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  1. Learning and context-specific exploration behaviour in hatchery and wild brown trout

    Contributor(s): Adriaenssens, Bart, Johnsson, Jörgen I.

    In this study we investigate whether rearing environment (wild vs. hatchery) affects the ability of brown trout parr (Salmo trutta) to learn two foraging tasks. Hatchery- and wild-reared brown trout were trained in two different foraging tasks: locating food hidden in a maze and finding a cryptic...

  2. Laying hens selected for low mortality: Behaviour in tests of fearfulness, anxiety and cognition

    Contributor(s): Nordquist, Rebecca E., Heerkens, Jasper L. T., Rodenburg, T. Bas, Boks, Sabine, Ellen, Esther D., van der Staay, F. Josef

    Feather pecking and cannibalism in chickens can lead to injury or to death of the victims, and is thus a serious welfare and economic issue in modern poultry farming. A sib selection scheme has been initiated to genetically select a low mortality line (LML), which shows decreased mortality due to...

  3. Laboratory macaques: When to wean?

    Contributor(s): Prescott, Mark J., Nixon, Mellissa E., Farningham, David A. H., Naiken, Sandiren, Griffiths, Mary-Ann

    Worldwide there is large variation in the age at which young macaques destined for use in research are permanently separated from their mothers, and in the subsequent social environment in which they are reared. This stems from variation in minimum weaning ages and rearing practices in guidelines...

  4. Keeping horses in groups: A review

    Contributor(s): Hartmann, Elke, Søndergaard, Eva, Keeling, Linda J.

    Although husbandry conditions for horses have improved over the last decades, many horses are still kept singly with limited or no physical contact to other horses. This is surprising, given the fact that keeping horses in groups is recognised best to fulfil their physical and behavioural needs,...

  5. Juvenile pigs use simple geometric 2D shapes but not portrait photographs of conspecifics as visual discriminative stimuli

    Contributor(s): Gieling, Elise T., Musschenga, Maartje A., Nordquist, Rebecca E., van der Staay, F. Josef

    Several animals living in social groups, such as monkeys, cows and sheep, have been shown to use facial discrimination for social recognition. Whether pigs can discriminate between faces of conspecifics purely based on visual stimuli provided by 2D portrait photographs, has not yet been...

  6. Is the avoidance distance test for the assessment of animals’ responsiveness to humans influenced by either the dominant or flightiest animal in the group?

    Contributor(s): Mazurek, Mickael, McGee, Mark, Minchin, William, Crowe, Mark A., Earley, Bernadette

    A previously described (Windschnurer et al., 2009) avoidance distance test was used to assess animals’ fear of humans in order to quantify the human–animal relationship (HAR). This study investigated the influence of the dominant and flightiest animals within a group on the responsiveness of...

  7. Investigations on feed intake and social behaviour of fattening pigs fed at an electronic feeding station

    Contributor(s): Hoy, Steffen, Schamun, Sonja, Weirich, Carmen

    For the study from a total of 679 female pigs kept in a progeny test station in 64 groups mostly with 12 pigs each, the data from all visits at an electronic feeding station (EFS) were analysed. In 93 pigs (8 groups) all agonistic interactions at the EFS were recorded in continuous observations...

  8. Investigation of distances covered by fattening pigs measured with VideoMotionTracker®

    Contributor(s): Brendle, Julia, Hoy, Steffen

    The investigation was carried out with altogether 144 pigs kept in groups of 6 or 12. Every pen was equipped with perforated floor. Water and the in-house compound feed with different elements depending on the fattening period were available ad libitum during the whole fattening period. At the...

  9. Investigating the influence of predictable and unpredictable feed delivery schedules upon the behaviour and welfare of Atlantic salmon parr (Salmo salar) using social network analysis and fin damage

    Contributor(s): Cañon Jones, Hernán Alberto, Noble, Chris, Damsgård, Børge, Pearce, Gareth P.

    Social network analysis was utilised to quantify the effect of short-term predictable (PD) and unpredictable (UD) feed delivery schedules of 10 days on behavioural interactions and the frequency and severity of fin damage in Atlantic salmon. Fin damage was only observed on the dorsal fin and its...

  10. Investigating the importance of vision in poultry: Comparing the behaviour of blind and sighted chickens

    Contributor(s): Collins, Sophie, Forkman, Björn, Kristensen, Helle H., Sandøe, Peter, Hocking, Paul M.

    Behaviour in poultry is predominately visually mediated and vision is important to the welfare of poultry. The relationship between vision, behaviour and welfare has primarily been investigated in relation to artificial lighting. Genetically blind chickens provide an alternative experimental...

