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Ahmadinejad, M. |
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Title |
Influence of Sex and Age on Color discrimination in caspian Pony |
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2008 |
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IESM 2008 |
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Although an early and influential review led to the often-cited conclusion that color discrimination is rare among mammals, more recent findings suggest that it is actually widespread. According to jacobes, all non-nocturnal mammalian species that have adequately exmined show some color vision capacity. Data on the presence and characteristics and the influence of sex and age on color vision in the horse, remain spares and non in Caspian pony. Eight Caspian ponies were presented with a series of two-choice color vs. grey discrimination problems. One mare pony was eliminated due to traumatic injury to her eye. Experiments were performed in a box of 3 * 3 meter containing a wall with two translucent panels that were illuminated from behind by light projected through color or grey filters to provide the discriminative stimuli. Ponies were first adopted to the stall (box) with two panels in it and then learned to push one of the panels in order to receive the food rewards behind positive stimuli in an achromatic light-dark discrimination task. The ponies were then tested on their abilities to discriminate between grey and four individual colors; red; 617nm, yellow; 581nm, green; 538nm and blue 470 nm. The answer to the question \“do the ponies see color\” was yes but sex and age had no influence on the color discrimination of the ponies . |
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Ahmadinejad, M. |
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IESM 2008 |
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Talk 15 min IESM 2008 |
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yes |
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Equine Behaviour @ team @ |
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4501 |
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Author |
Proops, L.; McComb, K.; Reby, D. |
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Title |
Horse-human interactions: Attention attribution and the use of human cues by domestic horses (Equus caballus). |
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2008 |
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IESM 2008 |
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social cognition; animal-human interaction; horses; attention |
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Recent research has shown that domestic dogs are particularly good at reading human attentional cues, often outperforming chimpanzees and hand reared wolves [1, 2]. It has been suggested that the close evolutionary relationship between humans and dogs has led to the development of this ability, however very few other species have been studied [3]. We tested the ability of 24 domestic horses to discriminate between an attentive and inattentive person when choosing whom to approach for food. While the attentive person faced forwards, the inattentive person either stood with their body turned 180° away from the subject (body orientation condition), stood with their body facing forwards but their head facing away (head orientation condition) or stood facing forwards but with their eyes closed (eyes closed condition). A fourth, mixed condition was included where the attentive person stood with their body facing away from the subjects but their head turned towards the subject while the inattentive person stood with their body facing the subject but their head turned away. Horses chose the attentive person significantly more often using the body cue (n = 24, k = 19, p = 0.003), the head cue (n = 24, k = 18, p = 0.011), and the eye cue (n = 24, k = 19, p = 0.003) but not the mixed cue (n = 24, k = 13, p = 0.42). In an additional pilot study, horses were tested in an object choice task. A human experimenter cued one of two buckets by either tapping the bucket (tap condition), orienting their body towards the bucket and pointing (body and point condition), pointing while facing forwards (point condition) or orienting their body towards the bucket (body condition). If the subjects chose the correct bucket they were rewarded. Subjects were able to use the tap cue (n = 31, k = 21, p = 0.035), body + point cue (n= 31, k = 21, p = 0.035) and the point cue (n = 30, k = 21, p = 0.021) but not the body cue (n = 31, k = 11, p = 0.076). These results taken together suggest that domestic horses are also very sensitive to human attentional cues, including gaze.
Keywords:
social cognition, animal-human interaction, horses, attention attribution, domestication
1. Hare, B., Brown, M., Williamson, C., and Tomasello, M. (2002). The domestication of social cognition in dogs. Science 298, 1634-1636.
2. Gacsi, M., Miklosi, A., Varga, O., Topal, J., and Csanyi, V. (2004). Are readers of our face readers of our minds` Dogs (Canis familiaris) show situation-dependent recognition of human’s attention. Animal Cognition 7, 144-153.
