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| Author | König, H.E.; Wissdorf, H.; Probst, A.; Macher, R.; Voß, S.; Polsterer, E. | ||||
| Title | Considerations about the function of the mimic muscles and the vomeronasal organ of horses during the Flehmen reaction | Type | Journal Article | ||
| Year | 2005 | Publication | Pferdeheilkunde | Abbreviated Journal | |
| Volume | 21 | Issue | 4 | Pages | 297-300 |
| Keywords | Anatomy; Behaviour; Flehmen reaction; Horse; Vomeronasal organ | ||||
| Abstract | Additional to the olfactory epithelium, the equine vomeronasal organ serves to the perception of odorous substances and specially for pheromones. In a middle-size horse this organ has an extension in length from an imaginary transverse plane about 10 cm caudally the nostrils to a transverse plane through the middle of the second premolar tooth. During the Flehmen reaction the levator labii superior, nasolabial, caninus and lateralis nasi muscles contract. The upper lip and the tip of the nose are lifted. The opening of the nostrils is narrowed, caused by the convergence of the plate and horn of the alar cartilage. In this manner in case of Flehmen reaction air is directly conducted towards the opening of the vomeronasal organ into the nasal cavity during inspiration. During the “Flehmen” horses assume a characteristic posture. | ||||
| Address | Department für Pathobiologie (Institut für Anatomie), Veterinärmedizinische Universität Wien, Veterinärplatz 1, A-1210 Wien, Austria | ||||
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Export Date: 21 October 2008; Source: Scopus | Approved | yes | ||
| Call Number | Equine Behaviour @ team @ | Serial | 4554 | ||
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| Author | Francis-Smith, K.; Wood-Gush, D.G.M. | ||||
| Title | Copropgagia as seen in thoroughbred foals | Type | Journal Article | ||
| Year | 1977 | Publication | Equine veterinary journal | Abbreviated Journal | Equine Vet J |
| Volume | 9 | Issue | 3 | Pages | 155-157 |
| Keywords | animal; article; coprophagy; defecation; eating; female; horse; horse disease; human; mastication | ||||
| Abstract | Four Thoroughbred foals were seen to quickly eat part of the faeces deposited by their own dams on some 40 per cent of the mare-defaecating occasions observed between the second and fifth week after birth. They did not do it before or after this period. This behaviour was thought to be a feeding pattern which formed a normal part of the foal's development. | ||||
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| Notes |
from Professor Hans Klingels Equine Reference List | Approved | no | ||
| Call Number | Serial | 1090 | |||
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| Author | Boyce, P.N.; McLoughlin, P.D. | ||||
| Title | Ecological Interactions Involving Feral Horses and Predators: Review with Implications for Biodiversity Conservation | Type | Journal Article | ||
| Year | 2021 | Publication | The Journal of Wildlife Management | Abbreviated Journal | Jour. Wild. Mgmt. |
| Volume | n/a | Issue | n/a | Pages | |
| Keywords | apparent competition; artificial selection; community ecology; conservation; feral horse (Equus ferus caballus); life history; predator-prey dynamics | ||||
| Abstract | ABSTRACT For many ecosystems, feral horses are increasingly becoming an important if not dominant component of ungulate biomass and hence influence on community dynamics. Yet we still know little of how horses contribute to key ecological interactions including predator-prey and indirect competitive relationships at a community level. Notably, feral species like horses can exhibit life-history traits that differ from that of native (mainly artiodactyl) herbivore competitors. Artificial selection for traits like increased, early, or extended reproduction that have yet to be reversed by natural selection, coupled with naturally selected differences in anatomy and behavior, in addition to unique management objectives for horses compared to other species, means that the dynamics of feral horse populations are not likely to align with what might be expected of other large herbivores. Unexpected population dynamics and inherent biological asymmetries between native ungulates and feral horses may therefore influence the former via direct competition for shared resources and through enemy-mediated interactions like apparent competition. In several localities feral horses now co-exist with multiple native prey species, some of which are in decline or are species at risk. Compounding risks to native species from direct or indirect competitive exclusion by horses is the unique nature and socio-political context of feral horse management, which tends towards allowing horse populations to be limited largely by natural, density-dependent factors. We summarize the inherent asymmetries between feral horse biology and that of other ungulate prey species with consequences for conservation, focusing on predator-prey and emerging indirect interactions