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  1. Effects of guest feeding programs on captive giraffe behavior

    Contributor(s):: Orban, D. A., Siegford, J. M., Snider, R. J.

  2. Is your dog empathic? Developing a Dog Emotional Reactivity Survey

    Contributor(s):: Szantho, F., Miklosi, A., Kubinyi, E.

  3. Flat Feline Faces: Is Brachycephaly Associated with Respiratory Abnormalities in the Domestic Cat (Felis catus)?

    Contributor(s):: Farnworth, M. J., Chen, R., Packer, R. M., Caney, S. M., Gunn-Moore, D. A.

  4. Physiological and Behavioral Responses of Horses to Wither Scratching and Patting the Neck When Under Saddle

    Contributor(s):: Thorbergson, Z. W., Nielsen, S. G., Beaulieu, R. J., Doyle, R. E.

  5. Generalize or personalize--do dogs transfer an acquired rule to novel situations and persons?

    Contributor(s):: Hertel, A., Kaminski, J., Tomasello, M.

  6. Dogs' social referencing towards owners and strangers.

    Contributor(s):: Merola, Isabella, Prato-Previde, Emanuela, Marshall-Pescini, Sarah

  7. Differences in open field behavior between heterozygous and homozygous negative gilts for the RYR(1) gene

    Contributor(s):: Fabrega, E., Diestre, A., Font, J., Carrion, D., Velarde, A., Ruiz-de-la-Torre, J. L., Manteca, X.

    A test widely used to assess fear and novelty responses in domestic species is the open field. The aim of this study was to investigate the effect of RYR(1) genotype on open field behavior in growing pigs. The study subjected 15 heterozygous (Nn) and 15 RYR(1)-free (NN) gilts of 19 weeks of age...

  8. Interactions between profit and welfare on extensive sheep farms

    Contributor(s):: Stott, A. W., Ahmadi, B. V., Dwyer, C. M., Kupiec, B., Morgan-Davies, C., Milne, C. E., Ringrose, S., Goddard, P., Phillips, K., Waterhouse, A.

  9. Personal endotoxin exposure in a panel study of school children with asthma

    Contributor(s):: Delfino, R. J., Staimer, N., Tjoa, T.

  10. The development of feather pecking behaviour and targeting of pecking in chicks from a high and low feather pecking line of laying hens

    Contributor(s):: Hierden, Y. M. van, Korte, S. M., Ruesink, E. W., Reenen, C. G. van, Engel, B., Koolhaas, J. M., Blokhuis, H. J.

    Large individual differences between adult laying hens in their propensity for feather pecking are known to exist. However, not much research has been carried out into the individual differences concerning the development of feather pecking behaviour. The purpose of this study was to investigate...

  11. The effect of sire line on the feeding patterns of grow-finish pigs

    Contributor(s):: Augspurger, N. R., Ellis, M., Hamilton, D. N., Wolter, B. F., Beverly, J. L., Wilson, E. R.

    Forty-eight growing-finishing pigs were used in a split-plot design with a 2x2 factorial arrangement of treatments to investigate the effect of sire line and sex (castrates and gilts) on feeding patterns. Sire line A was of Pietrain ancestry and sire line B was a synthetic line that included...

  12. Sexual responses of pullets to selection for mating behavior in male chickens

    Contributor(s):: Siegel, P. B., Cook, W. T.

    Bidirectional selection for number of completed matings in cockerels resulted in lines differing in male sexual behaviour. No correlated responses, however, were observed in the sexual behaviour of S12, S13 and S14 generation pullets. The sexual behaviour of females was measured as courtings...

  13. Selection against stereotypic behaviour may have contradictory consequences for the welfare of farm mink ( Mustela vison )

    Contributor(s):: Svendsen, P. M., Hansen, B. K., Malmkvist, J., Hansen, S. W., Palme, R., Jeppesen, L. L.

    The present study aimed to examine if divergent selection for stereotypic behaviour in mink influences the welfare of the animals. Two breeding lines were used, a high stereotyping line (HSL, N=139) and a low stereotyping line (LSL, N=132). Their welfare was assessed on the basis of...

  14. Possible influence of neighbours on stereotypic behaviour in horses

    Contributor(s):: Nagy, K., Schrott, A., Kabai, P.

    Revealing risk factors of abnormal stereotypic behaviour (ASB) in horses can help in the design of protective measures. Previous epidemiological studies indicate that social isolation, housing, management conditions, and feeding regime have a strong effect on developing ASB. The common belief...

  15. Effects of growth hormone transgenes on the behavior and welfare of aquacultured fishes: a review identifying research needs. (Special issue: Fish Behaviour and Welfare.)

    Contributor(s):: Hallerman, E. M., McLean, E., Fleming, I. A.

    Expression of a growth hormone (GH) transgene can achieve dramatic impacts upon the performance of aquaculture stocks, for example, increasing the growth rate of coho salmon 11-fold. With the prospect of improved production efficiency, some aquaculturists want to produce transgenic fish...

  16. Food soiling and diet discrimination of mouse lines divergently selected for response to a nutritional toxicosis

    Contributor(s):: Hohenboken, W. D.

    Mouse lines were selected for eight generations for resistance (R) versus susceptibility (S) to growth depression from toxins in endophyte-infected tall fescue seed. To examine a possible correlated response to that selection, three experiments subsequently were conducted to examine food soiling...

  17. A note on separation from one or more lamb(s) in Merino lines divergently selected for ewe multiple rearing ability

    Contributor(s):: Cloete, S. W. P., Scholtz, A. J., Hoope, J. M. T.

    During 1993-95, post parturient behaviour was studied in 370 Merino ewes, 2-6 years of age, from 2 lines divergently selected for multiple rearing ability kept at the Elsenburg Development Institute. Since 1986, high line ram and ewe replacements had been selected from dams that reared >1 lamb...

  18. Classifying sows' activity types from acceleration patterns: an application of the Multi-Process Kalman Filter

    Contributor(s):: Cornou, C., Lundbye-Christensen, S.

    An automated method of classifying sow activity using acceleration measurements would allow the individual sow's behavior to be monitored throughout the reproductive cycle; applications for detecting behaviors characteristic of estrus and farrowing or to monitor illness and welfare can be...

  19. Effect of environmental enrichment and breed line on the incidence of belly nosing in piglets weaned at 7 and 14 days-of-age

    Contributor(s):: Bench, C. J., Gonyou, H. W.

    The effect of enrichment and breed line on belly nosing in early-weaned pigs was investigated over two studies. In a preliminary study, 291 piglets were weaned at 7 days-of-age and observed over two consecutive days (pigs ranged from 17 to 30 days-of-age at time of observation). Piglets were fed...