3. Hare, B., and Tomasello, M. (2005). Human-like social skills in dogs? Trends Cogn. Sci. 9, 439-444. |
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Proops, L. |
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IESM 2008 |
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Poster IESM 2008 |
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Equine Behaviour @ team @ |
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4502 |
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Author |
Aurich, J. |
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Title |
Equine Science and Management Programme in Vienna |
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2008 |
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IESM 2008 |
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With a growing importance of equestrian sports and horse breeding, there is an increasing need for well-trained professionals in the equine sector. While well-established vocational training programmes exist in Germany, they do neither provide qualifications for leading positions nor train for scientific work on the horse. The need for specific equine university programmes has been questioned occasionally, however, neither university programmes in equine veterinary medicine (focussing on diseased horses) nor animal science (focussing on food-producing farm animals) meet the broad requirements of today`s equine industry.
The first academic programme in equine science and management in the German-speaking countries was established in 2003 by the Universities of Veterinary Sciences and Agricultural Sciences in Vienna, Austria. The 3-year bachelor programme (180 ECTS points) includes sciences, anatomy, physiology, genetics, nutrition, ethology, economics, marketing, management, legislation, reproduction, healtcare, equitation science and organisation of breeding and equestrian sports. Courses are provided by the partner universities and by lecturers from practise and equestrian organisations including the German and Austrian equestrian federations. Lectures and seminars are complemented by a scientific thesis and placements in the equine industry.
Out of 100-150 applicants each year, 50 students are selected on the basis of their previous activities, a written test and interviews. Students are coming from Austria (40%), Germany (50%) and other countries (10%) ensuring a truly European programme. The majority of students enter the programme directly after leaving secondary school, but approx. 20% have undergone previous vocational training (e.g. Pferdewirt).
About 40% of the graduates enter into subsequent MSc programmes in animal science or agribusiness. Others are studying for an MBA or a degree in veterinary medicine, journalism, law and other disciplines. Graduates from the 2003 class finish their MSc in agriculture this year at universities in Austria, Germany and the United Kingdom and some of them will continue with a doctorate. Students not entering graduate programmes after obtaining their BSc do work as stud managers or management assistants in Germany and English-speaking countries or are employed by equestrian organisations such as the German and Austrian national federation, equestrian journals, equine nutrition companies, non-university research and consulting institutions, the Ministry of Agriculture and in a variety of other fields. The success of the Vienna equine programme has also encouraged activities at other universities and programmes with near-similar curricula have recently been established in Germany and Switzerland.
In conclusion, graduates of the Vienna equine science programme follow a wide-range of professional and academic activities within the equine industry. This spectrum is by far more extensive than the sector covered by professionals from traditional vocational training. With practical experience obtained on the job, adaequately qualified graduates will more and more obtain leading positions. In addition, the programme is a first step in the training of future researchers and teachers. By promoting and conducting research on the horse, equine science programmes do also secure the leading role of the European equine industry for the future. |
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University of Veterinary Sciences, Vienna, Austria. joerg.aurich@vu-wien.ac.at, phone +43 1 250775400, fax +43 1 250775490 |
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Aurich, J. |
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IESM 2008 |
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Notes |
Talk 15 min IESM 2008 |
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yes |
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Call Number |
Equine Behaviour @ team @ |
Serial |
4503 |
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Author |
Krueger, K. (ed) |
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Title |
Proceedings of the International Equine Science Meeting 2008 |
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2008 |
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IESM 2008 |
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Equine Ecology; Equine Sociality; Equine Learning; Equine Cognition; Equine Welfare |
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Target group: Biologists, Psychologists, Veterinarians and Professionals
Meeting target: Because the last international meeting on Equine Science took place a couple years ago, there is an urgent need for equine scientists to exchange scientific knowledge, coordinate research provide knowledge for practical application, and discus research results among themselves and with professionals who work with horses. Additionally, dialog concerning the coordination of the study “Equitation Science” in Europe is urgently needed. Coordination and cooperation shall arise from the meeting, enrich the research, and advance the application of scientific knowledge for the horses` welfare. |
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Xenophon Verlag |
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Wald |
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Krueger, K. |
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English |
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978-3-9808134-0-2 |
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no |
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Equine Behaviour @ team @ |
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4508 |
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Author |
Götz, C. |
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Title |
Praxishandbuch Freispringen: Gymnastik – Training – Abwechslung |
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2008 |
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80 |
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Aus dem Inhalt:
* Warum Freispringen?
