Comparing lying behaviour of young riding horses on days in an individual indoor box, on an outdoor paddock alone, or in pairs and in the following night.
Abstract: Horses must lie down to go into vital rapid-eye movement (REM) sleep. If they are not lying down for sufficiently long periods they can become so sleep-deprived that they collapse uncontrollably, which results in a risk of injuries. Objective: To investigate how recumbency as a prerequisite to REM sleep on the experimental days and the following nights was influenced by changes in social and spatial environment throughout the day. Methods: Cross-over design in which subjects experienced each experimental condition twice. Methods: Observations were conducted on a horse farm. Ten young horses in training were observed on days when they were alone indoors in a box, on an outdoor paddock alone, on the same paddock in pairs, and in the following night stabled alone. The number of lying bouts and the total lying duration throughout the day and night were assessed automatically using 3D-accelerometers and data were evaluated using mixed-models. Results: Horses had a higher number of lying bouts during the days (p = 0.05, by a factor of 1.21 [95% CI: 1.00-1.45]) and longer lying duration at night (p < 0.001, by a factor of 11.25 [6.47-18.40]). On average, the number of lying bouts and the duration of lying increased from being indoors alone, to being outdoors alone, and outdoors in pairs although this could not be statistically supported (bouts: p = 0.5, by a factor of 1.08 [0.84-1.36] and 1.17 [0.91-1.48]; p = 0.6, duration: by a factor of 1.39 [0.73-2.93] and 1.38 [0.68-2.78]). Conclusions: A small number of horses were observed and there was large variability between days within horses. Conclusions: We found some indications that open space and a social companion throughout the day increased time lying down in the day as well as during the following nights thus allowing for more REM sleep.
© 2024 The Authors. Equine Veterinary Journal published by John Wiley & Sons Ltd on behalf of EVJ Ltd.
Publication Date: 2024-01-01 PubMed ID: 38163442DOI: 10.1111/evj.14041Google Scholar: Lookup
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Summary
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This study investigates the impact of social and physical environment changes on the lying behaviour or ‘recumbency’ of young riding horses, with reference to the necessity of lying down for REM sleep. The research suggests that open space and social companionship may increase the duration of REM sleep.
Objective and Methods of the Study
The research explores how the lying behaviour of horses – an essential prerequisite for them to achieve REM sleep – is influenced by changes in their social and spatial environment. A lack of extended lying down periods can lead to sleep-deprivation in horses, sometimes causing them to collapse uncontrollably, which presents a potential risk of injuries.
- The investigative method used in the study was a cross-over design, ensuring that all subjects experienced each experimental condition twice.
- For the duration of the study, observations were conducted on a horse farm with ten young horses in training.
- On days when the horses were alone indoors in a box, on an outdoor paddock alone, on the same paddock in pairs, the researchers monitored and recorded data.
- The data pertaining to the number and duration of horses’ lying bouts throughout the day and night was collected automatically using 3D-accelerometers.
- To evaluate this data, the researchers utilised mixed-models.
Results and Conclusion
Through analysis of gathered data, the study found:
- Horses exhibited a higher number of lying bouts during the daytime and a longer lying duration at night.
- On average, the number of lying bouts and the duration of lying increased slightly from being indoors alone, to being outdoors alone, and outdoors in pairs. However, these findings could not be statistically supported.
- The study’s conclusion is somewhat limited due to the small number of horses observed and a noticeable variability between days within horses.
In conclusion, the study suggests some correlations between time spent lying down (and therefore potential REM sleep) and both open space and social companionship. Whilst the results were not statistically significant, this initial research could provide useful groundwork for further investigations into environmental factors affecting equine sleep. It highlights the importance of conscious planning in setting horses’ living environments to ensure sufficient rest and minimize accidents due to sleep deprivation.
Cite This Article
APA
Helmerich P, Bachmann I, Gygax L.
(2024).
Comparing lying behaviour of young riding horses on days in an individual indoor box, on an outdoor paddock alone, or in pairs and in the following night.
Equine Vet J.
https://doi.org/10.1111/evj.14041 Publication
Researcher Affiliations
- Animal Husbandry & Ethology, Faculty of Life Sciences, Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-Universität zu Berlin, Berlin, Germany.
- Agroscope, Haras National Suisse HNS, Avenches, Switzerland.
- Animal Husbandry & Ethology, Faculty of Life Sciences, Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-Universität zu Berlin, Berlin, Germany.
References
This article includes 27 references
- Dohms-Warnecke T, Düe M, Hertsch B, Hoffmann G, Kaspareit T, Lagershausen H, et al. Grundwissen zur Haltung, Fütterung, Gesundheit und Zucht, Richtlinien für Reiten und Fahren Band 4. Warendorf: FNverlag der Deutschen Reiterlichen Vereinigung GmbH; 2016.
