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  1. Psycho-Behavioural Changes in Dogs Treated with Corticosteroids: A Clinical Behaviour Perspective

    Full-text: Available

    | Contributor(s):: Notari, Lorella, Kirton, Roxane, Mills, Daniel S.

    Arousal and distress are often important factors in problematic behaviours, and endogenous corticosteroids are important mediators in the associated stress responses. Exogenous corticosteroid treatments have been reported to change behaviour in human patients and laboratory animals, with...

  2. The development of fault bars in domestic chickens (Gallus gallus domesticus) increases with acute stressors and individual propensity: implications for animal welfare

    | Contributor(s):: Arrazola, A., Torrey, S.

  3. The effect of cage size on stress levels in captive green anole (Anolis carolinensis)

    | Contributor(s):: Borgmans, G., Palme, R., Sannen, A., Vervaecke, H., Van Damme, R.

  4. A preliminary approach on the stress assessment through harmless procedures in farmed seabream (Sparus aurata)

    | Contributor(s):: Herrera, M., Lopez, J., Herves, A.

  5. Hang on: an evaluation of the hemp rope as environmental enrichment in C57BL/6 mice

    | Contributor(s):: Gjendal, K., Sorensen, D. B., Kiersgaard, M. K., Ottesen, J. L.

  6. The effect of environmental provisioning on stress levels in captive green anole (Anolis carolinensis)

    | Contributor(s):: Borgmans, G., Palme, R., Sannen, A., Vervaecke, H., Van Damme, R.

  7. Hair cortisol concentrations in New Zealand white rabbits subjected to surgery

    | Contributor(s):: Peric, T., Comin, A., Corazzin, M., Montillo, M., Canavese, F., Stebel, M., Prandi, A.

  8. High and low feather pecking selection lines of laying hens differ in response to a judgment bias test

    | Contributor(s):: Pichová, Katarína, Košťál, Ľubor, de Haan, Tara I., van der Eijk, Jerine A. J., Rodenburg, T. Bas

  9. Individual and environmental factors associated with stereotypic behavior and fecal glucocorticoid metabolite levels in zoo housed polar bears

    | Contributor(s):: Shepherdson, David, Lewis, Karen D., Carlstead, Kathy, Bauman, Joan, Perrin, Nancy

    Polar bears (Ursus maritimus) are known to exhibit repetitive pacing behaviors, usually described as stereotypic, in zoo environments. However, little quantitative information exists about the prevalence of pacing in the zoo population. Similarly, large, multi-institutional studies conducted to...

  10. Variation in stress reactivity affects cage-induced stereotypies in female CD-1 (ICR) mice

    | Contributor(s):: Engel, Anna Katarina J., Gross, Alexandra N., Richter, S. Helene, Rommen, Jonas, Touma, Chadi, Würbel, Hanno

    Stereotypies in captive animals typically occur under conditions that are stressful for the animals, and there is some anecdotal evidence that stress levels during early stereotypy development predict later stereotypy levels. Based on this and on the involvement of stress in the behavioural...

  11. The impact of bedding volumes on laboratory mice

    | Contributor(s):: Freymann, Jennifer, Tsai, Ping-Ping, Stelzer, Helge, Hackbarth, Hansjoachim

    Environmental refinement is considered to be an improvement in housing conditions for laboratory animals. Previous preference tests showed that female BALB/c and C57BL/6 mice prefer deeper bedding in comparison to shallow bedding (Freymann et al., 2015). In order to give a comprehensive insight...

  12. Impact of tank background on the welfare of the African clawed frog, Xenopus laevis (Daudin)

    | Contributor(s):: Holmes, Andrew M., Emmans, Christopher J., Jones, Niall, Coleman, Robert, Smith, Tessa E., Hosie, Charlotte A.

    The captive environment of a laboratory animal can profoundly influence its welfare and the scientific validity of research produced. The African clawed frog (Xenopus laevis) is a common model organism, however current husbandry guidelines lack supporting quantitative evidence. The visual...