* Die Ausstattung
* Der Ablauf
* Sehen lernen
* Freispringen aufbauen
* Fehler korrigieren
Kurzbeschreibung
In vielen größeren Reitställen wird das Freispringen von den dortigen Ausbildern für die untergestellten Pferde angeboten. Doch auch in Eigenregie und auf kleineren Anlagen – sowohl in der Halle als auch auf dem Reitplatz – lässt sich das Freispringen organisieren und durchführen. Es bringt Abwechslung in den Trainingsalltag von Pferden aller Rassen und Reitweisen und hat auch für Pferde, die unter dem Sattel nicht springen müssen, einen hervorragenden gymnastizierenden Effekt. Für Springpferde gehört das Freispringen zu einem durchdachten Trainingskonzept zwingend dazu – lernen sie hierbei doch, Selbstvertrauen und Routine zu gewinnen und ihre Springtechnik zu verbessern. Voraussetzung ist, dass die Menschen, die das Freispringen durchführen, die Hindernisse sachkundig aufbauen, die Pferde richtig vorbereiten und den Ablauf des Freispringens den Fähigkeiten des jeweiligen Kandidaten entsprechend gestalten. Das notwendige Handwerkszeug hierfür liefert ihnen dieses verständlich geschriebene und mit vielen erläuternden Bildern und Bildabfolgen versehene Buch.
Über den Autor
Claudia Götz, geboren 1965, ist Diplomjournalistin und arbeitet unter anderem als Sachbuchautorin. Als Matrix-Rhythmus-Therapeutin verfügt sie über umfangreiches Wissen rund um Anatomie und Physiologie der Muskulatur und bildet sich zum Beispiel im Bereich Trainingslehre regelmäßig weiter. Die Berittführerin FN und begeisterte Vielseitigkeits- und Freizeitreiterin lebt in der Nähe von Regensburg. |
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Cadmos Verlag |
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Brunsbek |
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978-3861274476 |
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Equine Behaviour @ team @ |
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4954 |
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Author |
Hoffmann; G. |
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Title |
Bewegungsaktivität und Stressbelastung bei Pferden in Auslaufhaltungssystemen mit verschiedenen Bewegungsangeboten |
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2008 |
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Dissertation |
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Pferdehaltungssysteme mit angrenzenden Ausläufen gelten als eine sehr tiergerechte
Haltungsform, da sie den Tieren eine gewisse Bewegungsmöglichkeit
bieten. Ziel der vorliegenden Untersuchung war es, zu erfassen, ob der angrenzende
Auslauf selbst einen ausreichenden Anreiz zur Bewegung darstellt und wie sich verschiedene
Bewegungs- und Platzangebote auf die Bewegungsaktivität von Pferden
in einer Gruppen-Auslaufhaltung auswirken. Zudem wurde ermittelt, welche Auswirkung
die Bewegungsform bzw. –intensität auf das Wohlbefinden der Tiere hat.
Der Großteil der in Deutschland gehaltenen Pferde verbringt die meiste Zeit des
Tages im Stall, obwohl mittlerweile bekannt ist, dass Pferde unter natürlichen
Haltungsbedingungen 12 bis 16 Stunden des Tages in Bewegung verbringen. Der
Optimierung der Stallhaltungssysteme gilt daher ein besonderes Interesse.
Zu diesem Zweck wurden von September 2004 bis Oktober 2005 Versuche mit 24
Warmblutstuten im Alter von 1½ bis 3½ Jahren in Einzel- und Gruppen-
Auslaufhaltungssystemen durchgeführt. Jeweils sechs Pferde bildeten eine Versuchsgruppe.
