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Author |
Merkies, K.; Isensee, A.; MacGregor, H.; Koenig von Borstel, U.; Tucker, A.; Carson. J.; Bergeron, R. |
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Title |
Influence of psychological and physiological arousal in humans on horse heart rate and behaviour |
Type |
Conference Article |
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Year |
2012 |
Publication  |
Proceedings of the 2. International Equine Science Meeting |
Abbreviated Journal |
Proc. 2. Int. Equine. Sci. Mtg |
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Volume |
in press |
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Keywords |
horse-human interaction, heart rate, behaviour, human nervousness |
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Abstract |
The interaction of horses with humans is a dynamic state, but it is not clearly understood how horses perceive humans. Nervousness is transmissible from humans to horses indicated by increased horse heart rate (HR), however no studies have investigated whether horses can differentiate between humans who are physiologicallystressed (eg. after exercising) as opposed to psychologically-stressed (eg. feeling nervous/afraid). Horses (N=10) were randomly subjected to each of four treatments: 1) no human [control], 2) a calm human comfortable around horses [CALM; N=2 humans], 3) a physically-stressed human [PHYS; human exercised to reach 70% of maximum HR; N=2 humans], and 4) a psychologically-stressed human [PSYCH; human who was nervous around horses; N=14 humans]. Humans ranked themselves on a scale of 1-10 for their nervousness around horses. Both humans and horses were equipped with a HR monitor. Behavioural observations of the horses [gait, head position relative to the withers, distance from human, orientation toward human] were recorded live. Horses were allowed to wander loose in a round pen for 5 minutes of baseline recordings, at which time the human subject entered the round pen, stood in the centre and placed a blindfold over his/her eyes. The human remained in the centre of the round pen for an additional 5 minutes. Horse HR during control did not differ from when the human was present in the CALM and PSYCH treatment, and was lower during the PHYS treatment (51a vs 54a vs 55a vs 45b bpm for control, CALM, PSYCH and PHYS respectively; a,b differ p<0.0001). Over the 5 minute test period, horse HR decreased in PHYS and PSYCH (p<0.01) whereas it increased in CALM (p<0.0001). Horse HR decreased with increasing human rank of nervousness around horses (p=0.0156), and horses stood nearer to the human when they faced the human (p<0.0001) regardless of treatment. Horses moved at a faster gait in the control treatment, and their gait was slowest in the PSYCH treatment (p<0.0001), and the horse’s head position was lower in the PHYS and PSYCH treatments compared to CALM or baseline (p< 0.0001). A lower horse head position was positively correlated to a lower horse HR (p<0.0001) and negatively correlated to horse age (p<0.0001). Human HR was affected by treatment, with PHYS having the highest HR (p<0.0001). Human HR increased when the horse was facing away from the human, even though the human was blindfolded (p=0.0395). Overall, horses appear to be influenced by the physiological and psychological state of a human without any direct contact. Horses’ posture does reflect their physiological state. Understanding how horses react to human physiological and psychological states is especially important in equine-assisted activities, where the response of the horse has specific implications for the human participant. |
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Corporate Author |
Isensee, A. |
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Xenophon Publishing |
Place of Publication |
Wald |
Editor |
Krueger, K. |
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978-3-9808134-26 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
5545 |
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Author |
Lynch, J.J.; Fregin, G.F.; Mackie, J.B.; Monroe, R.R.J. |
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Title |
Heart rate changes in the horse to human contact |
Type |
Journal Article |
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Year |
1974 |
Publication |
Psychophysiology |
Abbreviated Journal |
Psychophysiology |
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Volume |
11 |
Issue |
4 |
Pages |
472-478 |
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Keywords |
Animals; Behavior, Animal; Electrocardiography/veterinary; *Heart Rate; Horses/*physiology; Humans; *Social Behavior; *Touch |
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0048-5772 |
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Notes |
PMID:4852234 |
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Call Number |
refbase @ user @ |
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1965 |
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Author |
Hedberg, Y.; Dalin, A.-M.; Ohagen, P.; Holm, K.R.; Kindahl, H. |
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Title |
Effect of oestrous-cycle stage on the response of mares in a novel object test and isolation test |
Type |
Journal Article |
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Year |
2005 |
Publication |
Reproduction in Domestic Animals = Zuchthygiene |
Abbreviated Journal |
Reprod Domest Anim |
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Volume |
