| Records |
| Author |
Bertolucci, C.; Giannetto, C.; Fazio, F.; Piccione, G. |
| Title |
Seasonal variations in daily rhythms of activity in athletic horses |
Type |
Journal Article |
| Year |
2008 |
Publication |
Animal |
Abbreviated Journal |
Animal |
Volume  |
2 |
Issue |
07 |
Pages |
1055-1060 |
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| Abstract |
Circadian rhythms reflect extensive programming of biological activity that meets and exploits the challenges and opportunities offered by the periodic nature of the environment. In the present investigation, we recorded the total activity of athletic horses kept at four different times of the year (vernal equinox, summer solstice, autumn equinox and winter solstice), to evaluate the presence of seasonal variations of daily activity rhythms. Athletic Thoroughbred horses were kept in individual boxes with paddock. Digitally integrated measure of total activity of each mare was continuously recorded by actigraphy-based data loggers. Horse total activities were not evenly distributed over the day, but they were mainly diurnal during the year. Daily activity rhythms showed clear seasonal variations, with the highest daily amount of activity during the vernal equinox and the lowest during the winter solstice. Interestingly, the amount of activity during either photophase or scotophase changed significantly throughout the year. Circadian analysis of horse activities showed that the acrophase, the estimated time at which the peak of the rhythm occurs, did not change during the year, it always occurred in the middle of the photoperiod. Analysing the time structure of long-term and continuously measured activity and feeding could be a useful method to critically evaluate athletic horse management systems in which spontaneous locomotor activity and feeding are severely limited. Circadian rhythms are present in several elements of sensory motor and psychomotor functions and these would be taken into consideration to plan the training schedules and competitions in athletic horses. |
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Equine Behaviour @ team @ |
Serial |
4823 |
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| Author |
Berliner Vr, |
| Title |
The estrous cycle of the mare. In: Cole,H.H., Cupps,P.T. |
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Journal Article |
| Year |
1959 |
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Abbreviated Journal |
Reproductions in domestic animals |
| Volume |
1 |
Issue |
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Pages |
267-289 |
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from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
942 |
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| Author |
Epstein H, |
| Title |
Descent and origin of the ass |
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Book Chapter |
| Year |
1971 |
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In Epstein: The origin of the domestic animals of Africa. II. |
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394-398 |
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from Professor Hans Klingels Equine Reference List |
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no |
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1069 |
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| Author |
Epstein H, |
| Title |
Wild Ass |
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Journal Article |
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1971 |
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In Epstein: The origin of the domestic animals of Africa. II |
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378-381 |
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from Professor Hans Klingels Equine Reference List |
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no |
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1070 |
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| Author |
Klingel H, |
| Title |
Communication in Perissodactyla |
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Book Chapter |
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1977 |
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in Sebeok TA (ed): How Animals Communicate |
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715-727, |
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| Notes |
from Professor Hans Klingels Equine Reference List |
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no |
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1305 |
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| Author |
Rubenstein, D. I. |
| Title |
The ecology of female social behaviour in horses, zebras and asses |
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Book Chapter |
| Year |
1994 |
Publication |
Animal Societies |
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Animal Societies |
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13-28 |
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Kyoto University Press |
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Jarman, P.J.;, Rositter, A. |
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4-87698-014-4 |
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yes |
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1528 |
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| Author |
Tembrock G, |
| Title |
Land mammals |
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Book Chapter |
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1968 |
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In: Sebeok,T.A.; Animal Communication. London. |
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338-404 |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
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Serial |
1643 |
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| Author |
WARING GH et al, |
| Title |
The behaviour of horses |
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Book Chapter |
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In: Behaviour of domestic animals |
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330-369 |
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from Professor Hans Klingels Equine Reference List |
Approved |
no |
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Serial |
1698 |
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| Author |
Péron, F.; Ward, R.; Burman, O. |
| Title |
Horses (Equus caballus) discriminate body odour cues from conspecifics |
Type |
Journal Article |
| Year |
2013 |
Publication |
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Abbreviated Journal |
Animal Cognition |
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Pages |
1-5 |
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Body odour; Discrimination; Equus caballus; Habituation; Social memory |
| Abstract |
Knowledge about social recognition and memory in animals can help us to determine appropriate management and husbandry techniques. In this study, we used a habituation–discrimination procedure to investigate the ability of horses (Equus caballus) to distinguish between the body odour samples of unfamiliar conspecifics. To pick up body odour, we rubbed material on the coat of horses and presented these unknown body odours to 16 different conspecifics of the same sex and similar age. The test consisted of two successive two-min presentations of a sample from one individual (e.g. individual ‘A’) and a simultaneous presentation of samples from individual ‘A’ and a novel individual (e.g. individual ‘B’) during a final third presentation. The results showed that horses, regardless of sex, decreased the time they spent investigating conspecific body odour across the initial two presentations—demonstrating habituation. In the final presentation, the results demonstrated successful discrimination of the previously experienced odour because horses investigated the novel olfactory sample (‘B’) significantly more than the pre-exposed sample (‘A’). Taken together, these findings suggest, for the first time, that horses are able to discriminate two stimuli derived from body odours of unfamiliar conspecifics over short period of time. |
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Springer Berlin Heidelberg |
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English |
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1435-9448 |
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no |
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Equine Behaviour @ team @ |
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5742 |
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| Author |
Gaunet, F.; Massioui, F.E. |
| Title |
Marked referential communicative behaviours, but no differentiation of the “knowledge state” of humans in untrained pet dogs versus 1-year-old infants |
Type |
Journal Article |
| Year |
2014 |
Publication |
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Abbreviated Journal |
Animal Cognition |
| Volume |
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1-11 |
| Keywords |
Dog; Communication; Knowledge attribution; Infant; Social; Learning |
| Abstract |
The study examines whether untrained dogs and infants take their caregiver’s visual experience into account when communicating with them. Fifteen adult dogs and 15 one-year-old infants were brought into play with their caregivers with one of their own toys. The caregiver gave the toy to the experimenter, who, in different conditions, placed it either above or under one of two containers, with both the infant or dog and the caregiver witnessing the positioning; in a third condition, the caregiver left the room before the toy was placed under one of the two containers and later returned. Afterwards, for each condition, the caregiver asked the participant to indicate the location of the toy. Neither dogs nor infants—untrained to the use of the partner’s knowledge state—showed much difference of behaviour between the three conditions. However, dogs showed more persistence for most behaviours (gaze at the owner, gaze at the toy and gaze alternation) and conditions, suggesting that the situation made more demands on dogs’ communicative behaviours than on those of infants. When all deictic behaviours of infants (arm points towards the toy and gaze at the toy) were taken into account, dogs and infants did not differ. Phylogeny, early experience and ontogeny may all play a role in the ways that both species communicate with adult humans. |
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Springer Berlin Heidelberg |
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English |
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1435-9448 |
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no |
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Equine Behaviour @ team @ |
Serial |
5789 |
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