In jeder Gruppe fanden fünf Varianten von einer ca. dreiwöchigen
Dauer statt. Die Gruppenhaltung wurde dabei durch drei unterschiedliche Zusatzbewegungsangebote
(2 Std. Weide / Tag, 2 Std. unbegrünte Koppel / Tag, 1 Std. Freilauf-
Führanlage / Tag) ergänzt. In der Einzel-Auslaufhaltung (Box mit 45 m²-großem
angrenzenden Auslauf) und in einer Versuchsvariante der Gruppenhaltung bekamen
die Pferde hingegen keine zusätzliche Bewegung außerhalb des Stallhaltungssystems
angeboten. Das Gruppenhaltungssystem selbst war durch die räumliche
Trennung der Funktionsbereiche (Liegen, Fressen, Trinken, Bewegen) gekennzeichnet
und der angrenzende Auslauf war 270 m² groß. In einer zusätzlichen Versuchsphase
fand in der Gruppenhaltung eine Erweiterung des permanent zugänglichen
Auslaufs auf insg. 540 m² statt.
Die Bewegungsaktivität wurde mit Pedometern erfasst, die an jeweils einem Hinterbein
der Pferde befestigt wurden und ergänzend fand eine Analyse von Videoaufzeichnungen
statt. Zur Beurteilung der Stressbelastung fanden Messungen der Herz192
Zusammenfassung
frequenzvariabilität (Parameter HF und SD2) und der fäkalen Cortisolmetabolitenkonzentration
statt.
Die Auswertung des Bewegungsverhaltens ergab, dass eine zusätzliche zweistündige
freie Bewegung der Pferdegruppe auf einer Weide zu einer deutlichen
Steigerung der durchschnittlichen Bewegungsaktivität (149,6 Min. / Tag) führt,
ebenso wie eine einstündige Bewegung in einer Führanlage (173,0 Min. / Tag). Eine
unbegrünte Koppel regte die Pferde der Gruppenhaltung hingegen nicht zu vermehrter
Bewegung an (131,6 Min. / Tag), sondern bewirkte z. T. sogar eine Abnahme
der Bewegungsaktivität. In der Gruppen-Auslaufhaltung ohne zusätzliches Bewegungsangebot
war die Bewegungsaktivität ebenfalls gering (125,8 Min / Tag) und
während der Einzel-Auslaufhaltung ohne Zusatzbewegung zeigten die Pferde die
geringste Bewegungsaktivität (102,3 Min. / Tag).
Bei der alleinigen Analyse der Bewegungszeit im Stallhaltungssystem war kein signifikanter
Einfluss der zusätzlichen Bewegung außerhalb des Stallsystems auf die
übrige Fortbewegung feststellbar.
Auch eine Vergrößerung des an den Stall angrenzenden Auslaufs im Gruppenhaltungssystem
hatte keinen steigernden Einfluss auf das Bewegungsverhalten der
Pferde.
Die Stressbelastung der Pferde war in den Varianten der Gruppenhaltung mit zweistündigem
Weidegang (SD2: 82,9 ms; Cortisolmetaboliten: 29,0 nmol / kg Kot) sowie
der einstündigen Bewegung in einer Freilauf-Führanlage (SD2: 99,2 ms; Cortisolmetaboliten:
27,7 nmol / kg Kot) am geringsten. Die Untersuchungen zeigten eine
Stresszunahme in der Gruppenhaltung mit zweistündigem Auslauf auf einer unbegrünten
Koppel ohne Futterangebot (SD2: 101,3 ms; Cortisolmetaboliten:
39,6 nmol / kg Kot) sowie in der Variante der Gruppenhaltung ohne zusätzliches Bewegungsangebot
(SD2: 113,3 ms; Cortisolmetaboliten: 38,4 nmol / kg Kot). Dem
Mittelwert der Gruppe nach zu folgern hatten die Pferde während der Einzelhaltung
ohne Zusatzbewegung eine sehr große Stressbelastung (SD2: 123,8 ms; Cortisolmetaboliten:
37,5 nmol / kg Kot). Ein Vergleich der Gruppen- und Einzelhaltung hinsichtlich
der Herzfrequenzvariabilität hat jedoch gezeigt, dass insg. 70 % der Pferde
während der Haltung in einer Gruppe weniger Stress empfinden. Es gab aber auch
Zusammenfassung 193
Pferde (30 %), die in der Einzelhaltung eine abnehmende Stressbelastung zeigten,
wobei hier der Einfluss der Rangordnung eine entscheidende Rolle zu spielen
scheint.
