'subordination style' in pigs? The response of pregnant sows to mixing stress affects their offspring's behaviour and stress reactivity
Contributor(s):: Ison, S. H., D'Eath, R. B., Robson, S. K., Baxter, E. M., Ormandy, E., Douglas, A. J., Russell, J. A., Lawrence, A. B., Jarvis, S.
In various mammals stress during gestation can result in long term effects on the behaviour and physiology of the offspring. The aims of this study were (i) to characterise individual variation among primiparous sows (gilts) in their behavioural and physiological response to a commercially...
A 4000 year-old introduction of domestic pigs into the Philippine archipelago: implications for understanding routes of human migration through island Southeast Asia and Wallacea
Contributor(s):: Piper, Philip J.
A case control study of on-farm risk factors for tail biting in pigs
Contributor(s):: Moinard, C., Mendl, M., Nicol, C. J., Green, L. E.
A combination of behavioral and physiological indicators for assessing pig welfare on the farm
Contributor(s):: Candiani, D., Salamano, G., Mellia, E., Doglione, L., Bruno, R., Toussaint, M., Gruys, E.
The purpose of this research was to identify pig welfare indicators that could help in recognizing stressful practices on farm. The study evaluated behavioral and physiological indicators (cortisol and negative acute phase proteins) in 2 groups of 20 female pigs 4 months old after a 48-hr...
A comparison of inferential analysis methods for multilevel studies: Implications for drawing conclusions in animal welfare science
Contributor(s):: Stevens, Kara N., Asher, Lucy, Griffin, Kym, Friel, Mary, O'Connell, Niamh, Collins, Lisa M.
Investigations comparing the behaviour and welfare of animals in different environments have led to mixed and often conflicting results. These could arise from genuine differences in welfare, poor validity of indicators, low statistical power, publication bias, or inappropriate statistical...
A field assessment of the effect of pre-slaughter conditions and genetic-stress susceptibility on blood welfare indicators in pigs
Contributor(s):: Guardia, M. D., Estany, J., Alvarez-Rodriguez, J., Manteca, X., Tor, M., Oliver, M. A., Gispert, M., Diestre, A.
A flooring comparison: the impact of rubber mats on the health, behavior, and welfare of group-housed sows at breeding
Contributor(s):: Elmore, M. R. P., Garner, J. P., Johnson, A. K., Richert, B. T., Pajor, E. A.
Comfortable flooring may impact many aspects of an animal's welfare, including lying behavior, an animal's ability to change postures, and incidence of lameness and lesions. Therefore, we hypothesized that the addition of rubber mats to stalls of group pens would improve sow health, comfort and...
A general reaction pattern across situations in prepubertal gilts
Contributor(s):: Thodberg, K., Jensen, K. H., Herskin, M. S.
56 prepubertal crossbred Landrace/Yorkshire gilts were subjected to a Food Competition Test, an Open Field Test, a Human Test and a Social Test. The undisturbed behaviour was video recorded in the home pen before the tests were performed. Factor analysis on open field data identified 5 factors,...
A longitudinal study of the effects of providing straw at different stages of life on tail-biting and other behaviour in commercially housed pigs
Contributor(s):: Statham, Poppy, Green, Laura, Mendl, Michael
Tail-biting (TB) is a welfare concern. Recent studies indicate that early provision of straw may help prevent TB, however, many of these studies were carried out on small groups of pigs and may have limited applicability to commercial farms. The effect of providing straw at different stages of...
A meta-analysis of the combined effect of housing and environmental enrichment characteristics on the behaviour and performance of pigs
Contributor(s):: Averos, X., Brossard, L., Dourmad, J. Y., Greef, K. H. de, Edge, H. L., Edwards, S. A., Meunier-Salaun, M. C.
To quantify the combined effect of housing conditions and environmental enrichment on the behaviour and performance of pigs, a meta-analysis was performed using information from 45 experiments in 42 published manuscripts. Multiple regression models were applied to evaluate the effects of space...
