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  1. Scientists and Dutch pig farmers in dialogue about tail biting: unravelling the mechanism of multi-stakeholder learning

    Contributor(s):: Benard, M., Schuitmaker, T. J., Buning, T. de C.

    Pig farmers and scientists appear to have different perspectives and underlying framing on animal welfare issues as tail biting and natural behaviour of pigs. Literature proposes a joint learning process in which a shared vision is developed. Using two different settings, a symposium and...

  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. Agonistic behaviour and feather pecking in single-sexed and mixed groups of laying hens

    Contributor(s):: Oden, K., Vestergaard, K. S., Algers, B.

    The effects of the presence of males on female aggressiveness and feather pecking in groups of about 500 laying hens housed in an aviary system were studied. In all, 10 groups of ISA Brown laying hens were observed at 21, 35, 45 and 55 weeks of age on 2 farms, during 2 years. In the second year,...

  4. Determination of the causes of infanticide in capybara ( Hydrochaeris hydrochaeris ) groups in captivity

    Contributor(s):: Nogueira, S. S. da C., Nogueira-Filho, S. L. G., Otta, E., Dias, C. T. dos S., Carvalho, A. de

    Sixty-four capybara births were examined for correlation of offspring deaths with inexperienced primiparous females, parturition in a maternity pen (isolated) or reproduction pen (in group), or familiarity among group members. The results showed that infanticide was associated with reproductive...

  5. 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...

  6. The effects of environmental enrichment and intermittent lighting on the behaviour and welfare of male domestic turkeys

    Contributor(s):: Sherwin, C. M., Lewis, P. D., Perry, G. C.

    The responses to 4 treatments (2 rooms/treatment) of 8 groups of 50 non-beak trimmed, male domestic turkeys was investigated from day-of hatching to 21 weeks of age. One treatment, 'Control' birds, were reared under conditions close to commercial rearing; the other treatments were Enriched (many...

  7. The vocal expression of feeding motivation and frustration in the domestic laying hen, Gallus gallus domesticus

    Contributor(s):: Zimmerman, P. H., Koene, P., Hooff, J. A. R. A. M. van

    Thwarting of feeding behaviour in the laying hen results in an increase in stereotyped pacing, displacement preening, and the gakel-call. These behaviours therefore reflect the frustration arousal caused by the thwarting of feeding behaviour. This raises the question whether the level of...

  8. Behavior of picketed circus elephants

    Contributor(s):: Friend, T. H.

    The behaviour of 14 female Asian (Elephas maximus) and 3 female African (Loxodonta africana) elephants who performed 2 shows each day with a circus that travelled to a new location (40 to 250 km from the previous day's lot) daily, was studied. When not performing or working, the elephants were...

  9. Day-time time budgets of pregnant mares housed in tie stalls: a comparison of draft versus light mares

    Contributor(s):: Flannigan, G., Stookey, J. M.

    Day-time (08.30-05.30 h) time budgets were generated from 55 light and 55 draft late pregnancy mares housed in tie stalls from 10 pregnant mares' urine (PMU) farms using continuous video recording. Equal numbers of light and draft mares were filmed on each farm during the months of February and...

  10. Effects of early weaning and housing conditions on the development of stereotypies in farmed mink

    Contributor(s):: Jeppesen, L. L., Heller, K. E., Dalsgaard, T.

    141 female mink pups were weaned at 6, 8 or 10 weeks of age and subjected to two different housing conditions. They were either kept together with a single male sibling in traditional mink cages (30 x 45 x 90 cm) or housed socially with all litter-mates in an alternative system consisting of...

  11. Phenotyping stereotypic behaviour: collective variables, range of variation and predictability

    Contributor(s):: Golani, I., Kafkafi, N., Drai, D.

  12. The type of operant response affects the slope of the demand curve for food in mink

    Contributor(s):: Hansen, S. W., Jensen, M. B., Pedersen, L. J., Munksgaard, L., Ladewig, J., Matthews, L.

    The behavioural priorities of farm animals may be quantified by demand functions generated by use of operant conditioning techniques. However, there are several aspects of this method that still need to be investigated in more detail. The aim of this study was to investigate the effect of operant...

  13. Use of perches and nestboxes by laying hens in relation to social status, based on examination of consistency of ranking orders and frequency of interaction

    Contributor(s):: Cordiner, L. S., Savory, C. J.

    Four groups of 15-19 adult ISA Brown hens were studied in pens to assess the relationship between social status and use of perches and nestboxes. This was to test the hypothesis that subordinate hens use these resources more by day, for avoiding dominants, but that dominants use perches more at...

  14. Behaviour and abomasal damage in individual veal calves

    Contributor(s):: Wiepkema, P. R., Hellemond, K. K. van, Roessingh, P., Romberg, H.

    The relationship between abomasal damage and individual behavioural patterns of 61 crated veal calves (53 male and 8 female) was analysed. The calves were bucket-fed twice a day with milk replacer only. At slaughter (age 22-24 weeks), 67% of all calves showed abomasal erosions, ulcers, scars or...

  15. A possible relationship between the flinch, step and kick response and milk yield in lactating cows

    Contributor(s):: Willis, G. L.

    The av. milk yield and incidence of flinching, kicking and stepping during teatcup placement and removal (FSK response) were both higher among 10 randomly selected Friesian X Jersey cows in periods of 5 and 4 days when they were milked by one herdsman than in 5 days when they were milked by...

  16. A review of the problem of milk-sucking in dairy cows

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

  17. The development of feather pecking and cannibalism in chicks

    Contributor(s):: Cuthbertson, G. J.

  18. Applied ethology - it's task and limits in veterinary practice

    Contributor(s):: Sambraus, H. H.

  19. Behavior problems of companion birds

    Contributor(s):: Reisner, I. R.

  20. Ear-tag chewing, ear rubbing and ear traumas in a small group of gilts after having electronic ear tags attached

    Contributor(s):: Sherwin, C. M.

    To facilitate field trials of a prototype computerised sow feeder, electronic and conventional ear tags were attached to a group of 7 gilts. Observations were made on ear-tag chewing, ear rubbing and traumas to ears during the following 16 days. The electronic ear tags were chewed significantly...