40 |
Issue |
5 |
Pages |
480-488 |
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Keywords |
Animals; Behavior, Animal/*physiology; Cross-Over Studies; Diestrus/*physiology; Estrus/*physiology; Female; Heart Rate/*physiology; Horses/*physiology; Questionnaires |
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Abstract |
In various species, sex, hormonal treatments and oestrous-cycle stage have been shown to affect the animal's response in behavioural tests. Few such studies have been performed in the horse. The main aim of the present study was to investigate whether oestrous-cycle stage affects mares' response to a novel object test and isolation test and, in part, to study whether mares, assumed to suffer from oestrous-related behavioural problems, respond differently in these tests when compared with controls. Twelve mares were tested twice, in oestrus and dioestrus, in a crossover design. Seven behavioural and two heart rate variables were measured for the novel object test and two heart rate variables for the isolation test. Oestrous-cycle stage and whether a mare was classified as a 'problem' mare did not affect the mare's response. However, test order, i.e. the cycle stage a mare was tested in first, affected its reaction. This effect could partly be explained by significant differences between test occasions 1 and 2 in three behavioural variables and one heart rate variable (p < 0.05) in the novel object test. The mares explored the novel object more and had a higher mean heart rate in the first test. Exploring the novel object more could largely be attributed to those mares tested in dioestrus first, perhaps indicating that the mares in oestrus were less receptive to the novel object. The reason for the differences between test occasions could be an effect of learning or habituation. |
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Address |
Division of Comparative Reproduction, Obstetrics and Udder Health, Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden. ylva.hedberg@kv.slu.se |
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English |
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ISSN |
0936-6768 |
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Notes |
PMID:16149956 |
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no |
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Call Number |
Equine Behaviour @ team @ |
Serial |
5170 |
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Author |
Arnold, W.; Ruf, T.; Kuntz, R. |
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Title |
Seasonal adjustment of energy budget in a large wild mammal, the Przewalski horse (Equus ferus przewalskii) II. Energy expenditure |
Type |
Journal Article |
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Year |
2006 |
Publication |
The Journal of experimental biology |
Abbreviated Journal |
J Exp Biol |
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Volume |
209 |
Issue |
Pt 22 |
Pages |
4566-4573 |
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Keywords |
Animals; Animals, Wild/*physiology; Body Temperature; Body Temperature Regulation; Eating; *Energy Metabolism; Female; Heart Rate; Horses/*physiology; Male; Motor Activity; Pregnancy; Reproduction; *Seasons |
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Abstract |
Many large mammals show pronounced seasonal fluctuations of metabolic rate (MR). It has been argued, based on studies in ruminants, that this variation merely results from different levels of locomotor activity (LA), and heat increment of feeding (HI). However, a recent study in red deer (Cervus elaphus) identified a previously unknown mechanism in ungulates--nocturnal hypometabolism--that contributed significantly to reduced energy expenditure, mainly during late winter. The relative contribution of these different mechanisms to seasonal adjustments of MR is still unknown, however. Therefore, in the study presented here we quantified for the first time the independent contribution of thermoregulation, LA and HI to heart rate (f(H)) as a measure of MR in a free-roaming large ungulate, the Przewalski horse or Takhi (Equus ferus przewalskii Poljakow). f(H) varied periodically throughout the year with a twofold increase from a mean of 44 beats min(-1) during December and January to a spring peak of 89 beats min(-1) at the beginning of May. LA increased from 23% per day during December and January to a mean level of 53% per day during May, and declined again thereafter. Daily mean subcutaneous body temperature (T(s)) declined continuously during winter and reached a nadir at the beginning of April (annual range was 5.8 degrees C), well after the annual low of air temperature and LA. Lower T(s) during winter contributed considerably to the reduction in f(H). In addition to thermoregulation, f(H) was affected by reproduction, LA, HI and unexplained seasonal variation, presumably reflecting to some degree changes in organ mass. The observed phase relations of seasonal changes indicate that energy expenditure was not a consequence of energy uptake but is under endogenous control, preparing the organism well in advance of seasonal energetic demands. |
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Address |
Research Institute of Wildlife Ecology, University of Veterinary Medicine, Vienna, Savoyenstrasse 1, 1160 Vienna, Austria. walter.arnold@vu-wien.ac.at |
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English |