Durch die Auswertung mehrerer Messparameter (sowohl für Stress- als auch für Bewegungsverhalten)
werden gleichgerichtete Tendenzen bei den Versuchsvarianten
deutlich, allerdings ist eine eindeutige Gewichtung der Parameter nicht möglich.
Somit ist die methodische Vorgehensweise dieser Untersuchung sehr positiv und als
notwendig anzusehen, da die Messdaten auch immer gewissen Schwankungen
durch externe Einflüsse unterliegen.
Allgemein ist festzuhalten, dass Auslaufhaltungssysteme zwar eine gewisse
Anregung zur Bewegung bieten, aber mit maximal vier Stunden (insg. 62 – 248 Min.)
Bewegung pro Tag war der tägliche Anteil an Bewegung sehr viel geringer als
beispielsweise bei Pferden in freier Wildbahn oder ganzjähriger Weidehaltung. Somit
deckt ein Auslaufhaltungssystem trotz getrennter Funktionsbereiche und eines
großen Auslaufs nicht den Bewegungsbedarf der Pferde, wenn keine zusätzlichen
Bewegungsanreize und –möglichkeiten angeboten werden.
Eine zusätzliche Bewegung von Pferden ist nicht nur zur Gesunderhaltung des
Bewegungsapparates und der Körperfunktionen notwendig, sondern auch um das
Wohlbefinden und die Ausgeglichenheit der Pferde zu steigern.
[Horse husbandry systems with close-by discharge are considered to be a very livestock-
friendly housing form, as they offer a certain movement opportunity for the
animals. The aim of the present study was to examine how different movement and
space offerings affect the movement activities of horses in a group horse husbandry
with close-by discharge, and whether the discharge provides itself an adequate
incentive for movement. The impact that the form or rather intensity of movement has
on the wellbeing of the animals was also established.
Most of the horses held in Germany spend most of the day in the stable, although it is
meanwhile known that horses under natural housing conditions are 12 to 16 hours of
the day in motion. Therefore the improvement of stable housing systems applies a
special interest.
For this purpose, 24 warmblood mares, aged from 1½ to 3½ years, were studied in
single and group discharge husbandry systems from September 2004 until October
2005. Six horses formed an experimental group. In every group five variants of approximately
three weeks were proceeded. Thereby the group husbandry was supplemented
with three different additional movement opportunities (2 h pasture / day,
2 h non-grassy pasture land / day, 1 h free range horse walker / day). In the single
discharge husbandry (single box with 45 sq. m-large close-by discharge) and in one
experimental variant of the group husbandry got the horses, however, offered no additional
movement outside the husbandry system. The group husbandry system itself
was marked by the spatial division of the functional areas (lying, eating, drinking,
moving) and the close-by discharge measured 270 sq. m. In an additional phase of
the study, and expansion of the permanently accessible close-by discharge to
540 sq. m was found.
The movement activity was documented with pedometers attached respectively to
one hind leg of the horse and a supplementary analysis of video documentation. To
evaluate the stress exposure measurements of heart frequency variability (parameters
HF and SD2) and of the faecal cortisol metabolite concentration were performed.
Summary 195
The interpretation of the movement behaviour showed that additional two hours of
free movement on a pasture led to a significant increase in the average movement
activity (149.6 min / day), as well as one hour movement in a horsewalker did
(173.0 min / day). The non-grassy pasture land, however, didn’t inspire the horses of
the group husbandry to increased movement (131.6 min / day), but sometimes even
caused a decrease in movement activity. In the group discharge husbandry without
additional movement opportunities the movement activity was also low
(125.8 min / day), and during the single discharge husbandry without additional
movement the horses showed the least movement activity (102.3 min / day).
In analysing only the movement time in the stable system was no significant impact
of the additional movement outside the housing system to the rest of locomotion
ascertainable.
As well an expansion of the close-by stable discharge in the group husbandry system
had no increasing influence on the movement behaviour of the horses.