in multi-prey systems, and highlight future directions to address key knowledge gaps in our understanding of how feral horses may now be contributing to the (re)structuring of food webs. Observations of patterns of rapid growth and decline, and associated skews in sex ratios of feral horse populations, indicate a heightened potential for indirect interactions among large ungulate prey species, where there is a prevalence of feral horses as preferred prey, particularly where native prey are declining. In places like western North America, we expect predator-prey interactions involving feral horses to become an increasingly important factor in the conservation of wildlife. This applies not only to economically or culturally important game species but also at-risk species, both predators (e.g., wolves [Canis lupus], grizzly bears [Ursus arctos]) and prey (e.g., woodland caribou [Rangifer tarandus caribou]), necessitating an ecological understanding of the role of horses in natural environments that goes beyond that of population control. ? 2021 The Wildlife Society. | ||||
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| Publisher | John Wiley & Sons, Ltd | Place of Publication | Editor | ||
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| ISSN | 0022-541x | ISBN | Medium | ||
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https://doi.org/10.1002/jwmg.21995 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 6642 | ||
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| Author | Gleerup, K.B.; Lindegaard, C. | ||||
| Title | Recognition and quantification of pain in horses: A tutorial review | Type | Journal Article | ||
| Year | 2016 | Publication | Equine Veterinary Education | Abbreviated Journal | Equine Vet Educ |
| Volume | 28 | Issue | 1 | Pages | 47-57 |
| Keywords | horse; pain evaluation; pain scale; pain behaviour; pain face | ||||
| Abstract | Summary Pain management is dependent on the quality of the pain evaluation. Ideally, pain evaluation is objective, pain-specific and easily incorporated into a busy equine clinic. This paper reviews the existing knowledge base regarding the identification and quantification of pain in horses. Behavioural indicators of pain in horses in the context of normal equine behaviour, as well as various physiological parameters potentially useful for pain evaluation, are discussed. Areas where knowledge is sparse are identified and a new equine pain scale based on results from all reviewed papers is proposed. Finally, the most important considerations in relation to the implementation of a pain scale in a hospital setting are discussed. | ||||
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| Publisher | American Medical Association (AMA) | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
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| ISSN | 0957-7734 | ISBN | Medium | ||
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| Notes |
https://doi.org/10.1111/eve.12383 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 6705 | ||
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| Author | Dyson, S. | ||||
| Title | The Ridden Horse Pain Ethogram | Type | Journal Article | ||
| Year | 2022 | Publication | Equine Veterinary Education | Abbreviated Journal | Equine Vet Educ |
| Volume | 34 | Issue | 7 | Pages | 372-380 |
| Keywords | horse; lameness; canter; behaviour; saddle-fit; rider skill | ||||
| Abstract | Summary The Ridden Horse Pain Ethogram (RHpE) comprises 24 behaviours, the majority of which are at least 10 times more likely to be seen in lame horses compared with non-lame horses. The observation of >=8/24 behaviours is likely to reflect the presence of musculoskeletal pain, although some lame horses score <8/24 behaviours. A marked reduction in RHpE scores after resolution of lameness using diagnostic anaesthesia proves a causal relationship between pain and RHpE scores. Horses should be assessed for approximately 10?min in walk, trot (including 10?m diameter circles), canter and transitions. The validity of the RHpE has been verified for use in horses which perform dressage-type movements, and which have been trained to work with the front of the head in a vertical position. It has not, as yet, been used in horses while jumping, racehorses, western performance or endurance horses. The RHpE provides a valuable tool for riders, trainers, veterinarians and other equine professionals to recognise the presence of musculoskeletal pain, even if overt lameness cannot be recognised. Riders with a higher skill-level may improve gait quality, but cannot obscure behavioural signs of pain, although specific behaviours may change. Tight saddle tree points, the rider sitting on the caudal third of the saddle and rider weight may influence RHpE scores. Accurate application of the RHpE requires training and practice. The RHpE is a powerful tool for the assessment of ridden horses and the identification of likely musculoskeletal pain. Such pain merits further investigation and treatment, to improve equine welfare and performance. The RHpE provides an additional means of evaluating the response to diagnostic anaesthesia. It provides a mechanism for client education and a diplomatic way of communicating with clients about equine discomfort related to saddle-fit, rider size, their position in the saddle and ability to ride in balance. | ||||
