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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.

    Zoological institutions develop human-animal interaction opportunities for visitors to advance missions of conservation, education, and recreation; however, the animal welfare implications largely have yet to be evaluated. This behavioral study was the first to quantify impacts of guest feeding...

  2. A close keeper-nonhuman animal distance does not reduce undesirable behavior in contact yard goats and sheep

    Contributor(s):: Anderson, U. S., Maple, T. L., Bloomsmith, M. A.

    This study investigated the relation between zookeeper-nonhuman animal distance and the undesirable behaviour that goats and sheep exhibited toward visitors of Zoo Atlanta's (Georgia, USA) contact yard. It hypothesized that a close distance between keeper and animal would be associated with a...

  3. How do miniature pigs discriminate between people? Discrimination between people wearing coveralls of the same colour

    Contributor(s):: Koba, Y., Tanida, H.

    Seven experiments were conducted on 4 miniature pigs to determine: (1) whether the pigs can discriminate between people wearing the same coloured clothing and (2) what cues they rely on if they could discriminate. For 2 weeks before the experiments began, the pigs were conditioned in a Y-maze to...

  4. Repeatability and reliability of an approach test to determine calves' responsiveness to humans: "a brief report"

    Contributor(s):: Lensink, B. J., Reenen, C. G. van, Engel, B., Rodenburg, T. B., Veissier, I.

    A test aiming to measure calves' responses to humans ("approach test") was conducted in two steps: during the first step (approach phase) the calves' reaction to the appearance of an unknown person (withdrawal or not) was observed during milk provision, during the second step (touch phase) the...

  5. A note on the relationship between the behavioural response of lactating sows to humans and the survival of their piglets

    Contributor(s):: Hemsworth, P. H., Pedersen, V., Cox, M., Cronin, G. M., Coleman, G. J.

    The objective of this study was to examine the relationships, based on unit averages, between the behavioural responses of lactating sows to humans and the performance of sows in 25 farrowing units at a large commercial farm. The behavioural responses of 25 sows in each farrowing unit were...

  6. Fairness and other-regarding preferences in nonhuman primates

    Contributor(s):: Brosnan, Sarah F.

  7. Behavioural responses of domestic pigs and cattle to humans and novel stimuli

    Contributor(s):: Hemsworth, P. H., Price, E. O., Borgwardt, R.

    Two experiments were conducted on pigs and beef cattle to study whether or not regular exposure to either humans or novel objects resulted in stimulus-specific or generalised behavioural responses. Groups of pigs and cattle were allocated to one of three treatments: regular brief exposure to...

  8. Behavioural responses to humans and the productivity of commercial broiler chickens

    Contributor(s):: Hemsworth, P. H., Coleman, G. J., Barnett, J. L., Jones, R. B.

    A higher proportion of birds that had received minimal human contact withdrew as an experimenter approached in a standard test than birds that had received regular human contact (0.77 vs. 0.46) and these birds that had received minimal human contact had higher plasma corticosterone concentrations...

  9. Conditioned approach-avoidance responses to humans: the ability of pigs to associate feeding and aversive social experiences in the presence of humans with humans

    Contributor(s):: Hemsworth, P. H., Verge, J., Coleman, G. J.

    A series of experiments were conducted to determine whether pigs learn to associate rewarding or aversive elements of a procedure with the handler conducting the procedure. Experiment 1 was conducted to examine whether sexually unreceptive female pigs regularly introduced to boars in their...

  10. Guard dogs: sleep, work and the behavioural responses to people and other stimuli

    Contributor(s):: Adams, G. J., Johnson, K. G.

    Sleep-wake cycles and the responses to naturally occurring stimuli were studied in 17 guard dogs; detailed video recordings were made of 10 of these dogs. The guard dogs lived permanently on-site, or were commercially owned and brought on to premises, removed before the workers started and rested...

  11. Responsiveness and perceived intelligence as predictors of speech addressed to cats

    Contributor(s):: Sims, V. K., Chin, M. G.

    Speech addressed to a cat was examined to test whether the use of child-directed language (CDL) with a companion animal is related to perceived intelligence of a listener and/or listener responsiveness. Fifty-one undergraduates briefly entertained a cat using a toy, and the vast majority of these...