The stress exposure of the horses was least in the variations of group husbandry
with two hours on a pasture (SD2: 82.9 ms; cortisol metabolites: 29.0 nmol / kg faeces)
as well as one hour of movement in a free range horse walker (SD2: 99.2 ms;
cortisol metabolites: 27.7 nmol / kg faeces). The studies showed a rise in stress in
group husbandry with two hours of movement on a non-grassy pasture land without
feeding opportunity (SD2: 101.3 ms; cortisol metabolites: 39.6 nmol / kg faeces) as
well as in the variation of the group husbandry without additional movement offerings
(SD2: 113.3 ms; cortisol metabolites: 38.4 nmol / kg faeces). Judging from the mean
of the group the horses had a very high stress exposure in the variation of the single
husbandry without additional movement offerings (SD2: 123.8 ms; cortisol metabolites:
37.5 nmol / kg faeces). But a comparison of the group and single husbandry in
terms of the heart frequency variability showed that alltogether 70 % of the horses
experienced less stress if hold in a group. However, some horses (30 %) showed
reducing stress in the single husbandry, whereas here the influence of social hierarchy
seems to play a decisive role.
196 Summary
In consequence of the examination of several measuring parameters (both for stressand
for movement behaviour) parallel aligned tendencies become apparent in the
experimental variants, however, is a unique weighting of the parameters not possible.
Thus, the methodological approach of this study is to be regarde as very positive and
necessary, since the data always vary with some fluctuations by external influences.
In general it can be established that discharge husbandry systems offer some incentive
for the horse to move, but with a maximum of four hours (overall 62 – 248 min) of
movement per day, the daily proportion of movement was much less than, for example,
in the case of wild horses or year-round pasture keeping. Thus, if no additional
movement incentives and possibilities are offered, the discharge husbandry system
doesn’t cover the movement needs of the horse despite separate functional areas
and a large outside discharge.
Additional movement is not only necessary to keep the musculoskeletal system and
bodily functions of the horse healthy, but also to ensure the horse’s well being and
mental balance.] |
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Equine Behaviour @ team @ |
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5660 |
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Author |
Streit, S.; Zeitler-Feicht, M. H.; Dempfle, L. |
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Gibt es in der Gruppenhaltung von Pferden bei der Abruffütterung am Automaten mehr Auseinandersetzungen als bei der Fütterung in Fressständen? [Keeping horses in groups, are there more confrontations when feeding is done with automatic feeding systems than with feeding stalls?] |
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2008 |
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KTBL-Schriften |
Abbreviated Journal |
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471 |
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Das Droh- und Meideverhalten von 270 Pferden wurde im Fressbereich von 10 Offenlaufställen
mit Fressständen und 11 Offenlaufställen mit computergesteuerten Abrufstationen
anhand von visuellen kontinuierlichen Direktbeobachtungen erfasst. Diese erfolgten je Betrieb
über einen 24-Stunden-Tag, der nach dem Tortenstückverfahren (6x4 Stunden) zusammengesetzt
war.
Insgesamt wurden 6297 agonistische Verhaltensweisen in, vor und hinter den
Fütterungseinrichtungen registriert (Meiden 40,6 %, Verdrängen 12,8 %, Beißen/ Hinterhandschlag/
Angehen 12,7 % und Drohen/ Drohbeißen/ Hinterhanddrohen 33,9 %). In den
Futterstationen wurden 22,5 % dieses Verhaltens beobachtet, vor und hinter den Futterstationen
77,5 %. Bei den Betrieben mit Fressständen fanden 31 % der agonistischen Verhaltensweisen
in den Ständen statt, bei den Betrieben mit Abruffütterung 21 %.
Der Einfl uss des einzelnen Betriebes (innerhalb Fütterungssystem) auf die agonistischen
Verhaltensweisen vor und hinter den Fütterungseinrichtungen war signifi kant. Die Auswertung
ergab, dass Drohgesten im Wartebereich von Abrufstationen häufi ger auftreten
als in dem von Fressständen. Demgegenüber können Pferde in Abrufstationen ungestörter
fressen. Insgesamt betrachtet war jedoch die Anzahl an sozionegativen Interaktionen im
Bereich der Futtereinrichtungen bei beiden Fütterungssystemen gering. Die agonistischen
Verhaltensweisen wurden zusätzlich noch von der Heumenge und dem Konstitutionstyp
beeinfl usst.