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| Publisher | American Medical Association (AMA) | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
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| ISSN | 0957-7734 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes |
https://doi.org/10.1111/eve.13468 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 6693 | ||
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| Author | Winwright, D.; Elston, H.; Hall, C. | ||||
| Title | The impact of paddock design on the behaviour of the domestic horse (Equus caballus) | Type | Conference Article | ||
| Year | 2015 | Publication | Proceedings of the 3. International Equine Science Meeting | Abbreviated Journal | Proc. 3. Int. Equine. Sci. Mtg |
| Volume | Issue | Pages | |||
| Keywords | Horses, social behaviour, management, housing, paddock | ||||
| Abstract | The design of a captive environment should facilitate the expression of the natural behavioural repertoire of the species concerned. The domestic horse (Equus caballus) is a social, herd dwelling species that is often housed in isolation from con-specifics or kept in groups in paddock enclosures. Although the latter allows for social interaction and does not restrict movement per se, it may not promote natural activity patterns or group cohesion. The aim of the current study was to assess the impact of two different paddock designs on the behaviour of a stable group of horses (n=6: 2 mares, 4 geldings). The paddock designs tested were adjacent and grassed similarly, but configured differently. A central paddock (75 x 75m) designated NT, was surrounded by a track 1.6-5.5m wide, designated T. The horses were turned out in their group into T or NT for 3 consecutive days. Their behaviour was recorded for one hour three times each day (10.00, 13.00, 16.00 hrs). Within each observation period of one hour focal sampling was used, each individual horse being observed for a 10 minute period. They were then moved to the other enclosure type for a further 3 consecutive days, followed by a repeat of each condition. When turned out the horses were fitted with a global positioning system device (Garmin Forerunner 305) to monitor distance travelled and speed for the period 10.00-17.00 hrs. The mean percentage of time spent in each behavioural state (standing alert, standing resting, walk/trot, grazing, lying, social interaction) during the periods observed was calculated. Behaviour during social interactions was classified as either affiliative (approach, follow, friendly contacts, mutual grooming) or agonistic (approach and retreat, bite, chase, head threat). The horses travelled significantly further in T than in NT (paired samples t-test: t (5) = 11.74, p<0.001) and moved significantly faster (Wilcoxon signed rank test: z = -2.21, p=0.03). See Table 1. When the percentage of time spent in each behavioural state in T and NT was compared some significant differences were found. A significantly higher percentage of time was spent active (walking /trotting) in T than in NT (paired samples t-test: t (5) = 5.74, p=0.002). Standing alert was only recorded in T (paired samples t-test: t (5) = 3.48, p=0.02). A significantly higher percentage of time was spent grazing in NT than in T (paired samples t-test: t (5) = -3.58, p=0.016). Significantly more social interaction occurred in T than in NT (paired samples t-test: t (5) = 5.93, p=0.002). See Figure 1. In T, 91% of social interactions were affiliative and 9% agonistic, whereas in NT 29% were affiliative and 71% agonistic. No difference was found in the percentage of time spent standing resting or lying down in T and NT. The benefits of housing horses in groups as opposed to individually have been demonstrated in previous studies. In addition to better satisfying the behavioural needs of the horse it has been found that group housed horses adapt more easily to training and display less undesirable behaviour than those housed individually (Rivera et al. 2002; Søndergaard and Ladewig 2004; Visser et al. 2008). However, individual housing is frequently selected by horse owners in preference to group housing to avoid the risk of injury during agonistic encounters. Fureix et al. (2012) suggest that management practices may well contribute to aggressiveness in horses and that the conditions under which we keep horses should be reviewed. The findings of the present study indicate that the design of the enclosure in which groups of horses are kept affects the nature of social interactions. The T paddock design resulted in reduced intra-group aggression. However, this paddock design also reduced