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  1. On-Farm Evaluation of an Automatic Enrichment Device with Maize Silage for Laying Hens

    Contributor(s):: Giersberg, Mona Franziska, Kemper, Nicole, Spindler, Birgit

    Challenges in alternative housing for laying hens are barren functional areas such as winter gardens and the occurrence of behavioral disorders. Environmental enrichment is a measure to deal with these problems. Therefore, an enrichment device offering maize silage automatically was tested in two...

  2. Effects of Two CO2 Stunning Methods on the Efficacy of Stunning and Blood Stress Indicators of Turkeys under Commercial Processing Conditions

    Contributor(s):: Guijarro, Angela, Mauri, Soledad, Aviles, Carmen, Peña, Francisco

    The effect of CO2 gas-stunning methods (G1: 30% CO2 15 sec, 55% CO2 40 sec, 70% CO2 45 sec; G2: 30% CO2 15 sec, 80% CO2 85 sec) on the efficacy of stunning, blood stress indicators and meat quality of turkeys were assessed. A total of 375 turkeys (125 heavy males, 125 light males, and 125 light...

  3. Effect of simple and low-cost enrichment items on behavioral, clinical, and productive variables of caged laying hens

    Contributor(s):: Frediani, Mayra H., Pizzutto, Cristiane S., Alves, Maíra B. R., Pereira, Ricardo J. G.

    Housing layers in battery cages is a practice still used by many countries but it has been criticized because of its influence on behavioral repertoire of birds. We investigated whether simple and affordable enrichment devices alone impact behavior, foot condition and performance of laying hens...

  4. The choice of litter material to promote pecking, scratching and dustbathing behaviours in laying hens housed in furnished cages

    Contributor(s):: Guinebretière, Maryse, Beyer, Helen, Arnould, Cécile, Michel, Virginie

    Since 2012 in the EU, cages for the housing of laying hens must provide nests, perches and a pecking and scratching area to promote natural behaviours and enhance animal welfare. Previous studies highlighted the difficulty of finding adequate materials for pecking and scratching areas in such...

  5. Cognitive bias and anticipatory behaviour of laying hens housed in basic and enriched pens

    Contributor(s):: Wichman, Anette, Keeling, Linda J., Forkman, Björn

    The performances of adult laying hens, housed in either a basic or an enriched pen, were investigated in a cognitive bias and an anticipation test. Both tests were designed to measure the assumed emotional state of the birds. The behaviour of birds in each test was compared to see whether both...

  6. 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...

  7. An automated positioning system for monitoring chickens’ location: Accuracy and registration success in a free-range area

    Contributor(s):: Stadig, Lisanne M., Ampe, Bart, Rodenburg, T. Bas, Reubens, Bert, Maselyne, Jarissa, Zhuang, Shaojie, Criel, Johan, Tuyttens, Frank A. M.

    Free-range use in chickens is often suboptimal, and the full potential of outdoor access for chicken welfare may not be achieved. Many studies use visual observations of free-range use, imposing several limitations. An automated system capable of continuously monitoring the location of multiple...

  8. Indoor side fidelity and outdoor ranging in commercial free-range chickens in single- or double-sided sheds

    Contributor(s):: Rault, Jean-Loup, Taylor, Peta S.

    The ranging behaviour of broiler chickens kept in free-range housing systems remains poorly understood, despite access to the outdoor range being their main feature. We investigated the impact of allowing chickens to have range access on both sides vs. one side of the shed, using 24 flocks of...

  9. 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...

  10. 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...

  11. Human-animal interactions: Survey of contact behavior relevant for the spread of infectious diseases

    | Contributor(s):: Yimer Wasihun Kifle

    Background: Approximately 75 percent of recently emerging infectious diseases that affect humans are diseases of animal origin, and approximately 60 percent of all human pathogens are zoonotic. Contact between humans and pets, livestock, poultry and other animals could enable transmission of...

  12. 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...

  13. 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...

  14. 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...

  15. 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...

  16. 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...

  17. 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...

  18. 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...

  19. 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...

  20. 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...