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0022-0949 |
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Notes |
PMID:17079726 |
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Serial |
1782 |
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Author |
Munsters, C.C.B.M.; Visser, K.E.K.; van den Broek, J.; Sloet van Oldruitenborgh-Oosterbaan, M.M. |
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Title |
The influence of challenging objects and horse-rider matching on heart rate, heart rate variability and behavioural score in riding horses |
Type |
Journal Article |
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Year |
2012 |
Publication |
The Veterinary Journal |
Abbreviated Journal |
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Volume |
192 |
Issue |
1 |
Pages |
75-80 |
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Keywords |
Horse-rider interaction; Horse compliance; Welfare; Heart rate; Behaviour score |
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Abstract |
A good horse-rider ‘match’ is important in the context of equine welfare. To quantify the influence of repetition and horse-rider matching on the stress of horses encountering challenging objects, 16 Warmblood horses were ridden in a test-setting on three occasions. On each occasion the horse was ridden by a different rider and was challenged by three objects (A–C). Heart rate (HR), heart rate variability (HRV) of horse and rider, and behaviour score (BS) of the horse were obtained for each object and as a total for each test. The horse-rider interaction was evaluated with each combination and assessed as ‘matching’ or ‘mismatching’, and the horses were categorised as ‘compliant’, ‘partly-compliant’ or ‘non-compliant’. Horses exhibited a decreased HR (P = 0.015) and a decreased BS (P = 0.004) within and across different tests. ‘Matching’ horse-rider combinations exhibited less stress as indicated by reduced HR (‘match’ 69 ± 10 vs. ‘mismatch’ 72 ± 9, P = 0.001) and BS (‘match’ 1.9 ± 1.1 vs. ‘mismatch’ 3.8 ± 1.4, P = 0.017) of the horse. ‘Compliant’ (68 ± 8, P < 0.001) and ‘partly-compliant’ (71 ± 9, P = 0.002) horses had significantly lower HR than ‘non-compliant’ (75 ± 9) animals. The findings of the study indicate that HR and BS measurements support a subjective ‘match’ diagnosis and HR measurement may be a valuable tool in assessing horse compliance. |
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ISSN |
1090-0233 |
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Equine Behaviour @ team @ |
Serial |
5636 |
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Author |
Keeling, L.J.; Jonare, L.; Lanneborn, L. |
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Title |
Investigating horse–human interactions: The effect of a nervous human |
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Journal Article |
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Year |
2009 |
Publication |
The Veterinary Journal |
Abbreviated Journal |
Vet J |
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Volume |
181 |
Issue |
1 |
Pages |
70-71 |
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Keywords |
Behaviour; Reactivity; Heart rate; Accidents; Equitation |
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Abstract |
The heart rates (HR) of horses and the people leading them (10 horses, 20 people), and riding them (17 horses, 17 people), were recorded in an indoor arena. The horses were Swedish leisure horses of mixed ages, sex and breed. All except two of the people were female and all were of mixed age and riding experience. Each horse–human pair walked or rode between points A and B (30 m) four times on each test occasion. However, just before the fourth pass, participants were told that an umbrella would be opened as they rode, or led, the horse past the assistant. The umbrella was not opened, so this pass was no different to the previous control occasions, but nevertheless there was an increase in HR for both the person (leading, P = 0.06; riding, P < 0.05) and the horse (being led, P < 0.05; being ridden, P < 0.05). The findings indicate that analysis of HR recorded simultaneously from people and horses under different experimental handling or riding conditions presents a useful tool to investigate horse–human interactions. |
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1090-0233 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
5908 |
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Author |
Minero, M.; Canali, E.; Ferrante, V.; Verga, M.; Odberg, F.O. |
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Title |
Heart rate and behavioural responses of crib-biting horses to two acute stressors |
Type |
Journal Article |
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Year |
1999 |
Publication |
The Veterinary Record |
Abbreviated Journal |
Vet. Rec. |
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Volume |
145 |
Issue |
15 |
Pages |
430-433 |
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Keywords |
Acute Disease; Animals; Behavior, Animal/*physiology; Female; Heart Rate/*physiology; Horse Diseases/*physiopathology; Horses/*physiology/psychology; Male; Stereotyped Behavior/*physiology; Stress/physiopathology/psychology/*veterinary |
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Abstract |
