You are here: Home / Tags / Glucocorticoids / Resources

Tags: Glucocorticoids

Resources (61-77 of 77)

  1. The welfare of adult pigs: the effects of five housing treatments on behaviour, plasma corticosteroids and injuries

    Contributor(s):: Barnett, J. L., Cronin, G. M., Winfield, C. G., Dewar, A. M.

    The effects of 5 housing treatments (tethered, pairs, or a group indoors, in a yard or in a paddock) on the behaviour, physiology (stress physiology and blood metabolites), health (injury status) and production (food eaten and oestrous expression) of 30 non-pregnant adult female pigs were...

  2. The effects of genotype on physiological and behavioural responses related to the welfare of pregnant pigs

    Contributor(s):: Barnett, J. L., Hemsworth, P. H., Cronin, G. M., Winfield, C. G., McCallum, T. H., Newman, E. A.

    Plasma free-corticosteroid concentrations, aggressive behaviour and levels of motivation to interact socially and explore a novel arena were observed in an experiment to examine whether differences previously observed between pigs in neck-tethers and groups are shown by pigs of different...

  3. The effects of design of individual stalls on the social behaviour and physiological responses related to the welfare of pregnant pigs

    Contributor(s):: Barnett, J. L., Hemsworth, P. H., Winfield, C. G.

    Plasma free-corticosteroid concentrations, aggressive behaviour and levels of motivation to interact socially and explore a novel environment were observed to test the hypothesis that the chronic stress response previously observed in tether-housed pigs may have been due to unresolved aggression...

  4. Effects of social environment on welfare status and sexual behaviour of female pigs. I. Effects of group size

    Contributor(s):: Barnett, J. L., Hemsworth, P. H., Winfield, C. G., Hansen, C.

    The study examined the effects of housing 24 adult female pigs in groups of 2, 4 or 8 with a space allowance of 1.4msuperscript 2 per pig on welfare status, as indicated by plasma free-corticosteroid concentrations and behaviour patterns, and sexual behaviour. Housing gilts in pairs resulted in...

  5. Rapid shaping of behaviour associated with high urinary cortisol in domestic dogs

    Contributor(s):: Blackwell, E. J., Bodnariu, A., Tyson, J., Bradshaw, J. W. S., Casey, R. A.

    The occurrence of stress has widely been associated with impairments in learning abilities in animals, although the influence of stress appears to differ with the complexity of tasks. Previous research has suggested that some domestic dogs exhibit both physiological (elevated cortisol) and...

  6. Behavioral and physiological correlates of stress in laboratory cats

    Contributor(s):: Carlstead, K., Brown, J. L., Strawn, W.

    Sixteen domestic cats were used to investigate the pituitary-adrenal, pituitary-gonadal and behavioural consequences of an unpredictable handling and husbandry routine. After a 10-day baseline period of standard laboratory procedures, 8 cats ('stressed cats', STR) were subjected to a 21-day...

  7. The effect of orientation during trailer transport on heart rate, cortisol and balance in horses

    Contributor(s):: Clark, D. K., Friend, T. H., Dellmeier, G.

    Sixteen same-sex pairs of Quarter Horse and Quarter Horse-cross yearlings (8 pairs during each of 2 trials, 1 year apart) were transported for 17.8 +or- 0.52 min over a standard course with one horse facing in the direction of travel and one facing the opposite direction. The orientation of the...

  8. Behavioural and hormonal responses to acute surgical stress in sheep

    Contributor(s):: Fell, L. R., Shutt, D. A.

    A combination of plasma cortisol and beta -endorphin measurement, behavioural observation and estimation of aversion to humans (by an arena test) was used to assess the response to the modified mules operation in 6- to 7-month-old Merino wethers. The operation involves the surgical removal of...

  9. Euthanasia methods, corticosterone and haematocrit levels in Xenopus laevis : evidence for differences in stress?

    Contributor(s):: Archard, G. A., Goldsmith, A. R.

    Amphibians, like other vertebrates, respond to acute stressors by releasing glucocorticoid steroid hormones that mediate physiological and behavioural responses to stress. Measurement of stress hormones provides a potential means to improve the welfare of laboratory animals. For example,...

  10. Conservation and animal welfare issues arising from forestry practices. (Special Issue: Conservation and animal welfare.)

    Contributor(s):: Blumstein, D. T.

    Forestry practices may directly kill animals as well as destroy and fragment their habitat. Even without habitat destruction, logging and its associated forest management practices (which include road building, re-forestation, and often increased recreational use) create noise, frighten animals,...

  11. Brain measures which tell us about animal welfare

    Contributor(s):: Broom, D. M., Zanella, A. J.

    Studies of the brain inform us about the cognitive abilities of animals and hence, affect the extent to which animals of that species are respected. However, they can also tell us how an individual is likely to be perceiving, attending to, evaluating, coping with, enjoying, or disturbed by its...

  12. Reactions of cattle to head-restraint at stunning: a practical dilemma

    Contributor(s):: Ewbank, R., Parker, M. J., Mason, C. W.

    The behavioural reactions and blood cortisol levels of cattle stunned using a penetrating captive-bolt pistol whilst standing free in a stunning box were compared with those obtained from cattle similarly stunned but with their heads held in a hydraulically operated chin-lift type of head...

  13. Faecal glucocorticoid level is not correlated with stereotypic pacing in two captive margays ( Leopardus wiedii )

    Contributor(s):: Gusset, M.

    The 'coping hypothesis' of stereotypic behaviour - that stereotypies are performed as a means of helping the animal to cope with its environment by reducing stress - was tested using two adult female margays (Leopardus wiedii), an endangered neotropical small cat species. Within-individual and...

  14. Effect of group housing and oral corticosterone administration on weight gain and locomotor development in neonatal rats

    Contributor(s):: Young, L. A., Pavlovska-Teglia, G., Stodulski, G., Hau, J.

  15. Influence of indoor-cat group size and dominance rank on urinary cortisol levels

    Contributor(s):: Lichtsteiner, M., Turner, D. C.

    Domestic cats (Felis silvestris catus) are often housed indoors both singly and in groups. However, there is a lack of studies dealing with cat-cat relationships, group composition and effects of environmental parameters on the well-being of privately-owned cats. One way to index the effects of...

  16. Stress hormone responses of sheep to food and water deprivation at high and low ambient temperatures

    Contributor(s):: Parrott, R. F., Lloyd, D. M., Goode, J. A.

    Eight Clun Forest wethers were used to study the effects of feed and/or water deprivation at different ambient temperatures (7 or 35 degrees C) on stress hormone release. Blood samples were taken from catheterized animals at the start and at 6 h intervals during 48 h tests in an environmental...

  17. Environmental enrichment for maned wolves ( Chrysocyon brachyurus ): group and individual effects

    Contributor(s):: Vasconcellos, A. S., Guimaraes, M. A. B. V., Oliveira, C. A., Pizzutto, C. S., Ades, C.

    Procedures that increase foraging and exploratory behaviours are generally accepted as effective at improving welfare and reducing stereotypies in captive animals. To determine the effect of food and toy enrichment on the behaviour and hormonal levels of maned wolves (Chrysocyon brachyurus), 11...