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  1. A behaviour test on German Shepherd dogs: heritability of seven different traits

    Contributor(s):: Ruefenacht, S., Gebhardt-Henrich, S., Miyake, T., Gaillard, C.

    In this study, genetic and non-genetic effects on behavioural traits were estimated, based on records of the field behaviour test of the Swiss German Shepherd Dog breeding club. This standardized test has been applied since 1949 and comprised the following seven traits: self-confidence, nerve...

  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. A comparison of pet and purpose-bred research dog ( Canis familiaris) performance on human-guided object-choice tasks

    Contributor(s):: Lazarowski, L., Dorman, D. C.

    Several studies have shown that domestic dogs respond to human social cues such as pointing. Some experiments have shown that pet dogs outperformed wolves in following a momentary distal point. These findings have lent support to the hypothesis that domestication is responsible for domestic dogs'...

  4. A note on the consistency and specificity of lambs' responses to a stockperson and to their photograph in an arena test

    Contributor(s):: Tallet, C., Veissier, I., Boivin, X.

    Understanding how farm animals perceive their stockperson is a major challenge, especially for artificially reared animals which are known to show strong attraction to humans. Replacing the stockperson by its photograph in an arena test could be a useful method for standardising human stimuli....

  5. A note on the effects of co-mingling piglet litters on pre-weaning growth, injuries and responses to behavioural tests

    Contributor(s):: Kanaan, V. T., Pajor, E. A., Lay, D. C., Jr., Richert, B. T., Garner, J. P.

    The purpose of this study was to determine how co-mingling litters affected piglets' pre-weaning growth, ear injuries, suckling behaviour and responses to behavioural tests used to measure coping abilities. Thirty sows and their respective litters were housed in standard farrowing crates until...

  6. 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...

  7. A preliminary study of the effects of individual response to challenge tests and stress induced by humans on learning performance of weaned piglets (Sus scrofa)

    Contributor(s):: Brajon, S., Laforest, J. P., Schmitt, O., Devillers, N.

    This study investigated whether individual behavioural characteristics of piglets and stress induced by experience with humans can influence learning performance. After weaning, piglets received a chronic experience with humans to modulate their emotional state: rough (ROU), gentle (GEN), or...

  8. Acid-base responses of fat-adapted horses: relevance to hard work in the heat

    Contributor(s):: Kronfeld, D. S., Custalow, S. E., Ferrante, P. L., Taylor, L. E., Wilson, J. A., Tiegs, W.

    Feeding and training may affect acid-base responses to strenuous exercise. Acidosis usually correlates with higher blood lactate concentrations during intense exercise, but alkalosis has been found in horses, and higher lactate responses during sprints have been found in fat adapted horses. A...

  9. Adapting to the human world: Dogs' responsiveness to our social cues

    Contributor(s):: Reid, Pamela J.

  10. Animal welfare: should we change housing to better accommodate the animal or change the animal to accommodate the housing?

    Contributor(s):: Cheng, Heng-Wei

    Animal welfare (well-being) can be generally defined as 'a state of harmony between the animal and its environment, characterized by optimal physical, behavioural and psychological functioning and high quality of the animal's life'. Since its inception in the early nineteenth century, through...

  11. Approach/avoidance responses of domestic chicks to familiar and unfamiliar video images of biologically neutral stimuli

    Contributor(s):: Jones, R. B., Larkins, C., Hughes, B. O.

    One-day-old individually housed chickens were exposed to video images of an illuminated blank monitor screen (B) or a coloured, moving, complex screen saver stimulus (SS) for 5 to 10 or 30 min a day for 9 to 11 days. In experiment 1, repeated exposure to the B and SS video images led to an...

  12. Behavioural and physiological responses of pigs to sound

    Contributor(s):: Talling, J. C., Waran, N. K., Wathes, C. M., Lines, J. A.

    Eight piglets were exposed to artificially generated sounds, nominal intensities of 85 or 97 dB(Lin), and frequencies of 500 or 8000 Hz for 15 min during a 1-h experimental period. In a 2nd experiment, 8 piglets were exposed to 20 min of farm sounds (Leq 80 dB), transport sounds (Leq 83 dB),...

  13. Behavioural comparison of layer and broiler fowl: measuring fear responses

    Contributor(s):: Keer-Keer, S., Hughes, B. O., Hocking, P. M., Jones, R. B.

    Broilers and White Leghorns have different temperaments-White Leghorns are regarded as flighty and broilers as docile. This difference in temperament is sometimes interpreted as a difference between the strains in underlying fearfulness. Five experiments were carried out to compare fear responses...

  14. Behavioural responses of cattle to the odours of blood and urine from conspecifics and to the odour of faeces from carnivores

    Contributor(s):: Terlouw, E. M. C., Boissy, A., Blinet, P.

    Before experimentation, 12 heifers were trained during 15 days to walk through a corridor for food. In the middle of the corridor, at either side, 2 ventilating odour dispensers were fixed behind perforated screens. The odours of urine from non-stressed and stressed conspecifics and of blood were...

  15. 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...

  16. Behavioural responses of piglets to castration: the effect of piglet age

    Contributor(s):: Taylor, A. A., Weary, D. M., Lessard, M., Braithwaite, L.

    It has long been assumed that neonatal animals are less sensitive than older animals to pain, and this reasoning has been used to recommend that routine surgical procedures be performed at an early age. In this study we tested if vocal and other behavioural responses to castration increase with...

  17. 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...

  18. Behavioural, saliva cortisol and heart rate responses to different types of stimuli in dogs

    Contributor(s):: Beerda, B., Schilder, M. B. H., Hooff, J. A. R. A. M. van, Vries, H. W. de, Mol, J. A.

    Ten dogs of both sexes, different ages and various breeds were each subjected to 6 different stimuli: sound blasts, short electric shocks, a falling bag, an opening umbrella and 2 forms of restraint. Each type of stimulus had been selected for its assumed aversive properties and was administered...

  19. Can Robots Manifest Personality?: An Empirical Test of Personality Recognition, Social Responses, and Social Presence in Human-Robot Interaction

    Contributor(s):: Lee, Kwan Min, Peng, Wei, Jin, Seung- A., Yan, Chang

  20. Clicker increases resistance to extinction but does not decrease training time of a simple operant task in domestic dogs ( Canis familiaris )

    Contributor(s):: Smith, S. M., Davis, E. S.

    Despite its popularity among pet owners and professional trainers, we are not aware of any studies that have investigated the efficacy of clicker training in canines. To this end, we taught 35 basenjis to nose-touch an orange traffic cone. Upon meeting pre-determined criteria, dogs progressed...