The heart rate and behaviour of 14 adult saddle horses, eight crib-biters and six normal controls, were investigated. Initially, the relationship between crib-biting and heart rate was investigated while the horses were undisturbed. The horses were tested when restrained with a lip twitch, and assessed when they were exposed suddenly to the rapid inflation of a balloon. The heart rate of the crib-biters during crib-biting was lower than during other behaviours. The crib-biters had a higher overall mean heart rate (P<0.05) suggesting that they may have had a higher basal sympathetic activity. After the application of the twitch, all the horses had a transient increase in heart rate which returned to basal values more rapidly in the crib-biters. The crib-biters were less reactive to the lip twitch, five of the six investigated remaining calm, and after the release of the twitch, they spent more time nibbling (P<0.05) than the control horses. The crib-biters reacted more strongly to the inflation of the balloon (three of the six reacted), and after it had been inflated they spent more time walking in the box. |
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Address |
Instituto di Zootecnica Veterinaria, Universita degli Studi di Milano, Italy |
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English |
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ISSN |
0042-4900 |
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Notes |
PMID:10755589 |
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no |
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Call Number |
refbase @ user @ |
Serial |
1921 |
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Author |
Waran, N.K.; Robertson, V.; Cuddeford, D.; Kokoszko, A.; Marlin, D.J. |
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Title |
Effects of transporting horses facing either forwards or backwards on their behaviour and heart rate |
Type |
Journal Article |
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Year |
1996 |
Publication |
The Veterinary Record |
Abbreviated Journal |
Vet. Rec. |
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Volume |
139 |
Issue |
1 |
Pages |
7-11 |
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Keywords |
Animals; *Behavior, Animal; Female; *Heart Rate; *Horses; Male; Posture/*physiology; *Transportation |
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Abstract |
The effects of transporting horses facing either forwards or backwards were compared by transporting six thoroughbred horses in pairs in a lorry on one journey facing in the direction of travel, and on another journey facing away from the direction of travel, over a standard one-hour route. Heart rate monitors were used to record their heart rate before, during and after the journey and the horses' behaviour was recorded by scan sampling each horse every other minute. The average heart rate was significantly lower (P < 0.05) when the horses were transported facing backwards, and they also tended to rest on their rumps more (P = 0.059). In the forward-facing position, the horses moved more frequently (P < 0.05) and tended to hold their necks in a higher than normal position and to vocalise more frequently (P = 0.059). During loading the average peak heart rate was 38 bpm lower (P < 0.05) when the horses were backed into the horse box for rear-facing transport than when they were loaded facing forwards. However, there was no difference between transport facing forwards or backwards in terms of the peak unloading heart rate, or the average heart rate during loading or unloading. The horses seemed to find being transported less physically stressful when they were facing backwards than when they were facing forwards. |
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Address |
Institute of Ecology and Resource Management, University of Edinburgh, School of Agriculture |
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English |
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0042-4900 |
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Notes |
PMID:8966985 |
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no |
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Call Number |
refbase @ user @ |
Serial |
1938 |
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Author |
Zeitler-Feicht, M. H.; Streit, S.; Dempfle, L. |
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Title |
Automatic feeding systems for horses in group housing systems with regard to animal welfare. Part 1: Feeding stalls versus automatic feeding systems |
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Journal Article |
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Year |
2010 |
Publication |
Tierärztliche Praxis Großtiere |
Abbreviated Journal |
Tierärztl Prax |
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Volume |
38 |
Issue |
G |
Pages |
363-370 |
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Keywords |
Pferd, Fütterungseinrichtungen, soziale Interaktionen, Herzfrequenz, Verletzungsrisiko, Betriebseinfluss [Horse, feeding stations, social interactions, heart rate, risk of injury, individual farm management] |
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Abstract |
Gegenstand und Ziel: Überprüfung der Tiergerechtheit von Abrufstationen
für Kraftfutter und Heu in der Gruppenhaltung von Pferden anhand
ethologischer und physiologischer Parameter im Vergleich zu konventionellen
Fressständen. Material und Methoden: Die Verhaltensbeobachtungen
fanden in 11 bzw. 10 Offenlaufställen mit Abrufstationen
bzw. Fressständen statt. 270 Pferde wurden individuell unterschieden.