  13. Captive domesticated zebra finches (Taeniopygia guttata) have increased plasma corticosterone concentrations in the absence of bathing water

    | Contributor(s):: Krause, E. Tobias, Ruploh, Tim

    Keeping animals in captivity should always favour conditions that aim to improve their welfare with respect to species-specific requirements. For laboratory animals, the majority of welfare issues have been explored in rodents thus far, whereas the effect of housing conditions on the well-being...

  14. Effect of a partial cage dividing enrichment on aggression-associated parameters in group-housed male C57BL/6NCrl mice

    | Contributor(s):: Mertens, Sinja, Gass, Peter, Palme, Rupert, Hiebl, Bernhard, Chourbaji, Sabine

    Group-housing is highly important for social animals. Group-housing of male mice in captivity though often leads to aggression with partially disastrous consequences for the animals as well as for the quality of experimental data. In this study we investigated the effect of a novel...

  15. How environmental enrichment affects behavioral and glucocorticoid responses in captive blue-and-yellow macaws (Ara ararauna)

    | Contributor(s):: de Almeida, Ana Claudia, Palme, Rupert, Moreira, Nei

    Captive animals are susceptible to chronic stress due to restricted space, lack of hiding places, presence of visitors, or the lack of resources that promote physical and mental stimuli. In birds, chronic stress can promote stereotypes, self-mutilation, feather picking, chewing on cage bars and...

  16. Environmentally enriching American mink (Neovison vison) increases lymphoid organ weight and skeletal symmetry, and reveals differences between two sub-types of stereotypic behaviour

    | Contributor(s):: Diez-Leon, M., Bursian, S., Galicia, D., Napolitano, A., Palme, R., Mason, G.

    Enrichment studies for wild carnivores (e.g., in zoos) are often short-term, use enrichments of unknown motivational significance, and focus on glucocorticoids and stereotypic behaviour (SB), ignoring other stress-relevant variables. Our study assessed the broad behavioural and physiological...

  17. A case study: fecal corticosteroid and behavior as indicators of welfare during relocation of an Asian elephant

    | Contributor(s):: Laws, N., Ganswindt, A., Heistermann, M., Harris, M., Harris, S., Sherwin, C.

    This study was a preliminary investigation of an enzyme immunoassay for measuring fecal glucocorticoid metabolites in a male Asian elephant (Elephas maximus) by investigating changes in behavior and cortisol metabolite excretion associated with a putative stressful event. The study collected...

  18. Captive coyotes compared to their counterparts in the wild: does environmental enrichment help?

    | Contributor(s):: Shivik, J. A., Palmer, G. L., Gese, E. M., Osthaus, B.

    This article attempts to determine the effects of environment (captive or wild) and a simple form of environmental enrichment on the behavior and physiology of a nonhuman animal. Specifically, analyses first compared behavioral budgets and stereotypic behavior of captive coyotes (Canis latrans)...

  19. Effect of breed, cage type, and reproductive phase on fecal corticosterone levels in doe rabbits

    | Contributor(s):: Prola, L., Cornale, P., Renna, M., Macchi, E., Perona, G., Mimosi, A.

    Fecal corticosterone concentration (FCC) is increasingly being used as a noninvasive indicator of stress in assessment of nonhuman animal welfare. The aim of this study was to evaluate effects of breed, cage type, reproductive phase, and their interactions on FCC levels in doe rabbits. A total of...

  20. The effects of environmental control on cognition in rats ( Rattus norvegicus )

    | Contributor(s):: Alliger, A. A., Moller, P.

    The aim of this study was to allow nonhuman animals to control their environment using operant conditioning procedures and to assess the effect of control on cognitive tasks. The study tested 4 predictions: (a) rats (Rattus norvegicus) will control a light stimulus; (b) animals will exhibit...