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...
The effects of social interaction and environmental enrichment on the space use, behaviour and stress of owned housecats facing a novel environment
Contributor(s):: Rehnberg, L. K., Robert, K. A., Watson, S. J., Peters, R. A.
Every day, millions of domestic cats are held temporarily in captive environments, such as boarding catteries and rescue shelters. Being in confinement can potentially invoke high levels of stress for these animals. Therefore, there is a need to develop appropriate strategies to reduce these...
Effects of visual contact with zoo visitors on black-capped capuchin welfare
Contributor(s):: Sherwen, S. L., Harvey, T. J., Magrath, M. J. L., Butler, K. L., Fanson, K. V., Hemsworth, P. H.
Previous research has suggested that the presence of zoo visitors may be stressful for various primate species, and visual contact with visitors may be the sensory stimuli that mediate visitor effects. We studied a group of black-capped capuchins, Cebus apella, in a controlled experiment,...
Events around weaning in semi-feral and stable-reared Konik polski foals: evaluation of short-term physiological and behavioural responses
Contributor(s):: Gorecka-Bruzda, A., Suwala, M., Palme, R., Jaworski, Z., Jastrzebska, E., Boron, M., Jezierski, T.
The annual weaning, stabling and subsequent sale of semi-feral Konik polski foals born in forest reserves ensure a stable population of free-roaming Konik polski horses. However, welfare concerns regarding the maternal and herd separation of young horses, manipulation by humans, transportation...
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...
Fecal concentrations of cortisol, testosterone, and progesterone in cotton-top tamarins housed in different zoological parks: relationships among physiological data, environmental conditions, and behavioral patterns
Contributor(s):: Fontani, S., Vaglio, S., Beghelli, V., Mattioli, M., Bacci, S., Accorsi, P. A.
The aim of this investigation was to study the welfare of 3 captive groups of cotton-top tamarins housed in different zoological parks. Ethological observations were conducted during 1 year. In addition, fecal samples were collected and the concentrations of glucocorticoids, androgens, and...
Frustrated appetitive foraging behavior, stereotypic pacing, and fecal glucocorticoid levels in snow leopards ( Uncia uncia ) in the Zurich Zoo
Contributor(s):: Burgener, N., Gusset, M., Schmid, H.
This study hypothesized that permanently frustrated, appetitive-foraging behavior caused the stereotypic pacing regularly observed in captive carnivores. Using 2 adult female snow leopards (U), solitarily housed in the Zurich Zoo, the study tested this hypothesis experimentally with a novel...
Using fecal hormonal and behavioral analyses to evaluate the introduction of two sable antelope at Lincoln Park Zoo
Contributor(s):: Loeding, E., Thomas, J., Bernier, D., Santymire, R.
Introductions of sable antelope (Hippotragus niger) can be difficult due to the potential ensuing aggression compounded by their large horns. The goal was to use hormonal assays and behavioral analyses to evaluate the success of an introduction of 2 adult females at Lincoln Park Zoo. The...
Hormonal stress response of laboratory mice to conventional and minimally invasive bleeding techniques
Contributor(s):: Voigt, C. C., Klockner, P., Touma, C., Neuschl, C., Brockmann, G., Goritz, F., Palme, R., Thomsen, R.
Providing 'get-away bunks' and other enrichments to primiparous adult female mink improves their reproductive productivity
Contributor(s):: Buob, M., Meagher, R., Dawson, L., Palme, R., Haley, D., Mason, G.
Environmental enrichment exerts anxiolytic effects in the Indian field mouse ( Mus booduga)
Contributor(s):: Varman, D. R., Ganapathy, Marimuthu, Rajan, K. E.
Influence of housing on weanling horse behaviour and subsequent welfare
Contributor(s):: Heleski, C. R., Shelle, A. C., Nielsen, B. D., Zanella, A. J.
Weaning foals marks a stressful event in horses' lives. Limited research exists regarding different housing methods post-weaning and the long-term implications on horse behaviour and welfare. The purpose of this study was to monitor behaviour and physiological stress markers in horses weaned...
Neonatal handling of Amazon parrots alters the stress response and immune function
Contributor(s):: Collette, J. C., Millam, J. R., Klasing, K. C., Wakenell, P. S.
The influence of neonatal handling on behaviour and immune function was assessed in Orange-winged Amazon parrots (Amazona amazonica). Chicks (n=11) were gently handled daily from 25 days of age until 38 days post-fledging, while control chicks (n=9) were not handled. At 10 days post-fledging...
Pain and stress in crustaceans? (Special Issue: Animal suffering and welfare.)
Contributor(s):: Elwood, R. W., Barr, S., Patterson, L.
We consider evidence that crustaceans might experience pain and stress in ways that are analogous to those of vertebrates. Various criteria are applied that might indicate a potential for pain experience: (1) a suitable central nervous system and receptors, (2) avoidance learning, (3) protective...
De-arousal properties of stereotyped behaviour: evidence from pituitary-adrenal correlates in pigs
Contributor(s):: Dantzer, R., Mormede, P.
Behavioural and pituitary--adrenal responses of food-deprived pigs, submitted to an intermittent food delivery schedule repeated over several weeks, were investigated. All animals reliably displayed stereotyped activites, in the form of repeated chain pulling, during the interval between food...
Effect of differential rearing on the behavioral and adrenocortical response of lambs to a novel environment
Contributor(s):: Moberg, G. P., Wood, V. A.
When lambs (14 days old) were placed in an open space, those reared in isolation were more withdrawn (were slow to begin moving, vocalized infrequently and avoided new objects) than lambs reared with dams or with other lambs. The difference in response was less pronounced when all lambs were...
Effects of chronic stress on some blood parameters in the pig
Contributor(s):: Barnett, J. L., Hemsworth, P. H., Hand, A. M.
Plasma samples from juvenile female pigs exhibiting a chronic stress response, evidenced by higher free corticosteroid concentrations, changes in behaviour and reduced growth rates, were analysed for plasma concentrations of total protein, albumin, glucose, urea and cholesterol. Chronic stress...
Hormonal influences on conditioned fear in pigs
Social behaviour and adrenal cortical activity in heifers
Contributor(s):: Adeyemo, O., Heath, E.
Heifers of the German Brown Swiss, Holstein and White Fulani cattle were observed before, during and after a training. Individual and social behaviour were observed while the animals were under free housing in the pen, grazing in the paddock and while filing through the crush and the passage...
Repeated transport and isolation during pregnancy in ewes: differential effects on emotional reactivity and weight of their offspring
Contributor(s):: Roussel-Huchette, S., Hemsworth, P. H., Boissy, A., Duvaux-Ponter, C.
The aim of this experiment was to study the effects of different stressors applied to pregnant ewes during the last third of pregnancy on the emotional reactivity of their lambs. Forty ewes were subjected twice a week during the last 6 weeks of gestation to 10 sessions of isolation (ISOL, n=20)...