the time spent grazing and increased vigilant behaviour. Although the results demonstrate that a paddock system including tracks may facilitate group cohesion and more natural movement patterns, the long-term impact on behaviour and welfare requires further investigation. References: Fureix C, Bourjade M, Henry S, Sankey C, Hausberger M. (2012). Exploring aggression regulation in managed groups of horses (Equus caballus). Applied Animal Behaviour Science 138: 216-228. Rivera E, Benjamin S, Nielsen B, Shelle J, Zanella AJ. (2002). Behavioural and physiological response of horses to initial training: the comparison between pastured versus stalled horses. Applied Animal Behaviour Science 78: 235–252. Søndergaard E, Ladewig J. (2004). Group housing exerts a positive effect on the behaviour of young horses during training. Applied Animal Behaviour Science 87: 105-118. |
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| Corporate Author | Hall, C. | Thesis | |||
| Publisher | Xenophon Publishing | Place of Publication | Wald | Editor | ; Krueger, K. |
| Language | Summary Language | Original Title | |||
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| ISSN | 978-3-95625-000-2 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes |
Id - | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 5895 | ||
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| Author | Hollenhorst, H.; Weil, S.; Krueger, K. | ||||
| Title | Innovative behavour in horses (Equus caballus) | Type | Conference Article | ||
| Year | 2015 | Publication | Proceedings of the 3. International Equine Science Meeting | Abbreviated Journal | Proc. 3. Int. Equine. Sci. Mtg |
| Volume | Issue | Pages | |||
| Keywords | innovative behavior, age, housing system, horse (Equus caballus) | ||||
| Abstract | Contrary to the widely-spread assumption that horses just have restricted cognitive capacities and are not very flexible in their behaviors, we showed that horses display innovative behavior and even make use of tools (Krueger 2015, Krueger et al. 2015). These findings derive from a database (http://innovative-behaviour.org/) the Equine behavior team managed in the past two years. Some horses did not only show single innovations, but several different innovations. The number of innovations per individual varied from 1 to 10. 20 % of all innovative horses in the database showed more than one innovation. These individuals can be called the ‘true innovators’. Moreover innovations were dependent on age. Young horses were more innovative than older ones, whereby horses at the age of five to nine years were the most innovative. When considering the housing system innovative horses in a single housing (inside box, outside box, paddock box) had a slight majority towards horses in group housing (open stable, active stable, pasture day and night). But given the fact that ratings on housing system frequencies state 95% of the horses to be kept in individual housing, innovations in individual housing are rare. Nevertheless, horses kept in inside boxes without a window, opened doors more often than all other horses. Aside from this effect, housing systems did not trigger the frequency of innovative behavior. Innovations for gaining freedom and innovations in general were widespread among horses with daily access to pasture and daily contact with conspecifics. Innovations for gaining food were not more likely to occur in horses that were fed little amounts of roughage. In conclusion, the housing of horses does not seem to be the primary catalyst for developing innovative behavior in horses. What makes a “true innovator” in horses, in addition to age, remains to be seen. | ||||
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| Corporate Author | Hollenhorst, H. | Thesis | |||
| Publisher | Xenophon Publishing | Place of Publication | Wald | Editor | ; Krueger, K. |
| Language | Summary Language | Original Title | |||
| Series Editor | Series Title | Abbreviated Series Title | Proc. 3. Int. Equine. Sci. Mtg | ||
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| ISSN | ISBN | 978-3-95625-000-2 | Medium | ||
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Id - | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 5896 | ||
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| Author | Brown, R.F.; Houpt, K.A.; Schryver, H.F. | ||||
| Title | Stimulation of food intake in horses by diazepam and promazine | Type | Journal Article | ||
| Year | 1976 | Publication | Pharmacology, biochemistry, and behavior | Abbreviated Journal | Pharmacol Biochem Behav |
| Volume | 5 | Issue | 4 | Pages | 495-497 |
| Keywords | Age Factors; Animals; Diazepam/*pharmacology; Diet; Feeding Behavior/*drug effects; Female; Horses/*physiology; Male; Promazine/*pharmacology; Stimulation, Chemical | ||||