Untersuchungsparameter waren: Drohverhalten mit und ohne Verletzungsrisiko,
Meideverhalten, Verdrängung aus dem Fressstand sowie
Herzfrequenz und Integumentverletzungen. In jedem Betrieb erfolgten
kontinuierliche Direktbeobachtungen für je einen 24-Stunden-Tag (Tortenstückverfahren).
Ergebnisse: Im Wartebereich der Abrufautomaten
traten signifikant mehr Drohgesten ohne bzw. mit Verletzungsgefahr je
Pferd und Tag (8,6 bzw. 3,0) auf als im Wartebereich der Fressstände
(3,4 bzw. 0,9). Demgegenüber konnten die Pferde in Abrufstationen
(1,4 Drohgesten je Pferd und Tag) ungestörter fressen als in Fressständen
(3,2 Drohgesten je Pferd und Tag). Insgesamt betrachtet ergab sich
jedoch bei beiden Fütterungssystemen eine geringe Anzahl an sozionegativen
Interaktionen im Bereich der Futtereinrichtungen. Die Herzfrequenz
lag im Warteareal im Durchschnitt im physiologischen Bereich
(44,59 ± 11,73 Schläge/min). Integumentverletzungen im Zusammenhang
mit dem Fütterungssystem traten nicht auf. Der wichtigste Einflussfaktor
auf die Untersuchungskriterien war der Betrieb (Fläche, Konzeption,
Management). Schlussfolgerung: Unter dem Aspekt der Tiergerechtheit
hinsichtlich des Stress- und Verletzungsrisikos durch soziale
Interaktionen eignen sich bei ordnungsgemäßer Gruppenhaltung mit
fachgerechtem Management sowohl Fressstände als auch Abrufstationen
für Pferde im Offenlaufstall.
[Objective: A comparison with regard to animal welfare of feeding
stalls and automatic feeding systems for hay and concentrates in group
housing systems for horses using parameters of ethology and physiology.
Material and method: The observations of animal behaviour took
place in 10 stables with feeding stalls and in 11 stables with automatic
feeding systems. The field around the feeding systems was divided into
three areas with comparable dimensions (waiting area, exit area and
inside of the feeding system). 270 horses were individually observed.
Parameters of research comprised: threatening behaviour with and
without risk of injury, avoiding behaviour, ”chasing away from the feeding
place”, as well as heart rate and injuries of the integument. Every
group of horses was continuously observed for 24 hours. This observation
took place on four different days and comprised six sessions, each
of 4 hours. Results: In the waiting area of the automatic systems there
were significantly more threatening gestures with and without risk of
injuries for each horse and day (8.6 and 3.0, respectively) than in the
waiting area of the feeding stalls. In contrast, the horses could eat more
relaxed in the automatic systems (1.4 threatening gestures for each
horse and day) than in the feeding stalls (3.2 threatening gestures for
each horse and day). All together the number of negative interactions in
the feeding area of both feeding systems was relatively low. The heart
rate was within the physiological range (44,59 ± 11,73 beats/min) in
the waiting area. There were no injuries of the integument in correlation
with the feeding systems. The most important factor of the observation
criteria was the individual group housing system with its different dimension,
conception and management. Conclusion: Under the aspect
of animal welfare both feeding systems are suitable for horses with respect
to the risk of stress and injuries by social interactions and under
the condition of proper group housing with professional management.] |
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Equine Behaviour @ team @ |
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5765 |
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Zeitler-Feicht, M. H.; Streit, S.; Dempfle, L. |
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Title |
Automatic feeding systems for horses in group housing systems with regard to animal welfare. Part 2: Comparison of different automatic feeding systems |
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2011 |
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Tierärztliche Praxis Großtiere |
Abbreviated Journal |
Tierärztl Prax |
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39 |
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G |
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33-40 |
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Pferd, Fütterungssystem, Bauvarianten, soziale Interaktionen, Besuchshäufigkeit, Aufenthaltsdauer, Herzfrequenz, Verletzungsrisiko [Horse, feeding system, different types of construction, social interactions, visiting frequency, duration of stay, heart rate, risk of injury] |
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Abstract |
Ziel: Überprüfung der Tiergerechtheit von in der Bauweise unterschiedlichen
Futterabrufstationen für Pferde in Gruppenhaltung anhand ethologischer
und physiologischer Parameter. Material und Methoden: In 32
Offenlaufställen (452 Pferde) mit computergesteuerten Abrufstationen
für Kraftfutter und Heu erfolgten kontinuierliche Direktbeobachtungen
für je einen 24-Stunden-Tag (Tortenstückverfahren). Erfasst wurden: Aufenthaltsdauer,
Besuchshäufigkeit, Droh- und Meideverhalten im Fütterungsbereich,
Blockaden sowie Herzfrequenz und Integumentverletzungen.
