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  1. A review of video-based pig behavior recognition

    Contributor(s):: Yang, Qiumei, Xiao, Deqin

    Video surveillance technology has been applied in many farms and a large amount of video data has been generated. Extracting valuable information about the pig industry from video data is a challenging problem. Pig behavior recognition is one of the research hotspots. In order to facilitate...

  2. The effect of two different farrowing systems on sow behaviour, and piglet behaviour, mortality and growth

    Contributor(s):: Loftus, Loni, Bell, Grace, Padmore, Emily, Atkinson, Samantha, Henworth, Andrew, Hoyle, Mark

    Farrowing crates have traditionally been used to reduce occurrence of piglet mortality as a result of sow crushing. However the utilisation of traditional farrowing crates has been suggested to contribute to negative welfare for both the sow and piglets. This study compared mortality rates,...

  3. Dyadic affiliative preferences in a stable group of domestic pigs

    Contributor(s):: Goumon, Sébastien, Illmann, Gudrun, Leszkowová, Iva, Dostalová, Anne, Cantor, Mauricio

    Social preferences in pigs have received little attention despite the welfare implication of providing an adequate social environment for farm animals. We investigated the extent to which domestic pigs show affiliative preferences in three behavioural contexts—rest, exploration, social nosing—and...

  4. The opening of a hinged farrowing crate improves lactating sows’ welfare

    Contributor(s):: Ceballos, Maria Camila, Góis, Karen Camille R., Parsons, Thomas D.

    Concerns about the welfare of lactating sows housed in farrowing crates have emerged because crates physically restrict the sows and possibly compromise their behavior and comfort. The aim of this study was to identify how the opening of a hinged farrowing crate on different days (4 or 7)...

  5. Behavioral indicators of slow growth in nursery pigs

    Contributor(s):: He, Yijie, Deen, John, Shurson, Gerald C., Li, Yuzhi Z.

    The objective of this study was to determine how feeder-space allowance affects behaviors of slow- and fast-growing pigs during the nursery period. Nursery pigs (n = 192; initial weight = 7.4 ± 1.6 kg) were housed in 24 pens of 8 pigs, with 12 pens provided with either a two-space feeder or a...

  6. Tail biting behaviour and tail damage in pigs and the relationship with general behaviour: Predicting the inevitable?

    Contributor(s):: Ursinus, Winanda W., Van Reenen, Cornelis G., Kemp, Bas, Bolhuis, J. Elizabeth

    Tail biting behaviour in pigs is a common problem in conventional housing systems. Our study examined the consistency over time in tail biting and tail damage and it explored the predictive value of general behaviours observed in individual pigs and in pens as a whole. Pigs (n=480), reared in...

  7. Short- and long-term effects of eight enrichment materials on the behaviour of finishing pigs fed ad libitum or restrictively

    Contributor(s):: Zwicker, Bettina, Gygax, Lorenz, Wechsler, Beat, Weber, Roland

    In a semi-natural environment, a lot of the daily activity of pigs is spent in exploratory and foraging behaviour. Providing enrichment material attractive to the pigs both over the short and long term is therefore important in intensive housing systems. This study aimed to investigate the effect...

  8. A review of behavioural methods to study emotion and mood in pigs, Sus scrofa

    Contributor(s):: Murphy, Eimear, Nordquist, Rebecca E., van der Staay, Franz Josef

    The study of emotions in animals is of increasing importance to a number of disciplines such as animal welfare science and affective neuroscience. Pigs are a common farm animal species, most often reared in intensive systems. Moreover, they are increasingly being used in laboratories. To...

  9. The influence of a magnesium rich marine supplement on behaviour, salivary cortisol levels, and skin lesions in growing pigs exposed to acute stressors

    Contributor(s):: O’Driscoll, Keelin, Teixeira, Dayane Lemos, O’Gorman, Denise, Taylor, Stephen, Boyle, Laura Ann

    Pigs in intensive production systems typically experience multiple acute stressors which can have a negative impact on their welfare. This study investigated whether a magnesium (Mg) rich marine extract (SUPPLEMENT) could reduce the negative effects of mixing and an out-of-feed event on pig...

  10. Immunocastration with Improvac™ reduces aggressive and sexual behaviours in male pigs

    Contributor(s):: Brewster, Veronica, Nevel, Amanda

    Surgical castration of male pigs is a common practice to reduce the risk of boar taint, an accumulation of pheromones in the muscles of pigs giving an undesirable odour to the pork of entire boars. Castration is not widely practiced in the UK for welfare reasons and indeed, assurance schemes will...