| Abstract | In two adult horses doses of 0.02-0.03 mg/kg diazepam, intravenously, increased 1 hr intake 54-75% above control levels. Intake was stimulated when the diet was a high grain, calorically dense one and also when the diet was a high fiber, calorically dilute one. Two young rapidly growing weanling horses showed an even more pronounced stimulation of intake. Following diazepam 1 hr intake was increased 105-240% above control lelvels. Promazine at a dose of 0.5 mg/kg also stimulated intake in adult horses, but not as markedly as did diazepam. A transquilizer and a neuroleptic appear to have a stimulatory eff upon short-term intake in horses. | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 0091-3057 | ISBN | Medium | ||
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| Notes |
PMID:1005496 | Approved | no | ||
| Call Number | refbase @ user @ | Serial | 60 | ||
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| Author | Matzke, S.M.; Oubre, J.L.; Caranto, G.R.; Gentry, M.K.; Galbicka, G. | ||||
| Title | Behavioral and immunological effects of exogenous butyrylcholinesterase in rhesus monkeys | Type | Journal Article | ||
| Year | 1999 | Publication | Pharmacology, Biochemistry, and Behavior | Abbreviated Journal | Pharmacol Biochem Behav |
| Volume | 62 | Issue | 3 | Pages | 523-530 |
| Keywords | Animals; Antibody Formation/drug effects; Behavior, Animal/*drug effects; Butyrylcholinesterase/*immunology/pharmacokinetics/*pharmacology; Cognition/drug effects; Color Perception/drug effects; Conditioning, Operant/drug effects; Discrimination Learning/drug effects; Half-Life; Horses; Humans; Macaca mulatta; Male | ||||
| Abstract | Although conventional therapies prevent organophosphate (OP) lethality, laboratory animals exposed to such treatments typically display behavioral incapacitation. Pretreatment with purified exogenous human or equine serum butyrylcholinesterase (Eq-BuChE), conversely, has effectively prevented OP lethality in rats and rhesus monkeys, without producing the adverse side effects associated with conventional treatments. In monkeys, however, using a commercial preparation of Eq-BuChE has been reported to incapacitate responding. In the present study, repeated administration of commercially prepared Eq-BuChE had no systematic effect on behavior in rhesus monkeys as measured by a six-item serial probe recognition task, despite 7- to 18-fold increases in baseline BuChE levels in blood. Antibody production induced by the enzyme was slight after the first injection and more pronounced following the second injection. The lack of behavioral effects, the relatively long in vivo half-life, and the previously demonstrated efficacy of BuChE as a biological scavenger for highly toxic OPs make BuChE potentially more effective than current treatment regimens for OP toxicity. | ||||
| Address | Walter Reed Army Institute of Research, Washington, DC 20307-5100, USA | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 0091-3057 | ISBN | Medium | ||
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PMID:10080246 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 4064 | ||
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| Author | Grandin, T. | ||||
| Title | Safe handling of large animals | Type | Journal Article | ||
| Year | 1999 | Publication | Occupational Medicine (Philadelphia, Pa.) | Abbreviated Journal | Occup Med |
| Volume | 14 | Issue | 2 | Pages | 195-212 |
| Keywords | Accidents, Occupational/*prevention & control/statistics & numerical data; Aggression/physiology/psychology; Animal Husbandry/*methods; Animals; *Behavior, Animal/physiology; Cattle; Conditioning, Operant/physiology; Crowding/psychology; Fear/physiology/psychology; Female; *Horses/physiology/psychology; Humans; Male; Movement/physiology; *Occupational Health; Risk Factors; *Ruminants/physiology/psychology | ||||
| Abstract | The major causes of accidents with cattle, horses, and other grazing animals are: panic due to fear, male dominance aggression, or the maternal aggression of a mother protecting her newborn. Danger is inherent when handling large animals. Understanding their behavior patterns improves safety, but working with animals will never be completely safe. Calm, quiet handling and non-slip flooring are beneficial. Rough handling and excessive use of electric prods increase chances of injury to both people and animals, because fearful animals may jump, kick, or rear. Training animals to voluntarily cooperate with veterinary procedures reduces stress and improves safety. Grazing animals have a herd instinct, and a lone, isolated animal can become agitated. Providing a companion animal helps keep an animal calm. | ||||
| Address | Department of Animal Science, Colorado State University, Fort Collins 80526, USA | ||||
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| Language | English | Summary Language | Original Title | ||
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| ISSN | 0885-114X | ISBN | Medium | ||
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| Notes |
PMID:10329901 | Approved | no | ||
| Call Number | Equine Behaviour @ team @ | Serial | 3793 | ||
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