  11. Investigating behavior assessment instruments to predict aggression in dogs

    Contributor(s): Bennett, Sara L., Litster, Annette, Weng, Hsin-Yi, Walker, Sheryl L., Luescher, Andrew U.

    This masked controlled study evaluated a group of dogs to determine if the results of two behavior assessments detected aggression in dogs that had a history of aggression according to a validated questionnaire for measuring behavior and temperament traits in dogs. Groups of dogs with or without...

  12. The introduction of individual goats into small established groups has serious negative effects on the introduced goat but not on resident goats

    Contributor(s): Patt, Antonia, Gygax, Lorenz, Wechsler, Beat, Hillmann, Edna, Palme, Rupert, Keil, Nina M.

    The introduction of an individual goat into an established group is likely to result in intense agonistic interactions, which may adversely affect the welfare of both the introduced goat and the resident goats. To assess this situation, we introduced eight horned and eight hornless goats one at a...

  13. Introduction of gum Arabic and guar to the diet of captive black-tufted ear marmosets

    Contributor(s): Pupe, Rafael, Tavares, Maria Clotilde Henriques, Barros, Marilia

    Gum plays a significant role in the feeding ecology of wild callitrichids and thus is also supplemented to several primate species in captivity. However, little is known about the feeding habits of black tufted-ear marmosets (including gummivory), in both wild and captive populations. Therefore,...

  14. Integration into the dairy cow herd: Long-term effects of mother contact during the first twelve weeks of life

    Contributor(s): Wagner, Kathrin, Barth, Kerstin, Palme, Rupert, Futschik, Andreas, Waiblinger, Susanne

    The objective of this study is to investigate the long-term effects of mother rearing on the ability to cope with the challenge of integration into the cow herd shortly before first parturition. Four groups of heifers with different levels of contact with their mothers during the first twelve...

  15. Influence of origin litter on social rank, agonistic behaviour and growth performance of piglets after weaning

    Contributor(s): Fels, Michaela, Hoy, Steffen, Hartung, Jörg

    In pig production, mixing of piglets after weaning is a common management practice often leading to severe fighting aimed at establishing a social hierarchy. The intention of our study was to investigate whether social rank of piglets obtained by fighting within 3 days after weaning and mixing...

  16. The influence of observer presence on baboon (Papio spp.) and rhesus macaque (Macaca mulatta) behaviour: A comment on

    Contributor(s): Hawkins, Penny

    2011Applied Animal Behaviour Science129154-550168-159110.1016/j.applanim.2010.11.011text

  17. Influence of nest-floor slope on the nest choice of laying hens

    Contributor(s): Stämpfli, Karin, Roth, Beatrice A., Buchwalder, Theres, Fröhlich, Ernst K. F.

    Group nests in alternative housing systems for laying hens primarily fulfil the hen's needs for seclusion and protection. Commercial nests used in Switzerland are built according to the provisions of the Swiss Animal Welfare Legislation. However, nest types can differ in aspects, such as floor...

  18. Influence of nest site on the behaviour of laying hens

    Contributor(s): Lentfer, Tine L., Gebhardt-Henrich, Sabine G., Fröhlich, Ernst K. F., von Borell, Eberhard

    Low rates of nest acceptance by laying hens are a major problem in commercial poultry farming operations with aviary systems, leading to costly manual collection and cleaning of mislaid eggs. To gain knowledge about factors affecting nest use, laying hens’ preferences for different nest locations...

  19. Influence of immunisation against GnRF on agonistic and mounting behaviour, serum testosterone concentration and body weight in male pigs compared with boars and barrows

    Contributor(s): Albrecht, Anna-Katharina, grosse Beilage, Elisabeth, Kanitz, Ellen, Puppe, Birger, Traulsen, Imke, Krieter, Joachim

    The aim of the present study was to assess the effects of vaccination against boar taint on testosterone levels, body weight and behaviour in male fattening pigs when compared with boars and barrows. The study was carried out in two replicates over time. Pigs were allocated to fattening pens...

  20. The influence of handling and exposure to a ferret on body temperature and running wheel activity of golden hamsters (Mesocricetus auratus)

    Contributor(s): Eberli, Patrizia, Gebhardt-Henrich, Sabine G., Steiger, Andreas

    In order to determine a stress response, two groups of twenty male golden hamsters were either exposed to a ferret or handled by a human. The hamsters’ body temperature and running wheel activity were measured as stress correlates. Half of the hamsters’ cages were equipped with a functional...