- Schäfer M. Die Sprache des Pferdes: Lebensweise und Ausdrucksformen. München: Nymphenburger Verlagshandlung; 1974.
- Greening L, McBride S. A review of equine sleep: implications for equine welfare. Front Vet Sci 2022;9:916737.
- Wöhr AC, Erhard M. Polysomnographische Untersuchungen zum Schlafverhalten des Pferdes. Aktuelle Arbeiten zur artgemäßen Tierhaltung 2006;448:127-135.
- Dallaire A. Rest behavior. Vet Clin North Am Equine Pract 1986;2:591-607.
- Williams D, Aleman M, Holliday T, Fletcher DJ, Tharp B, Kass PH. Qualitative and quantitative characteristics of the electroencephalogram in normal horses during spontaneous drowsiness and sleep. J Vet Intern Med 2008;22:630-638.
- Hassenberg L. Verhalten bei Einhufern. 2nd ed. Magdeburg: VerlagsKG Wolf; 2005.
- Fuchs C, Kiefner LC, Reese S, Erhard M, Wöhr AC. Equine recumbent sleep deprivation: effects on mental and physical health. Proceedings of the 14th Equitation Science Conference, Rome 2018:44.
- Feist J, McCullough D. Behavior patterns and communication in feral horses. Z Tierpsychol 1976;41:337-371.
- Ninomiya S, Aoyama M, Ujiie Y, Kusunose R, Kuwano A. Effects of bedding material on the lying behavior in stabled horses. J Equine Sci 2008;19:53-56.
- Werhahn H, Hessel E, Bachhausen I, Van den Weghe HFA. Effects of different bedding materials on the behavior of horses housed in single stalls. J Equine Vet 2010;30:425-431.
- Burla JB, Rufener C, Bachmann I, Gygax L, Patt A, Hillman E. Space allowance of the littered area affects lying behavior in group-housed horses. Front Vet Sci 2017;4:23.
- Raabymagle P, Ladewig J. Lying behavior in horses in relation to box size. J Equine Vet 2006;26:11-17.
- Kjellberg L, Yngvesson J, Sassner H, Morgan K. Horses' use of lying halls and time budget in relation to available lying area. Animals 2021;11:3214.
- Fader C. Ausscheide- und Ruheverhalten von Pferden in Offenlaufstall- und Boxenhaltung. München: Fakultät Wissenschaftszentrum Weihenstephan; 2002.
- Zeitler-Feicht M, Prantner V. Lying resting behaviour of horses in loose housing systems with open yards. Archiv für Tierzucht 2000;43:327-335.
- Burla JB, Ostertag A, Schulze Westerath H, Hillman E. Gait determination and activity measurement in horses using an accelerometer. Comp Electr Agricult 2014;102:127-133.
- Hess C, Kaspareit T, Miesner S, Plewa M, Putz M. Grundausbildung für Reiter und Pferd, Richtlinien für Reiten und Fahren Band 1. Warendorf: FNverlag der Deutschen Reiterlichen Vereinigung GmbH; 2014.
- R Core Team. R: a language and environment for statistical computing. Vienna, Austria: R Foundation for Statistical Computing; 2023.
- Chung Y, Rabe-Hesketh S, Dorie V, Gelman A, Liu J. A nondegenerate penalized likelihood estimator for variance parameters in multilevel models. Psychometrika 2013;78:685-709.
- Hartig F, Lohse L. DHARMa: Residual diagnostics for hierarchical (multi-level/mixed) regression models. 2022.
- Halekoh U, Højsgaard S. A Kenward-Roger approximation and parametric bootstrap methods for tests in linear mixed models - the R package pbkrtest. J Stat Soft 2014;59:1-30.
- Stachurska A, Kowalska N, Kolstrung R, Pluta M. Time of lying in the horse with regard to its sex and system of management. Acta Scient Polon Zootech 2016;15:77-86.
- Niederhöfer S. Stressbelastung bei Pferden in Abhängigkeit des Haltungssystems. Hannover: Tierärztliche Hochschule Hannover; 2009.
- Zanker A, Wöhr AC, Reese S, Erhard M. Qualitative and quantitative analyses of polysomnographic measurements in foals. Sci Rep 2021;11:16288.
- Kjellberg L, Sassner H, Yngvesson J. Horses' resting behaviour in shelters of varying size compared with single boxes. Appl Anim Behav Sci 2022;254:105715.
- Ihle P. Ethologische Studie über den Tagesrhythmus von Pferden in Abhängigkeit von der Haltungsform. Gießen: Dissertation Med. Vet.; 1984.
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