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  1. More eggs but less social and more fearful? Differences in behavioral traits in relation to the phylogenetic background and productivity level in laying hens

    Contributor(s):: Dudde, Anissa, Schrader, Lars, Weigend, Steffen, Matthews, Lindsay R., Krause, E. Tobias

    Different lines of laying hens have undergone a strong selection pressure for productivity traits, which has been proposed as a potential cause of undesirable side effects like behavioural disorders. One reason for such behavioral changes might be due to energy trade-offs, as high productive...

  2. Short- and Long-Term Effects of Unpredictable Repeated Negative Stimuli on Japanese Quail's Fear of Humans

    Full-text: Available

    | Contributor(s):: Agathe Laurence, Sophie Lumineau, Ludovic Calandreau, Cécile Arnould, Christine Leterrier, Alain Boissy, Cécilia Houdelier

    Numerous aversive events occur in poultry production, and if repeated and unpredictable, can result in an impaired welfare. Some events such as handling can be perceived negatively and it is of interest to understand how humans' behaviour could affect poultry's behaviours and especially...

  3. Urban Animals: Human-Poultry Relationships in Later Post-Medieval Belfast

    | Contributor(s):: B. Tyr Fothergill

    Live animals were a ubiquitous feature of post-medieval cities and provided a variety of products to a broad cross-section of society. Poultry species were portable and accessible to people of modest means. Yet, the quotidian presence of poultry contrasts with the lack of attention to urban...

  4. Genetic and phenotypic evidence of the Salmonella enterica serotype Enteritidis human-animal interface in Chile

    | Contributor(s):: Patricio Retamal Merino, Marcela Fresno, Catherine Dougnac, Sindy Gutiérrez, Vanessa Gornall, Roberto Vidal, Rolando Vernal, Myriam Pujol, Marlen Barreto, Daniel González Acuña, Pedro Abalos Pineda

    Salmonella enterica serotype Enteritidis is a worldwide zoonotic agent that has been recognized as a very important food-borne bacterial pathogen, mainly associated with consumption of poultry products. The aim of this work was to determine genotypic and phenotypic evidence of S. Enteritidis...

  5. Ranging Behaviour of Commercial Free-Range Broiler Chickens 2: Individual Variation

    | Contributor(s):: Peta S Taylor, Paul H Hemsworth, Peter J Groves, Sabine G Gebhardt-Henrich, Jean-Loup Rault

    Little is known about broiler chicken ranging behaviour. Previous studies have monitored ranging behaviour at flock level but whether individual ranging behaviour varies within a flock is unknown. Using Radio Frequency Identification technology, we tracked 1200 individual ROSS 308 broiler...

  6. Ranging Behaviour of Commercial Free-Range Broiler Chickens 1: Factors Related to Flock Variability

    | Contributor(s):: Peta S Taylor, Paul H Hemsworth, Peter J Groves, Sabine G Gebhardt-Henrich, Jean-Loup Rault

    Little is known about the ranging behaviour of chickens. Understanding ranging behaviour is required to improve management and shed and range design to ensure optimal ranging opportunities. Using Radio Frequency Identification technology, we tracked 300 individual broiler chickens in each of four...

  7. Validation of HOBO Pendant data loggers for automated step detection in two age classes of male turkeys: growers and finishers

    | Contributor(s):: Dalton, H. A., Wood, B. J., Dickey, J. P., Torrey, S.

    Activity levels can be used as a predictor of health status, physical condition, feed efficiency, and coping style in animals. Small, portable data loggers have been validated as an inexpensive and effective alternative to video or live observation for automated activity detection in several...

  8. Social networks and welfare in future animal management

    | Contributor(s):: Koene, P., Ipema, B.

    It may become advantageous to keep human-managed animals in the social network groups to which they have adapted. Data concerning the social networks of farm animal species and their ancestors are scarce but essential to establishing the importance of a natural social network for farmed animal...

  9. Attitudes of veterinary students in Croatia toward farm animal welfare

    | Contributor(s):: Ostovic, M., Mesic, Z., Mikus, T., Matkovic, K., Pavicic, Z.

    This survey was undertaken to assess the attitudes of Croatian veterinary students regarding farm animal welfare issues. The study included students of all undergraduate years at the only Faculty of Veterinary Medicine in Croatia. First-year students were surveyed twice, ie before and after...

  10. Farmer attitudes to injurious pecking in laying hens and to potential control strategies

    | Contributor(s):: Palczynski, L. J., Buller, H., Lambton, S. L., Weeks, C. A.