Ergebnisse: Eine Durchlaufstation reduzierte die Zahl der Auseinandersetzungen
im Fütterungsbereich signifikant. Ansonsten erhöhten die
für das fressende Pferd tiergerechten Varianten (Fressstand mit Eingangssperre,
ohne Austreibehilfe) Besuchshäufigkeit und Aufenthaltsdauer und
steigerten somit auch die Anzahl an Drohgesten je Tier und Tag. Insgesamt
betrachtet kann jedoch die Anzahl an sozionegativen Interaktionen
im Fütterungsbereich der Abrufstationen als relativ gering eingestuft
werden. Die Herzfrequenz lag im Warteareal bei den meisten Pferden im
physiologischen Bereich (45,1 ± 12,42 Schläge/min), erhöhte sich jedoch
in der Abrufstation um ca. 20 Schläge/min. Einige Tiere zeigten möglicherweise
stressbedingt kurzfristig auffallend hohe Werte (≥ 100 Schläge/
min). Integumentverletzungen im Zusammenhang mit dem Fütterungssystem
traten nicht auf. Der wichtigste Einflussfaktor auf die Untersuchungskriterien
war der Betrieb (Fläche, Konzeption, Management).
Schlussfolgerung: Durchlaufstationen sind pferdegerechter als Rücklaufstationen.
Nicht tiergerecht sind Stationen mit stromführender Austreibehilfe.
Weitere bauliche Unterschiede der derzeitigen Futterabrufstationen
dürften eher von untergeordneter Bedeutung sein, vor allem da
Flächengebot und Konzeption der Offenstallanlage sowie das Management
die überprüften Kriterien zur Tiergerechtheit maßgeblich beeinflussen.
Untersuchungen zur Abklärung der Ursache für die vereinzelt aufgetretenen
sehr hohen Herzfrequenzwerte sollten durchgeführt werden.
Objective: Comparison with regard to animal welfare of different automatic
feeding systems for hay and concentrate in group housing systems
for horses using parameters of ethology and physiology. Material and
methods: Parameters of research comprised: duration of stay, frequency
of visit, threatening behaviour with and without risk of injury, and avoiding
behaviour as well as heart rate and injuries of the integument. 452
horses were observed at the feeding area of 32 run-out-sheds. Every group
of horses was continuously observed following the pie chart system for
24 hours. Results: The “walk-through” station significantly reduced the
number of conflicts in the feeding area, whereas those systems which are
appropriate for the feeding horses (feeding station with access barrier and
without stimulation device by electric shock) led to a higher frequency of
visits and a longer duration of stay resulting in more threatening gestures.
However, the number of negative interactions in the feeding area of the
feeding systems can all together be classified as relatively insignificant.
The heart rate was within the physiological range (45.1 ± 12.42 beats/min)
in the waiting area, but increased by approximately 20 beats/min on average
within the feeding station. Some horses showed a very high heart rate
(≥ 100 beats/min) while entering the feeding station, possibly stress-related.
There were no injuries of the integument associated with the feeding
systems. The most important factor of the observation criteria was the
individual group housing system with its different dimensions, conception
and management. Conclusion: “Walk-through” stations are better than
”walk-back” stations with regard to animal welfare. Likewise, automatic
feeding stations with a current-carrying stimulation device are not supportive
of good welfare. The other differences between the constructions
of feeding stations of present systems are probably of less importance, particularly
as it was shown that the stable (management, stable area, conception)
had a significant influence on the surveyed parameters. Investigations
to obtain information on the cause for the sporadic occurrence of
very high heart rate values should be undertaken.] |
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Equine Behaviour @ team @ |
Serial |
5766 |
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