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  1. Is the rotarod test an objective alternative to the gait score for evaluating walking ability in chickens?

    Contributor(s):: Malchow, J., Dudde, A., Berk, J., Krause, E. T., Sanders, O., Puppe, B., Schrader, L.

  2. Improving leg health in broiler chickens: a systematic review of the effect of environmental enrichment

    Contributor(s):: Pedersen, I. J., Forkman, B.

  3. Effects of carprofen, meloxicam and butorphanol on broiler chickens' performance in mobility tests

    Contributor(s):: Hothersall, B., Caplen, G., Parker, R. M. A., Nicol, C. J., Waterman-Pearson, A. E., Weeks, C. A., Murrell, J. C.

  4. Impact of flooring type on the sham dustbathing behaviour of caged laying hens

    Contributor(s):: Moroki, Yuko

    Feed particles are preferred for foraging and they are also a stimulus for sham dustbathing. Most sham dustbathing bouts start with bill raking in the feed by caged hens. As hens often exhibit a floor scratching behaviour, an element of both sham dustbathing and foraging, by moving their legs...

  5. Provisioning of live black soldier fly larvae (Hermetia illucens) benefits broiler activity and leg health in a frequency- and dose-dependent manner

    Contributor(s):: Ipema, Allyson F., Gerrits, Walter J. J., Bokkers, Eddie A. M., Kemp, Bas, Bolhuis, J. Elizabeth

    Fast-growing broilers spend most their time inactive and are therefore prone to experience leg problems. Environmental enrichment that facilitates intrinsically motivated behaviours can potentially promote activity and reduce leg problems, thereby improving broiler welfare. A promising...

  6. Service animal as adjuvant treatment for restless leg syndrome

    Contributor(s):: Altschuler, E. L.

    2017Med Hypotheses1091990306-987710.1016/j.mehy.2017.10.017engDepartment of Physical Medicine and Rehabilitation, Metropolitan Hospital Center, New York, NY, USA. Electronic address:

  7. Evaluation of a dustbathing substrate and straw bales as environmental enrichments in commercial broiler housing

    Contributor(s):: Baxter, Mary, Bailie, Carley L., O’Connell, Niamh E.

    The use of straw bales as an environmental enrichment is common for broiler chickens in enriched housing systems, however relatively little information exists about their effectiveness in improving welfare. There has also been no widespread introduction of a dustbathing material for broilers. The...

  8. Effect of free-range access, shelter type and weather conditions on free-range use and welfare of slow-growing broiler chickens

    Contributor(s):: Stadig, Lisanne M., Rodenburg, T. Bas, Ampe, Bart, Reubens, Bert, Tuyttens, Frank A. M.

    Free-range access for broiler chickens can benefit animal welfare because the birds have access to a more natural environment and more opportunities to perform natural behaviours than in indoor systems. Also, they have more space and more environmental enrichment, which could lead to better leg...

  9. Changes in leg health, skin, and plumage condition in domestic male turkeys of varying body weights

    Contributor(s):: Dalton, Hillary A., Wood, Benjamin J., Widowski, Tina M., Guerin, Michele T., Torrey, Stephanie

    Injurious pecking in turkeys is a serious welfare and economic concern in commercial production. Yet, very little is known about the development of this behaviour, and whether it relates to physical characteristics of the turkey. The objective of this study was to investigate the relationships...

  10. Exploring perch provision options for commercial broiler chickens

    Contributor(s):: Bailie, Carley L., Baxter, Mary, O’Connell, Niamh E.

    Two related experiments involving broiler chickens are presented. Experiment 1 evaluated the use of six perch types: (1) an A-frame design (incorporating a platform and ramps), (2) a 'flat top' ramp, (3) a curved ramp, (4) a suspended bar, (5) a fixed bar and (6) a suspended platform. Two of each...

  11. Influence of stocking density on tonic immobility, lameness, and tibial dyschondroplasia in broilers

    Contributor(s):: Sanotra, G. S., Lawson, L. G., Vestergaard, K. S.

    This study assessed the effect of stocking density on the development of fear reaction (tonic immobility), lameness (gait), and tibial dyschondroplasia in broiler chicks of mixed sex. During 3 experiments, the study used 49 500 broiler chicks (Ross 208). Of these, 432 focal chicks were randomly...

  12. Development and testing of an on-farm welfare assessment protocol for dairy goats

    Contributor(s):: Muri, K., Stubsjoen, S. M., Valle, P. S.

  13. Opinions expressed by cattle breeders on human-animal relations and the conditions in which animals are kept

    Contributor(s):: Sitkowska, B., Piwczynski, D., Kowaliszyn, B., Mrowinski, M.

  14. A new method to measure behavioural activity levels in dairy cows

    Contributor(s):: Muller, R., Schrader, L.

    Changes in the behavioural activity of farm animals are widely used as an indicator for the assessment of animal welfare. In this study on dairy cattle we validated a new method for automatic 24 h recording of behavioural activity, the ActiwatchReg. activity monitoring system (AMS). The AMS is a...

  15. The behaviour of broiler chickens and its modification by lameness

    Contributor(s):: Weeks, C. A., Danbury, T. D., Davies, H. C., Hunt, P., Kestin, S. C.

    The behaviour of 6 replicates of approx. 100 broilers (Ross 308) obtained from commercial farms, fed ad-libitum and housed on a 23-h light:1-h dark schedule at 20 lx was observed using scan sampling. Comparisons were made between sound birds and those of varying degrees of lameness between 39 and...

  16. Validation of two measures of lameness in dairy cows

    | Contributor(s):: Rushen, J., Pombourcq, E., Passille, A. M. de

    To validate two methods for detecting lameness in cows, we gait scored lame and healthy lactating cows while walking and measured the percent of weight placed on each leg while standing, before and after injections of a local anaesthetic. Before injection, healthy cows had lower gait scores than...

  17. A comparison between leg problems in Danish and Swedish broiler production

    | Contributor(s):: Sanotra, G. S., Berg, C., Lund, J. D.

    In Denmark and Sweden, surveys were undertaken to estimate the prevalence of leg problems in conventional broiler production. The Danish survey included 28 Ross 208 flocks, and the Swedish survey included 15 Ross 208 and 16 Cobb flocks. Leg problems included reduced walking ability (gait), tibial...

  18. Can a modified Latency-to-Lie test be used to validate gait-scoring results in commercial broiler flocks?

    | Contributor(s):: Berg, C., Sanotra, G. S.

    Bodily contact with water is a novel and aversive experience for broiler chickens, and this has been used when designing the Latency to Lie (LTL) test. The original testing procedure, in which the birds are tested in groups, involves a certain settling period, which makes the test time-consuming...

  19. Effects of the addition of sand and string to pens on use of space, activity, tarsal angulations and bone composition in broiler chickens

    | Contributor(s):: Arnould, C., Bizeray, D., Faure, J. M., Leterrier, C.

    Fast-growing broiler chickens use pen-space heterogeneously and have low activity levels, related in part to leg problems. The aim of this study was to test the effects of the addition of string and sand trays to rearing pens on the use of space, levels of activity and leg problems. Broiler...