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  1. Feeding behavior and the effect of photoperiod on the performance and hematological parameters of the pacama catfish ( Lophiosilurus alexandri)

    Contributor(s):: Kitagawa, A. T., Costa, L. S., Paulino, R. R., Luz, R. K., Rosa, P. V., Guerra-Santos, B., Fortes-Silva, R.

    The aim of this study was to evaluate the rhythms of feeding and locomotor activity, the ability to synchronize to a fixed feeding time, and the influence of photoperiod on the growth parameters, feed intake and hematological parameters of a recently introduced fish in freshwater Brazilian...

  2. Performance decline by search dogs in repetitive tasks, and mitigation strategies

    Contributor(s):: Porritt, F., Shapiro, M., Waggoner, P., Mitchell, E., Thomson, T., Nicklin, S., Kacelnik, A.

    Differences between training and working contexts have the potential to be a major cause of deficits in performance of searching animals. Detection responses of individuals trained with high rates of target stimulus presentation tend to extinguish when moved to a new context where their rate of...

  3. The effects of the light regimen imposed during lactation on the performance and behaviour of sows and their litters

    Contributor(s):: Simitzis, P. E., Veis, D., Demiris, N., Charismiadou, M. A., Ayoutanti, A., Deligeorgis, S. G.

  4. Design and methodology of choice feeding experiments with ruminant livestock

    Contributor(s):: Meier, J. S., Kreuzer, M., Marquardt, S.

  5. Detecting autocorrelation problems from GPS collar data in livestock studies

    Contributor(s):: Perotto-Baldivieso, H. L., Cooper, S. M., Cibils, A. F., Figueroa-Pagan, M., Udaeta, K., Black-Rubio, C. M.

  6. Differing results for motivation tests and measures of resource use: the value of environmental enrichment to gestating sows housed in stalls

    Contributor(s):: Elmore, M. R. P., Garner, J. P., Johnson, A. K., Kirkden, R. D., Patterson-Kane, E. G., Richert, B. T., Pajor, E. A.

  7. 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):: Jones, H. A. C., Noble, C., Damsgard, B., Pearce, G. P.

  8. Experience with a variety of feed colours reduces feed neophobia in the turkey

    Contributor(s):: Lecuelle, S., Leterrier, C., Chagneau, A. M., Laviron, F., Lescoat, P., Bastianelli, D., Bertin, A., Bouvarel, I.

    When exposed to a new feed, farm birds are commonly reluctant to eat this feed. This phenomenon, called feed neophobia, could be reduced by exposing young animals to a variety of novel feeds. We investigated whether previous experience with a variety of feed colours could reduce food neophobia in...

  9. Feeding enrichment in an opportunistic carnivore: the red fox

    Contributor(s):: Kistler, C., Hegglin, D., Wurbel, H., Konig, B.

    In captive carnivores, species-specific behaviour is often restricted by inadequate feeding regimens. Feeding live prey is not feasible in most places and food delivery is often highly predictable in space and time which is considerably different from the situation in the wild. As a result,...

  10. A review of pain assessment techniques and pharmacological approaches to pain relief after bovine castration: practical implications for cattle production within the United States. (Special Issue: Pain in farm animals.)

    Contributor(s):: Coetzee, J. F.

    Castration of male calves destined for beef production is a common livestock management practice in the United States amounting to approximately 7 million procedures per year. Recently there has been renewed interest in identifying methods to reduce pain associated with dehorning and castration....

  11. The effect of frequency and duration of training sessions on acquisition and long-term memory in dogs

    Contributor(s):: Demant, H., Ladewig, J., Balsby, T. J. S., Dabelsteen, T.

    Most domestic dogs are subjected to some kind of obedience training, often on a frequent basis, but the question of how often and for how long a dog should be trained has not been fully investigated. Optimizing the training as much as possible is not only an advantage in the training of working...

  12. Are pigs sensitive to variability in food rewards?

    Contributor(s):: Jonge, F. H. de, Ooms, M., Kuurman, W. W., Maes, J. H. R., Spruijt, B. M.

    Pigs are non-specialist feeders with high capacities to adapt their diets within wide limits to prevailing and unpredictable conditions. Under husbandry conditions however, pigs are usually fed under extremely predictable conditions, i.e. with highly uniform and standardized diets, ad libitum or...

  13. Negative versus positive reinforcement: an evaluation of training strategies for rehabilitated horses

    Contributor(s):: Innes, L., McBride, S.

    Rescued equids are often exposed to rehabilitation and training (or retraining) programmes to improve their physical and psychological well-being as well as to facilitate the re-homing process. Training uses either positive or negative reinforcement learning procedures and it is considered here...

  14. Potential behavioural indicators of post-operative pain in male laboratory rabbits following abdominal surgery

    Contributor(s):: Farnworth, M. J., Walker, J. K., Schweizer, K. A., Chuang, C. L., Guild, S. J., Barrett, C. J., Leach, M. C., Waran, N. K.

    This study aimed to identify behaviours that could be used to assess post-operative pain and analgesic efficacy in male rabbits. In consideration of the 'Three Rs', behavioural data were collected on seven male New Zealand White rabbits in an ethically approved experiment requiring abdominal...

  15. The effect of three different items of cage furniture on the behaviour of male C57BL/6J mice in the plus-maze test

    Contributor(s):: Okva, K., Nevalainen, T., Mauranen, K., Pokk, P.

    The aim of this study was to assess the effects of specific regimens of enrichment on the behaviour of C57BL/6J mice in the elevated plus-maze test (EPM). A total of 192 male C57BL/6J mice were allocated randomly to 32 cages. Three different items of cage furniture (CF) made of aspen - a mouse...