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  1. A case control study of on-farm risk factors for tail biting in pigs

    Contributor(s):: Moinard, C., Mendl, M., Nicol, C. J., Green, L. E.

  2. A study of cortisol and beta-endorphin levels in stereotypic and normal Thoroughbreds

    Contributor(s):: Pell, S. M., McGreevy, P. D.

    Plasma and salivary cortisol levels were measured in stereotypic (n=46) and normal horses (n=46). No significant differences were found between the 2 groups of horses. The correlation between plasma and salivary cortisol concentrations of individual horses (n=66) was also examined. A significant...

  3. A survey of dog ownership in suburban Australia - conditions and behaviour problems

    Contributor(s):: Kobelt, A. J., Hemsworth, P. H., Barnett, J. L., Coleman, G. J.

    There has been an increasing emphasis in Australia on confining dogs to owner's properties (household backyards) as a solution to problems of dog aggression. Therefore, there is a need to determine the social and physical conditions that make up the dog's backyard environment and how these...

  4. All a mother's fault? Transmission of stereotypy in striped mice Rhabdomys

    Contributor(s):: Jones, M., Lierop, M. van, Pillay, N.

    Environmentally induced stereotypy is the most common abnormal behaviour in captive animals. However, not all animals housed in identically impoverished environments develop stereotypy, possibly because of differences in genetic predisposition. To investigate the transmission of stereotypy in...

  5. Applied animal behaviour science. (Special issue: Suckling)

    Contributor(s):: Lidfors, L., Svennersten-Sjaunja, K., Redbo, I.

    This supplement contains articles that focus on behavioural and physiological aspects of suckling and/or sucking in ruminants. Abnormal sucking behaviour, particularly cross-sucking and non-nutritive sucking, in calves are presented; and the effects of milk flow and milk volume, the presence of a...

  6. Behaviour patterns and time course of activity in dogs with separation problems

    Contributor(s):: Lund, J. D., Jorgensen, M. C.

    An analysis of video-recordings of 20 dogs with separation problems suggested that separation behaviour may be divided into; exploratory behaviour, object play including elements of predatory behaviour, destructive behaviour and vocalization. Elimination behaviour was only found in one case....

  7. Behavioural and physiological responses of horses to initial training: the comparison between pastured versus stalled horses

    Contributor(s):: Rivera, E., Benjamin, S., Nielsen, B., Shelle, J., Zanella, A. J.

    Horses kept in stalls are deprived of opportunities for social interactions, and the performance of natural behaviour is limited. Inadequate environmental conditions may compromise behavioural development. Initial training is a complex process and it is likely that the responses of horses may be...

  8. Behavioural effects of environmental enrichment for individually caged rabbits

    Contributor(s):: Lidfors, L.

    The behavioural effects of providing 60 male New Zealand laboratory rabbits with one of four objects in their individual cages as environmental enrichment were investigated. The rabbits were assigned to one of 5 treatments by a random procedure; hay in a water bottle, grass-cubes, two gnawing...

  9. Canine fears and phobias; a regime for treatment without recourse to drugs

    Contributor(s):: Rogerson, J.

    From a study of 247 (102 male dogs and 145 bitches) case histories presenting varying degrees of fear and phobia, both generalised and specific, it has been possible to define standard patterns of behaviour. This was done on the basis of severity of the fear, the type of fear response displayed...

  10. Cross-sucking by dairy calves may become a habit or reflect characteristics of individual calves more than milk allowance or weaning

    Contributor(s):: Passille, A. M. de, Borderas, F., Rushen, J.

    To examine the effects of milk allowance and weaning age on cross-sucking, 45 dairy calves were housed in groups of nine and fed milk and grain-based starter feed from automated feeders and allocated to three treatment groups: (A) Low-Milk Early-Weaned (fed 6 L/d of milk until weaned at 47 d of...

  11. Development of stereotypies and polydipsia in wild caught bank voles ( Clethrionomys glareolus ) and their laboratory-bred offspring. Is polydipsia a symptom of diabetes mellitus?