A method for the economic valuation of animal welfare benefits using a single welfare score
Contributor(s):: Bennett, R., Kehlbacher, A., Balcombe, K.
A multidisciplinary approach to assess the welfare of weaned pigs during transport at three space allowances
Contributor(s):: Sutherland, M. A., Bryer, P. J., Davis, B. L., McGlone, J. J.
Transport can be a stressful experience for pigs, especially in pigs simultaneously experiencing weaning stress. The objective of this study was to use a multidisciplinary approach to assess the welfare of weaned pigs during transport at 3 space allowances. A commercial semitrailer, fitted with...
A note on genetic parameters of gilt responses to humans
Contributor(s):: Hellbrugge, B., Tolle, K. H., Presuhn, U., Krieter, J.
In this study, a response test towards a stockperson was evaluated for improved maternal behaviour and increased piglet survival. Records were available from 638 German Landrace gilts with 860 observations tested for the response to an observer in the familiar environment of the mating centre....
A note on simulating the 'observer effect' using constant photoperiod on nursery pigs
Contributor(s):: Lay, D. C., Jr., Buchanan, H. S., Haussmann, M. F.
Often, researchers using video cameras to record animal behaviour must resort to illuminating the environment to obtain data during the night hours. This study was designed to determine if the behaviour of pigs is altered by constant illumination. Pigs (24+or-0.95 days of age, 5.58+or-0.18 kg)...
A note on the effect of gestation housing environment on approach test measures in gilts
Contributor(s):: Marchant-Forde, J. N., Bradshaw, R. H., Marchant-Forde, R. M., Broom, D. M.
Systems' welfare evaluation, including behavioural testing, is becoming increasingly popular in farm animal assurance schemes. The aims of this study were to investigate whether fairly short-term exposure to gestation housing systems, which varied in physical, environmental and human-input...
A note on the effect of handling quality prior to mixing on behaviour at mixing in pigs
Contributor(s):: Mendl, M., Young, S., Lawrence, A. B.
Previous research has raised the possibility that levels of aggression between pigs may be influenced by their state of arousal and excitement at the time of mixing. This may, in turn, be affected by factors such as the way in which pigs are handled prior to mixing. We attempted the first...
A note on the effects of additional sow gruntings on suckling behaviour in piglets
Contributor(s):: Kasanen, S., Algers, B.
The aim of this project was to determine if it is possible to stimulate suckling in piglets kept with their mother to suck by exposing them to a recorded grunting of a sow, and if so, to study if they act normally when their own mother is grunting. Finally, we wanted to find out how the piglets...
A note on the influence of starting position, time of testing and test order on the backtest in pigs
Contributor(s):: Erp-van der Kooij, E. van, Kuijpers, A. H., Eerdenburg, F. J. C. M. van, Tielen, M. J. M.
The backtest determines the coping behaviour of a piglet in a standardized stress situation, which might be a measure for the coping style of that animal. Backtest results are related to other parameters such as immune responses and production. In this study, the backtest was standardized and it...
A note on the relationship between the behavioural response of lactating sows to humans and the survival of their piglets
Contributor(s):: Hemsworth, P. H., Pedersen, V., Cox, M., Cronin, G. M., Coleman, G. J.
The objective of this study was to examine the relationships, based on unit averages, between the behavioural responses of lactating sows to humans and the performance of sows in 25 farrowing units at a large commercial farm. The behavioural responses of 25 sows in each farrowing unit were...
A note on visual, olfactory and spatial cue use in foraging behavior of pigs: indirectly assessing cognitive abilities
Contributor(s):: Croney, C. C., Adams, K. M., Washington, C. G., Stricklin, W. R.
The micro pig's (Sus scrofa) ability to use visual, olfactory and spatial cues to locate a food resource in a novel environment was investigated. In Experiment 1, four castrated male pigs were trained to identify a food resource - one of two plastic flower-pots placed within a 12.8 m x 6.7 m...