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  1. "Do not choose as I do!" - Dogs avoid the food that is indicated by another dog's gaze in a two-object choice task

    Contributor(s):: Balint, A., Farago, T., Meike, Z., Lenkei, R., Miklosi, A., Pongracz, P.

    Family dogs successfully follow human-given cues in a two-object choice test. However, whether this ability has any roots in dog-dog visual communication, has been seldom investigated. We designed a test where a video-projected, life-sized dog 'demonstrator' provided directional cues for the...

  2. A comparison of pet and purpose-bred research dog ( Canis familiaris) performance on human-guided object-choice tasks

    Contributor(s):: Lazarowski, L., Dorman, D. C.

    Several studies have shown that domestic dogs respond to human social cues such as pointing. Some experiments have shown that pet dogs outperformed wolves in following a momentary distal point. These findings have lent support to the hypothesis that domestication is responsible for domestic dogs'...

  3. A Tinbergian review of self-injurious behaviors in laboratory rhesus macaques

    Contributor(s):: Polanco, Andrea

    Self-injurious behaviors (SIBs) are a welfare and practical concern in laboratory rhesus macaques (Macaca mulatta), and may share a similar etiology to human SIBs. This review uses a Tinbergian perspective to investigate why rhesus monkeys perform SIBs. In addition to reviewing research...

  4. Animal agency, animal awareness and animal welfare

    Contributor(s):: Spinka, M.

  5. Association between personality and stereotypic behaviours in the African striped mouse Rhabdomys dilectus

    Contributor(s):: Joshi, Sneha, Pillay, Neville

    Stereotypic behaviours, which are abnormal, repetitive and invariant behaviours caused by frustration and/or central nervous system dysfunction, develop as a result of sub-optimal captive conditions that provide inadequate motor and sensory stimulation. However, not all individuals housed under...

  6. Behaviour of gilts before and at parturition after intensified human-animal contact, training to be driven, or exposure to a farrowing pen

    Contributor(s):: Brötje, Anska, Gygax, Lorenz, Hillmann, Edna, Wechsler, Beat

    During rearing and until first insemination, housing conditions of gilts are relatively constant and the few human-animal interactions negative. Around first parturition, however, gilts experience intensified contact with stockpersons and are subjected to new management procedures such as being...

  7. Behaviour test for eight-week old puppies - heritabilities of tested behaviour traits and its correspondence to later behaviour

    Contributor(s):: Wilsson, E., Sundgren, P. E.

    Play and exploratory behaviour, and behaviour when isolated (total of 10 tests) was tested in 630 German Shepherd puppies at 8 weeks of age. All dogs were also tested at 450-600 days of age using to regimen for selection of service dogs. Significant sex differences were found in 4 of the 10 puppy...

  8. Behavioural observations of puppies undergoing tail docking

    Contributor(s):: Noonan, G. J., Rand, J. S., Blackshaw, J. K., Priest, J.

    Tails were docked from 50 puppies of traditionally docked breeds, and the behaviours were recorded at docking and at 5 second intervals for the first minute followed by 10 second intervals until the pup settled to sleep. All puppies vocalized intensely (shrieking) at the time of amputation of the...

  9. Can sow pre-lying communication or good piglet condition prevent piglets from getting crushed?

    Contributor(s):: Melišová, Michala, Illmann, Gudrun, Andersen, Inger Lise, Vasdal, Guro, Haman, Jiří

    This study focused on the impact of sow–piglet communication during pre-lying behaviour and piglet condition on piglet location before the sow was lying down and on the incidence of piglet crushing. Eighteen loose-housed, Yorkshire×Norwegian Landrace sows and their litters were studied on Day 1...

  10. Can substrate in early rearing prevent feather pecking in adult laying hens?

    Contributor(s):: Jong, I. C. de, Reuvekamp, B. F. J., Gunnink, H.

  11. Chewable materials before weaning reduce tail biting in growing pigs

    Contributor(s):: Telkänranta, Helena, Swan, Kirsi, Hirvonen, Heikki, Valros, Anna

    Tail biting in pigs is a multi-factorial problem, and the early rearing environment has been proposed as a potential previously unidentified factor. The aim of this study was to test whether access to chewable material from birth to weaning reduces later tail biting. Undocked litters of 59 sows...

  12. Contagious yawning in domestic dog puppies ( Canis lupus familiaris): the effect of ontogeny and emotional closeness on low-level imitation in dogs

    Contributor(s):: Madsen, E. A., Persson, T.

    Contagious yawning is a well-documented phenomenon in humans and has recently attracted much attention from developmental and comparative sciences. The function, development and underlying mechanisms of the phenomenon, however, remain largely unclear. Contagious yawning has been demonstrated in...

  13. D.G.M. Wood-Gush Memorial Lecture: an applied ethologist looks at the question "Why"?

    Contributor(s):: Duncan, I. J. H.

  14. Development and consistency of fearfulness in horses from foal to adult

    Contributor(s):: Christensen, Janne Winther, Beblein, Carina, Malmkvist, Jens

    Understanding the development and consistency of behavioural responses across life stages is of both fundamental and applied interest. In horses, fearfulness is particularly important because fear reactions are a major cause of human-horse accidents, and because fear is a negative emotional state...

  15. Developmental instability and light regime in chickens ( Gallus gallus )

    Contributor(s):: Moller, A. P., Sanotra, G. S., Vestergaard, K. S.

    Fluctuating asymmetry, a measure of developmental instability, was measured in 3 skeletal characters in chickens raised under 3 different lighting regimes: (A) a 16:8 light-dark cycle, (B) a changing light regime, and (C) permanent light. Chickens reared under permanent light developed 40% larger...

  16. Dietary fatty acid composition significantly influenced the proactive-reactive behaviour of Senegalese sole ( Solea senegalensis) post-larvae

    Contributor(s):: Ibarra-Zatarain, Z., Morais, S., Bonacic, K., Campoverde, C., Duncan, N.

    Few studies have examined the influence of diet on larval proactive-reactive behavioural dimension of stress coping style responses. The present study evaluated the influence of using different vegetables oils (Linseed; Soybean; Olive) and fish oil (Cod liver) for Artemia metanauplii nutritional...

  17. Docosahexaenoic acid and neurologic development in animals

    Contributor(s):: Heinemann, K. M., Bauer, J. E.

    Analysis of data in puppies has revealed that feeding diets enriched in DHA to the dams during gestation and lactation and after weaning results in the accumulation of DHA in plasma lipids, which is associated with improvements in neurologic development, as indicated by the ERG response....

  18. Effect of cage size on the ontogeny of stereotyped behaviour in gerbils

    Contributor(s):: Wiedenmayer, C.

  19. Effect of feed and environmental enrichment on development of stereotypic wire-gnawing in laboratory mice

    Contributor(s):: Wurbel, H., Chapman, R., Rutland, C.

    At 21 days of age, 16 pairs of male ICR laboratory mice were weaned and allocated to 4 treatment groups in a 2 x 2 factorial design matched for genetic background (litter) and body weight. Factor one was the hardness of feed pellets with a significant 2.5-fold difference between soft and hard...

  20. Effects of feed- and water-based enrichment on activity and cannibalism in Muscovy ducklings

    | Contributor(s):: Riber, A. B., Mench, J. A.

    Cannibalism is a major problem for commercial production of Muscovy ducks (Cairina moschata). Surprisingly little is known about the ontogeny of cannibalism in ducks or how to reduce/prevent the problem in a welfare-friendly way. The preventative method typically used by the industry is...