    Farmers' recognition of health and welfare problems, and their responses to related intervention programmes, such as those to reduce injurious pecking in hens, directly influence the welfare of animals in their care. Changing those responses can be achieved through a re-positioning of social...

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

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

    Lame broiler chickens perform poorly in standardised mobility tests and have nociceptive thresholds that differ from those of non-lame birds, even when confounding factors such as differences in bodyweight are accounted for. This study investigated whether these altered responses could be due to...

  12. Tree cover and injurious feather-pecking in commercial flocks of free-range laying hens: a follow up

    | Contributor(s):: Bright, A., Gill, R., Willings, T. H.

    Injurious feather-pecking in non-cage systems is a serious economic and welfare concern for the egg-producing industry. This study presents results from data of over 1,000 flocks from producers who supplied free-range eggs to McDonald's Restaurants Ltd UK between 2008 and 2013. These producers...

  13. Consumer attitudes to injurious pecking in free-range egg production

    | Contributor(s):: Bennett, R. M., Jones, P. J., Nicol, C. J., Tranter, R. B., Weeks, C. A.

    Free-range egg producers face continuing problems from injurious pecking (IP) which has financial consequences for farmers and poor welfare implications for birds. Beak-trimming has been practised for many years to limit the damage caused by IP, but with the UK Government giving notification that...

  14. The contribution of broiler chicken welfare certification at farm level to enhancing overall animal welfare: the case of Brazil

    | Contributor(s):: Souza, A. P. O., Molento, C. F. M.

    The intensification of farm animal welfare debate has led to an increasing number of certification schemes covering this issue; however, there are concerns about the contribution of these schemes in improving welfare. The aims of this study were to identify certification schemes for broiler...

  15. Behavioural consequences of visual deprivation occurring at hatch or in the early life of chickens

    | Contributor(s):: Hocking, P. M., Haldane, K. A., Davidson, E. M., Sandoe, P., Kristensen, H. H.

    The development of behaviour in a line of chickens that are born sighted ( rdd) but turn blind after hatching was compared with a line that is blind at hatch ( beg) and with sighted White Leghorn controls (WL) to test the hypothesis that birds that become blind later in their life will show...

  16. Dustbathing, pecking and scratching behaviours of laying hens in furnished cages are enhanced by the presence of rubber mats and litter distribution

    | Contributor(s):: Guinebretiere, M., Michel, V., Arnould, C.

    Furnished cages for laying hens exist in a wide variety of sizes and designs and should be equipped to allow hens to express some of their behavioural priorities. European Council Directive 1999/74/EC stipulates that litter must be provided for pecking and scratching but the type of litter and...

  17. Effects of maternal vocalisations on the domestic chick stress response

    | Contributor(s):: Edgar, J., Kelland, I., Held, S., Paul, E., Nicol, C.

    Although natural brooding is not commercially feasible, there is great potential to simulate aspects of maternal care to improve the welfare of farmed domestic chicks. Our previous studies showed that the presence of calm broody hens can buffer mild stress responses in chicks, although the...

  18. Mate choice, maternal investment and implications for ostrich welfare in a farming environment

    | Contributor(s):: Bonato, M., Cherry, M. I., Cloete, S. W. P.

    At present, the ostrich industry is inefficient, on account of being characterised by inadequate egg production, high embryo mortality, poor chick survival and suboptimal growth rates. However, as ostrich farming commenced only in the mid 19th century in South Africa, farmed ostriches have had a...

  19. Moral "lock-in" in responsible innovation: the ethical and social aspects of killing day-old chicks and its alternatives

    | Contributor(s):: Bruijnis, M. R. N., Blok, V., Stassen, E. N., Gremmen, H. G. J.

    The aim of this paper is to provide a conceptual framework that will help in understanding and evaluating, along social and ethical lines, the issue of killing day-old male chicks and two alternative directions of responsible innovations to solve this issue. The following research questions are...

  20. Effects of variation in nest curtain design on pre-laying behaviour of domestic hens

    | Contributor(s):: Ringgenberg, N., Frohlich, E. K. F., Harlander-Matauschek, A., Toscano, M. J., Wurbel, H., Roth, B. A.

    Laying hens in loose-housing systems select a nest daily in which to lay their eggs among many identical looking nests, they often prefer corner nests. We investigated whether heterogeneity in nest curtain appearance - via colours and symbols - would influence nest selection and result in an even...