate identification of key welfare issues for captive elephants could improve standards and help in the development of a welfare index. In the absence of adequate scientific information on the relative importance of key issues, the views of a range of stakeholders were sought using adaptive...
Behavioural responses of Argentine coastal dusky dolphins Lagenorhynchus obscurus to a biopsy pole system
Contributor(s):: Loizaga de Castro, R., Hoelzel, A. R., Crespo, E. A.
A survey of the attitudes of stakeholders in the zoo industry towards the husbandry requirements of captive Great Apes
Contributor(s):: Fernie, A. C., Tribe, A., Murray, P. J., Lisle, A., Phillips, C. J. C.
Assessing pig welfare at stunning in Swedish commercial abattoirs using CO<sub>2</sub> group-stun methods
Contributor(s):: Atkinson, S., Velarde, A., Llonch, P., Algers, B.
Keeping horses in groups: a review
Contributor(s):: Hartmann, E., Sondergaard, E., Keeling, L. J.
The effect of housing system on the behaviour and growth parameters of fattening rabbits
Contributor(s):: Postollec, G., Boilletot, E., Maurice, R., Michel, V.
A comparison of cell-mediated immune responses in rhesus macaques housed singly, in pairs, or in groups
Contributor(s):: Schapiro, S. J., Nehete, P. N., Perlman, J. E., Sastry, K. J.
A variety of psychosocial factors have been shown to influence immunological responses in laboratory primates. The present investigation examined the effects of social housing condition on cell-mediated immune responses, comparing rhesus macaques (Macaca mulatta) in three housing conditions...
Altered aggression in different sized groups of crayfish supports a dynamic social behaviour model
Contributor(s):: Patullo, B. W., Baird, H. P., Macmillan, D. L.
Living in groups with conspecifics can increase an animal's fitness in the wild. A social environment may also be imposed by commercial farming industries. One important measure of competition and group dynamics is the level of aggressive interaction. This can also influence the level of damage...
Assessment of sub-grouping behaviour in pigs housed at different group sizes
Contributor(s):: Turner, S. P., Horgan, G. W., Edwards, S. A.
The group size within which a dominance hierarchy can function without modification is finite. Sub-grouping behaviour may fragment a large group into smaller units in which a dominance hierarchy may be preserved. This could be achieved by spatial localization, as indicated by the existence of...
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...