  11. Genetic analysis of the individual pig behaviour in backtests and human approach tests

    Contributor(s):: Scheffler, K., Stamer, E., Traulsen, I., Krieter, J.

    The most recent development in pig production has focused increasingly on the well-being of the individual pig and animal-friendly housing conditions, i.e. the launch of the group housing of sows in the EU. In this regard, however, standard procedures which may be stressful to the animals and...

  12. Fresh wood reduces tail and ear biting and increases exploratory behaviour in finishing pigs

    Contributor(s):: Telkänranta, Helena, Bracke, Marc B. M., Valros, Anna

    Chewing and rooting are high behavioural priorities in pigs. Lack of suitable materials can lead to abnormal behaviours such as tail and ear biting. In commercial farming, slatted floors limit the use of straw, and various point-source objects have therefore been developed. The crucial challenge...

  13. Effects of neonatal castration on social behaviour, human–animal relationship and feeding activity in finishing pigs reared in a conventional or an enriched housing

    Contributor(s):: Tallet, Céline, Brilloüet, Armelle, Meunier-Salaün, Marie-Christine, Paulmier, Valérie, Guérin, Carole, Prunier, Armelle

    Raising entire males is already common in a few European countries. It has the advantage of avoiding the pain of castration. Entire males have also a better food conversion. However, they would be more aggressive than castrates which causes welfare troubles. The consequences for human–animal...

  14. Does stocking density modify affective state in pigs as assessed by cognitive bias, behavioural and physiological parameters?

    Contributor(s):: Scollo, Annalisa, Gottardo, Flaviana, Contiero, Barbara, Edwards, Sandra A.

    Recent studies suggest that emotional state can affect cognitive abilities of humans and non-human animals, determining biases in information processing. Negative mental states, such as anxiety or depression, induce pessimistic judgments of ambiguous stimuli. These assumptions may be used to...

  15. Tail biting in fattening pigs: Associations between frequency of tail biting and other abnormal behaviours

    Contributor(s):: Brunberg, Emma, Wallenbeck, Anna, Keeling, Linda J.

    This study investigated the association between tail biting (TB) and other abnormal behaviours in a group of non-tail docked pigs. Behavioural data were collected from 742 pigs housed on a commercial farm. The prevalence of performed and received TB, belly nosing, bar biting, ear biting and...

  16. Review of wallowing in pigs: Description of the behaviour and its motivational basis

    Contributor(s):: Bracke, M. B. M.

    Wallowing, i.e. coating the body surface with mud, is a natural behaviour of pigs, commonly observed in feral pigs and wild boar, but rarely provided for in current housing systems for domestic pigs. Furthermore, in welfare science the subject has not been receiving much attention. This paper...

  17. Peat as environmental enrichment for piglets: The effect on behaviour, skin lesions and production results

    Contributor(s):: Vanheukelom, Valerie, Driessen, Bert, Maenhout, Daniël, Geers, Rony

    The aim of this study was to examine whether the provision of small amounts of peat to piglets would influence behaviour and production. At approximately 5 days of age, nine litters received a tray of peat as enrichment, while nine others did not. All piglets had access to solid feed, which was...

  18. 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...

  19. Getting around social status: Motivation and enrichment use of dominant and subordinate sows in a group setting

    Contributor(s):: Elmore, Monica Renee Pittman, Garner, Joseph Paul, Johnson, Anna Kerr, Kirkden, Richard D., Richert, Brian Thomas, Pajor, Edmond Anthony

    Gestating sow motivation for enriched environments is unknown, but is essential knowledge for developing housing that addresses animal welfare concerns. This study investigated whether the motivation of gestating sows for access to an enriched group pen (containing a rubber mat, straw, compost,...

  20. Do pigs distinguish between situations of different emotional valences during anticipation?

    Contributor(s):: Imfeld-Mueller, Sabrina, Van Wezemael, Lea, Stauffacher, Markus, Gygax, Lorenz, Hillmann, Edna

    An animal's welfare is strongly affected by its emotional state. Thus, many recent studies have focused on measuring the emotional states and responses of animals. However, there is still a lack of knowledge on assessing positive emotions, although it is widely accepted that positive emotions are...