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  1. Development of the attachment bond in guide dogs

    Contributor(s):: Valsecchi, P., Previde, E. P., Accorsi, P. A., Fallani, G.

    This study investigates ontogenetic aspects of attachment behaviour in guide dogs using the Strange Situation Test (SST). Seventeen dogs were tested three times in different periods of the guide dog training program. The first test was carried out when the dogs were 11-15 months old and before...

  2. Dogs can discriminate barks from different situations

    Contributor(s):: Maros, K., Pongracz, P., Bardos, G., Molnar, C., Farago, T., Miklosi, A.

    We investigated if dogs can discriminate barks of another individual recorded in two markedly different situations: (a) when a stranger entered the property where the dog lived, and (b) when the dog was tethered to a tree and left alone. We used a habituation-dishabituation paradigm for testing...

  3. Effects of feed-back from the nest on maternal responsiveness and postural changes in primiparous sows during the first 24 h after farrowing onset

    Contributor(s):: Pedersen, L. J., Damm, B. I., Marchant-Forde, J. N., Jensen, K. H.

    In order to elucidate whether feed-back from a farrowing nest affects the sows' activity level and responsiveness to piglets during the first 24 h after the onset of parturition, 18 primiparous Landrace x Yorkshire sows were given the opportunity to build a farrowing nest of peat, straw and...

  4. Effects of mirror-image exposure on heart rate and movement of isolated heifers

    Contributor(s):: Piller, C. A. K., Stookey, J. M., Watts, J. M.

    Characteristics of a fear response in cattle include an increased heart rate, and signs of agitation. Cattle show this response when visually isolated from herdmates. Two trials were conducted to determine whether exposure to a mirror reduces the stress of social isolation of 41 heifers confined...

  5. Effects of repeated stress during pregnancy in ewes on the behavioural and physiological responses to stressful events and birth weight of their offspring

    Contributor(s):: Roussel, S., Hemsworth, P. H., Boissy, A., Duvaux-Ponter, C.

    Stressors are frequently encountered during the pregnancies of farm animals. However, very few studies have investigated the effects of repeated stress in pregnant females on their offspring. Forty-eight ewes at 2.5 months of pregnancy were selected for their high or low cortisol response to...

  6. Familiarity and group size affect emotional stress in Japanese Black heifers

    Contributor(s):: Takeda, K., Sato, S., Sugawara, K.

    We compared behavioural and cardiac responses to emotional stresses between familiar and unfamiliar heifers in groups of two or five. Fourteen Japanese Black heifers were divided into two experimental groups of two individuals (F2) and two groups of five individuals (F5) that were familiar with...

  7. Fear of novel and startling stimuli in domestic dogs

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

    Dog aggression to humans is a serious problem and it appears that fear-induced aggression in dogs is often implicated. Furthermore, it has been suggested that novel and startling stimuli may trigger fear-induced aggression. The aim of the present study was to study some possible behavioural and...

  8. Fearfulness in horses: a temperament trait stable across time and situations

    Contributor(s):: Lansade, L., Bouissou, M. F., Erhard, H. W.

    The purpose of this study was to test the existence of a "fearfulness" trait in horses, by testing the stability across situations and over time of the responses to different fear-eliciting situations. It was also to identify which behavioural parameters are the best indicators of this trait....

  9. Feed barrier design affects behaviour and physiology in goats

    Contributor(s):: Nordmann, E., Keil, N. M., Schmied-Wagner, C., Graml, C., Langbein, J., Aschwanden, J., Hof, J. von, Maschat, K., Palme, R., Waiblinger, S.

    Among other things, feed barrier design for goats can differ with regard to ease of leaving, backward view, and presence of physical separation. The aim of our study was to investigate whether the type of feed barrier influences agonistic behaviour and stress. The study involved 55 adult...

  10. Human contact and the effects of acute stress on cows at milking

    Contributor(s):: Rushen, J., Munksgaard, L., Marnet, P. G., Passille, A. M. de

    We examined the effects of novelty/isolation stress on cows at milking and whether human contact reduced the stress. Holstein cows (n=18) were observed during three experimental milkings following a balanced order: (1) control (C)-milked in usual place; (2) novelty/isolation stress (S)-milked...