    Contributor(s):: Schoenecker, B., Heller, K. E., Freimanis, T.

    The development of stereotypies and polydipsia was studied in wild caught bank voles (P: n=92) and their laboratory-bred offspring (F1: n=248). All animals were kept isolated in barren cages in the laboratory. In the P generation, no individuals developed stereotypies, but 22% developed...

  12. Differences in background and outcome of three behavior problems of dogs

    Contributor(s):: Takeuchi, Y., Ogata, N., Houpt, K. A., Scarlett, J. M.

    In order to characterize the three major behaviour problems, aggression toward owners, aggression toward strangers and separation anxiety, backgrounds of dogs and general outcomes of the behavioural treatments were analyzed retrospectively. There were 169 cases of aggression toward owners, 84...

  13. Divergent selection on feather pecking behaviour in laying hens ( Gallus gallus domesticus )

    Contributor(s):: Kjaer, J. B., Sorensen, P., Su, G.

    A selection experiment was initiated in 1996 in which selection for (HP line) and against (LP line) feather pecking was performed. The foundation stock was a White Leghorn layer strain established in 1970 and maintained since then as a random bred control line at the Institute. Six hatches were...

  14. Do the stereotypies of pigs, chickens and mink reflect adaptive species differences in the control of foraging?

    Contributor(s):: Mason, G., Mendl, M.

    Species differences in food-related stereotypies and natural foraging behaviour are discussed, and evolutionary explanations for these species differences, and reasons why apparent species differences in stereotypy may be artefacts of husbandry are postulated.

  15. Dustbathing and feather pecking in domestic chickens reared with and without access to sand

    Contributor(s):: Norgaard-Nielsen, G.

    Eight groups of 10 female white Leghorn chicks were kept in wire floor cages from 1 day old. From 2 days of age four of the groups had continuous access to a wooden tray with dark dry sand, while the other groups had a wooden frame of the same size but without sand. Low intensity light (10 lux)...

  16. Early rearing interacts with temperament and housing to influence the risk for motor stereotypy in rhesus monkeys ( Macaca mulatta )

    Contributor(s):: Vandeleest, J. J., McCowan, B., Capitanio, J. P.

    Laboratory and zoo housed non-human primates sometimes exhibit abnormal behaviors that are thought to reflect reduced well-being. Previous research attempted to identify risk factors to aid in the prevention and treatment of these behaviors, and focused on demographic (e.g. sex or age) and...

  17. Factors associated with the prevalence of stereotypic behaviour amongst Thoroughbred horses passing through auctioneer sales

    Contributor(s):: Mills, D. S., Alston, R. D., Rogers, V., Longford, N. T.

    The objective of this study was to evaluate whether sex, age and/or coat colour were associated with the occurrence of stereotypic behaviour in the horse and to assess whether the occurrence of one type of stereotypy in an individual was associated with the occurrence of another specific type of...

  18. Feather eating in layer pullets and its possible role in the aetiology of feather pecking damage

    Contributor(s):: McKeegan, D. E. F., Savory, C. J.

    Feather eating and its possible relationship with damaging pecking was examined in 144 pen-housed ISA Brown layer pullets. Collection and measurement of loose feathers in sample plots on 12 pen floors (feather were characterized as 'short' or 'long'), and examination of faecal droppings (eaten...

  19. Geophagia in horses: a short note on 13 cases

    Contributor(s):: McGreevy, P. D., Hawson, L. A., Habermann, T. C., Cattle, S. R.

    Recorded in several species including humans, geophagia or soil eating has been observed in both wild and domesticated horses and has generally been regarded as an indication of nutritional deficiency or "boredom". Studies of soils consumed by different species have led to several theories as to...

  20. Inappropriate behavior of potential guide dogs for the blind and coping behavior of human raisers

    Contributor(s):: Koda, N.

    Inappropriate behaviour of potential guide dogs (puppies; n=11) for the blind and coping behaviour of their adult female raisers (puppy walkers: PWs) were videotaped in their play situation at home from when the puppies were 2-11 or 12 months of age. The frequency of inappropriate behaviour...