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  1. Hierarchy formation in newly mixed, group housed sows and management strategies aimed at reducing its impact

    Contributor(s):: Greenwood, Emma C., Plush, Kate J., van Wettere, William H. E. J., Hughes, Paul E.

    Aggression is at its highest when sows are first introduced to new animals and hierarchies are being established. Thus, methods to reduce aggression should focus on this period. The aggression that occurs during mixing results in physiological stress responses, which can have detrimental effects...

  2. The effect of pen design on free space utilization of sows group housed in gestation pens equipped with free access stalls

    Contributor(s):: Rioja-Lang, Fiona C., Hayne, Stephanie M., Gonyou, Harold W.

    This study investigated the implementation of walk-in/lock-in stalls (free access stalls) for group housed sows. The objectives were to compare two different pen configurations (‘I-pen’ vs. ‘T-pen’) by determining the proportion and type (size/parity) of sows that used the free space areas, and...

  3. Effects of confinement duration and parity on behavioural responses and the degree of psychological fear in pregnant sows

    Contributor(s):: Zhang, Ming-yue, Li, Xiang, Zhang, Xiao-hui, Liu, Hong-gui, Li, Jian-hong, Bao, Jun

    The aim of this study was to evaluate the effects of space restriction stress on the behavior of different parity sows, and it is necessary to understand such effects due to space restriction to improve the welfare of the sows in confined conditions. We selected 264 pregnant sows (Large White) at...

  4. A Decade of Progress toward Ending the Intensive Confinement of Farm Animals in the United States

    Contributor(s):: Sara Shields, Paul Shapiro, Andrew Rowan

    In this paper, the Humane Society of the United States (HSUS) farm animal protection work over the preceding decade is described from the perspective of the organization. Prior to 2002, there were few legal protections for animals on the farm, and in 2005, a new campaign at the HSUS began to...

  5. Aggressive behavior in two different group-housing systems for pregnant sows

    Contributor(s):: Chapinal, N., Ruiz-de-la-Torre, J. L., Cerisuelo, A., Gasa, J., Baucells, M. D., Manteca, X.

    The study housed 120 pregnant sows from Day 29 of pregnancy to 1 week before parturition either in groups of 10 with trickle feeding (TRICKLE) or in groups of 20 with an unprotected electronic sow feeding (FITMIX). The study recorded aggressive interaction on 11 nonconsecutive days. Frequency of...

  6. Feeder use patterns in group-housed pregnant sows fed with an unprotected electronic sow feeder (Fitmix)

    Contributor(s):: Chapinal, N., Ruiz-de-la-Torre, J. L., Cerisuelo, A., Baucells, M. D., Gasa, J., Manteca, X.

    Previous studies on feeder use in group-housed pregnant sows focused on dynamic groups and protected electronic sow feeders (ESF). This study observed 60 pregnant sows, 1st to 8th parity - housed from Day 29 of pregnancy to 1 week before parturition in stable groups of 20 animals, 1 Fitmix feeder...

  7. If you knew what was good for you! The value of environmental enrichments with known welfare benefits is not demonstrated by sows using operant techniques

    Contributor(s):: Elmore, M. R. P., Garner, J. P., Johnson, A. K., Kirkden, R. D., Richert, B. T., Pajor, E. A.

    This study assessed the motivation of gestating sows housed in standard, barren gestation stalls (used for breeding/implantation and/or gestation) for access to environmental enrichment. Enrichment consisted of a cotton rope or rubber mat in comparison to positive (additional food when fed at...

  8. Production costs and animal welfare for four stylized hog production systems

    Contributor(s):: Seibert, L., Norwood, F. B.

    Nonhuman animal welfare is arguably the most contentious issue facing the hog industry. Animal advocacy groups influence the regulation of hog farms and induce some consumers to demand more humane pork products. Hog producers are understandably reluctant to improve animal well being unless the...