Der Betrieb erwies sich als maßgeblicher Einfl ussfaktor. Als Resümee ergibt sich, dass
bei ordnungsgemäßer Gruppenhaltung mit fachgerechtem Management beide Fütterungssysteme
für Pferde im Offenlaufstall geeignet sind.
[The threatening and avoiding behaviour of 270 horses living in run-out sheds was observed
at 10 stables with feeding stalls and at 11 stables with automatic feeding systems for hay
and concentrates. Every group of horses was observed on five succeeding days visually
and immediately for 6 sessions, each of 4 hours. These 6 slices form together 24 hours, a
complete day.
Altogether, 6297 agonistic behaviour patterns were registered in front of, inside and
behind the feeding stations (avoiding behaviour 40.6 %, edging out of others 12.8 %,
Auseinandersetzungen an automatischer Abruffütterung und Fressständen
KTBL-Schrift 471 79
biting/rear leg kicking/charging 12.7 % und threatening/biting threats/rear leg kicking
threats 33.9 %). 22.5 % of these types of behaviour were recorded in the feeding stations,
77.5 % together in front and behind of these. In the stables with feeding stalls there were
31 % of the observed threatening gestures inside the feeding stations, in the stables with
automatic feeders only 21 %.
The individual farm showed signifi cant infl uence on the modes of agonistic behaviour
in front and behind the feeding facilities. Threatening gestures happen more often in the
waiting area of automatic feeders than in that of feeding stalls. On the other hand horses
in computer controlled systems will be less disturbed at eating. All together the number
of negative interactions in the feeding area at both feeding systems was relatively low.
In addition the agonistic behaviour was infl uenced by the quantity of hay and the constitutional
typ of the horses.
Because of the management of the individual stable exercises the most substantial
infl uence on the behaviour of the horses, it can be said, that, correct group keeping with
professional management provided, both feeding systems are suitable for horses in run-in
sheds.] |
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Equine Behaviour @ team @ |
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5763 |
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Author |
Whitehead , H. |
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Title |
Analyzing Animal Societies. Quantitative Methods for Vertebrate Social Analysis |
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2008 |
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University of Chicago Press |
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chicago |
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EAN: 9780226895246 |
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Equine Behaviour @ team @ |
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5838 |
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Author |
Krösbacher, A. E. |
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Title |
Das Arabische Vollblut: Eine kontrovers diskutierte Rasse: Was steckt wirklich hinter der Zucht dieser edlen Pferde? |
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Bachelor's thesis |
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University for Veterinarian Medicine Vienna |
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Vienna |
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6544 |
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Smith, B.R.; Blumstein, D.T. |
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Title |
Fitness consequences of personality: a meta-analysis |
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2008 |
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Behavioral Ecology |
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Behav. Ecol. |
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19 |
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2 |
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448-455 |
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The study of nonhuman personality capitalizes on the fact that individuals of many species behave in predictable, variable, and quantifiable ways. Although a few empirical studies have examined the ultimate consequences of personality differences, there has been no synthesis of results. We conducted a formal meta-analysis of published studies reporting fitness consequences of single personality dimensions to identify general trends across species. We found bolder individuals had increased reproductive success, particularly in males, but incurred a survival cost, thus, supporting the hypothesis that variation in boldness was maintained due to a “trade-off” in fitness consequences across contexts. Potential mechanisms maintaining variation in exploration and aggression are not as clear. Exploration had a positive effect only on survival, whereas aggression had a positive effect on both reproductive success and, not significantly, on survival. Such results would suggest that selection is driving populations to become more explorative and aggressive. However, limitations in meta-analytic techniques preclude us from testing for the effects of fluctuating environmental conditions or other forms of selection on these dimensions. Results do, however, provide evidence for general relationships between personality and fitness, and we provide a framework for future studies to follow in the hopes of spurring more in-depth, long-term research into the evolutionary mechanisms maintaining variation in personality dimensions and overall behavioral syndromes. We conclude with a discussion on how understanding and managing personality traits may play a key role in the captive breeding and recovery programs of endangered species. |
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10.1093/beheco/arm144 |
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Equine Behaviour @ team @ |
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5226 |
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