  11. Identification of potential physiological and behavioral indicators of postoperative pain in horses after exploratory celiotomy for colic

    Contributor(s):: Pritchett, L. C., Ulibarri, C., Roberts, M. C., Schneider, R. K., Sellon, D. C.

    Physiological and behavioral parameters were determined in 27 horses to identify potential indicators of postoperative pain following exploratory celiotomy for colic. Experimental groups were 10 horses that received no treatment (Control), 10 horses anesthetized for a non-painful procedure...

  12. Learning performances in young horses using two different learning tests

    Contributor(s):: Visser, E. K., Reenen, C. G. van, Schilder, M. B. H., Barneveld, A., Blokhuis, H. J.

    To achieve optimal performance in equine sports as well as in leisure not only the physical abilities of the horse should be considered, but also the horse's personality. Besides temperamental aspects, like emotionality, or the horse's reactivity towards humans in handling situations, the...

  13. Neonatal foal handling

    Contributor(s):: Simpson, B. S.

    Recent interest has focused on the advantage of intensively handling young foals as a means of producing more tractable horses, accustomed to humans and receptive to training. To date, the effect of this intensive handling, dubbed imprint training in the popular literature, is not tested. The...

  14. Previous handling and gentle interactions affect behaviour and heart rate of dairy cows during a veterinary procedure

    Contributor(s):: Waiblinger, S., Menke, C., Korff, J., Bucher, A.

    Veterinary and management procedures often are aversive to the animals, resulting in physiological and behavioural stress reactions, which increase the risk of accidents and might lower performance. We investigated the effects of previous positive handling and of gentle interactions during the...

  15. Reactions of calves to handling depend on housing condition and previous experience with humans

    Contributor(s):: Lensink, B. J., Raussi, S., Boivin, X., Pyykkonen, M., Veissier, I.

    This study investigated the influence of stockperson's behaviour and housing conditions on calves' behavioural reactions to people, and behavioural and physiological reactions to handling and short transport. Sixty-four Finnish Ayrshire male calves were used; half of them were housed in...

  16. Responses of dairy cows and calves to each other's vocalisations after early separation

    Contributor(s):: Marchant-Forde, J. N., Marchant-Forde, R. M., Weary, D. M.

    Current commercial dairy practice involves the removal of the calf from the dam within the first day of life. Both vocalize after separation. The aim of this study was to determine if cows and calves respond to each other's calls after separation and whether they could distinguish their own...

  17. Social licking in dairy cattle - effects on heart rate in performers and receivers

    Contributor(s):: Laister, S., Stockinger, B., Regner, A. M., Zenger, K., Knierim, U., Winckler, C.

    Using heart rate (HR) measurements we investigated whether potential calming effects of social licking were evident for both active (performers) and passive (receivers) licking partners. A HR decline was assumed to indicate relaxation and thus the experience of positive emotions. Effects of the...

  18. The effect of a feeding stress-test on the behaviour and heart rate variability of control and crib-biting horses (with or without inhibition)

    Contributor(s):: Nagy, K., Bodo, G., Bardos, G., Harnos, A., Kabai, P.

    Crib-biting is a form of oral stereotypy affecting 4-5% of horses. Once fixed, crib-biting is difficult to eliminate by behaviour therapy, however, its performance can be inhibited by collar or surgery treatment (modified Forssell's procedure). Although surgical intervention is widespread, the...

  19. The effect of time left alone at home on dog welfare

    Contributor(s):: Rehn, T., Keeling, L. J.

    The aim of this study was to investigate the effect of time left alone on dog behaviour and cardiac activity. Twelve privately owned dogs, with no history of separation related behaviour problems, were video-recorded on three different occasions when left alone in their home environment. The...

  20. The effect of training schedule on learned tasks in yearling horses

    Contributor(s):: Kusunose, R., Yamanobe, A.

    12 yearlings (20-22-months-old) were divided into 2 groups and subjected to 2 different training schedules: (a) 30 min of training daily (the daily trained group); and (b) 30 min of training for 4 days, followed by a 3-day rest (the intermittently trained group), in order to compare the effect of...