  9. Living with cat and dog increases vaginal colonization with E. coli in pregnant women

    Contributor(s):: Stokholm, J., Schjorring, S., Pedersen, L., Bischoff, A. L., Folsgaard, N., Carson, C. G., Chawes, B., Bonnelykke, K., Molgaard, A., Krogfelt, K. A., Bisgaard, H.

  10. Condition, survival, and productivity of mule deer in semiarid grassland-woodland in east-central New Mexico

    Contributor(s):: Bender, L. C., Boren, J. C., Halbritter, H., Cox, S.

  11. Effect of short and long periods of separation on agonistic behaviour, injuries and stress in Herens cows kept in loose housing

    Contributor(s):: Castro, I. M. L., Gygax, L., Wechsler, B., Hauser, R.

  12. Farm animal welfare: assessing risks attributable to the prenatal environment

    Contributor(s):: Rutherford, K. M. D., Donald, R. D., Arnott, G., Rooke, J. A., Dixon, L., Mehers, J. J. M., Turnbull, J., Lawrence, A. B.

  13. Feeding Chromonaela odorata during pregnancy to goat dams affects acceptance of this feedstuff by their offspring

    Contributor(s):: Phan Vu, Hai, Everts, H., Dam Van, Tien, Schonewille, J. T., Hendriks, W. H.

  14. Repeated locomotion scoring of a sow herd to measure lameness: consistency over time, the effect of sow characteristics and inter-observer reliability

    Contributor(s):: D'Eath, R. B.

  15. The social environment and the epigenome

    Contributor(s):: Szyf, Moshe, McGowan, Patrick O., Turecki, Gustavo, Meaney, Michael J.

  16. Comparison of methods to assess fear of humans in sows

    Contributor(s):: Scott, K., Laws, D. M., Courboulay, V., Meunier-Salaun, M. C., Edwards, S. A.

    The aims of this study were to compare three different methods to assess fear of humans in sows, and identify the most practical and reliable method for on-farm welfare assessment. Fifty-five crossbred sows (Landrace x Large White x Duroc) of different parities and stages of pregnancy were each...

  17. Development of stereotypic behaviour in sows fed a starch diet or a non-starch polysaccharide diet during gestation and lactation over two parities

    Contributor(s):: Peet-Schwering, C. M. C. van der, Spoolder, H. A. M., Kemp, B., Binnendijk, G. P., Hartog, L. A. den, Verstegen, M. W. A.

    The effect of feeding sows a starch diet or a diet with a high level of fermentable non-starch polysaccharides (NSP) during gestation, lactation or both gestation and lactation over the first two parities on the development of stereotypic behaviour was studied in sows housed in groups during...

  18. Effect of different rearing systems and pre-kindling handling on behaviour and performance of rabbit does

    Contributor(s):: Mugnai, C., Bosco, A. dal, Castellini, C.

    The aim of this study was to ascertain how collective cage and pre-kindling handling (training does to go into their own nest) practices, in comparison to standard housing (single cage rearing), modify the behaviour and the performance of rabbit does. To this aim, 40 nulliparous New Zealand White...

  19. Effects of repeated stress during pregnancy in ewes on the behavioural and physiological responses to stressful events and birth weight of their offspring

    Contributor(s):: Roussel, S., Hemsworth, P. H., Boissy, A., Duvaux-Ponter, C.

    Stressors are frequently encountered during the pregnancies of farm animals. However, very few studies have investigated the effects of repeated stress in pregnant females on their offspring. Forty-eight ewes at 2.5 months of pregnancy were selected for their high or low cortisol response to...

  20. Feeding motivation in pregnant sows: effects of fibrous diets in an operant conditioning procedure

    Contributor(s):: Ramonet, Y., Bolduc, J., Bergeron, R., Robert, S., Meunier-Salaun, M. C.

    The effect of fibrous diets fed to pregnant sows on their feeding motivation was studied by an operant conditioning procedure. Fifteen multiparous pregnant sows were assigned to three dietary treatments, which differed in the nature of the fibrous components, according to a 3 x 3 Latin square...