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Animals : an open access journal from MDPI2025; 15(19); 2779; doi: 10.3390/ani15192779

Physiological and Behavioral Responses of Stabled Horses (Equus caballus) to Three Types of Environmental Enrichment.

Abstract: Small stalls and regulated feedings restrict horses' natural foraging and locomotion, increasing risks to welfare. Environmental enrichment may promote more naturalistic behavioral time budgets, yet little is known about how enrichment type or timing affects physiology and behavior. This study examined nine stabled Quarter Horses provided with hay feeders, activity balls, or mirrors across randomized trials. Each trial included 30 min observations, four times per day, with enrichment removed between sessions and 5-day washouts between trials. Nightwatch Smart Halters™ recorded heart and respiration rates, while behaviors were video-scored using instantaneous scan sampling. Observers were not blind to the treatments. Enrichment effects, item type, time of day, and possible interactions for each variable were tested using a GLMM; Tukey's HSD multiple comparison procedure was used for post hoc comparisons (at ≤ 0.05). Enrichment significantly increased heart rate compared with the control ( = 0.03), indicating heightened arousal, with hay feeders producing the strongest effects. Respiration rate was unaffected. Mirrors reduced evening heart rates compared with other times ( = 0.02). Across treatments, enrichment increased foraging ( = 0.01) and locomotion ( = 0.03), while reducing frustration behaviors ( = 0.03). Hay feeders produced time budgets most similar to wild horses, suggesting greater effectiveness at meeting behavioral needs. Effects were most pronounced at 12:00 h and 16:00 h, outside routine meals. Overall, enrichment may improve physiological and behavioral outcomes, supporting its role in promoting welfare for stabled horses. Larger studies are needed to assess item-specific and long-term impacts.
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Publication Date: 2025-09-23 PubMed ID: 41096375PubMed Central: PMC12523708DOI: 10.3390/ani15192779Google Scholar: Lookup
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APA
Brauns M, Ali A, Berger J, McLean A. (2025). Physiological and Behavioral Responses of Stabled Horses (Equus caballus) to Three Types of Environmental Enrichment. Animals (Basel), 15(19), 2779. https://doi.org/10.3390/ani15192779

Publication

Animals : an open access journal from MDPI
ISSN: 2076-2615
NlmUniqueID: 101635614
Country: Switzerland
Language: English
Volume: 15
Issue: 19
PII: 2779

Researcher Affiliations

Brauns, Miranda
  • Animal Biology Department, University of California Davis, Davis, CA 95616, USA.
Ali, Ahmed
  • Animal and Veterinary Sciences Department, Clemson University, Clemson, SC 29634, USA.
Berger, Jeannine
  • Sacramento Veterinary Behavior Services, Vacaville, CA 95688, USA.
McLean, Amy
  • Animal Science Department, University of California Davis, Davis, CA 95616, USA.

Conflict of Interest Statement

The authors declare no conflicts of interest. The funders had no role in the design of this study; in the collection, analyses, or interpretation of the data; in the writing of this manuscript; or in the decision to publish the results.

References

This article includes 78 references
  1. Dawkins M.S. Evolution and Animal Welfare. Q. Rev. Biol. 1998;73:305–328. doi: 10.1086/420307.
    doi: 10.1086/420307pubmed: 9737005google scholar: lookup
  2. Fraser D., Weary D.M., Pajor E.A., Milligan B.N. A scientific conception of animal welfare that reflects ethical concerns. Anim. Welf. 1997;6:187–205. doi: 10.1017/S0962728600019795.
    doi: 10.1017/S0962728600019795google scholar: lookup
  3. Fraser D. Understanding animal welfare. Acta Vet. Scand. 2008;50:S1. doi: 10.1186/1751-0147-50-S1-S1.
    doi: 10.1186/1751-0147-50-S1-S1pmc: PMC4235121pubmed: 19049678google scholar: lookup
  4. Broom D.M. Animal welfare: Concepts and measurement. J. Anim. Sci. 1991;69:4167–4175. doi: 10.2527/1991.69104167x.
    doi: 10.2527/1991.69104167xpubmed: 1778832google scholar: lookup
  5. McPhee M.E., Carlstead K. The importance of maintaining natural behaviors in captive mammals. In: Kleiman D., Thompson K., Baer K., editors. Wild Mammals in Captivity: Principles and Techniques for Zoo Management. 2nd ed. University of Chicago Press; Chicago, IL, USA: 2010. pp. 303–313.
  6. Jørgensen G.H.M., Bøe K.E. A note on the effect of daily exercise and paddock size on the behaviour of domestic horses (Equus caballus) Appl. Anim. Behav. Sci. 2007;107:166–173. doi: 10.1016/j.applanim.2006.09.025.
    doi: 10.1016/j.applanim.2006.09.025google scholar: lookup
  7. Hemsworth L.M., Jongman E.C., Coleman G.J. The human-horse relationship: Identifying the antecedents of horse owner attitudes towards horse husbandry and management behaviour. Animals. 2021;11:278. doi: 10.3390/ani11020278.
    doi: 10.3390/ani11020278pmc: PMC7911803pubmed: 33499202google scholar: lookup
  8. Martinson K., Hathaway M., Wilson J.H., Gilkerson B., Peterson P.R., Del Vecchio R. University of Minnesota horse owner survey: Building an equine extension program. [(accessed on 7 April 2023)];J. Ext. 2006 44:6RIB4. Available online: https://open.clemson.edu/joe/vol44/iss6/13/
  9. Ross M., Proudfoot K., Merkies K., Elsohaby I., Mills M., Macmillan K., Mckenna S., Ritter C. Horse housing on Prince Edward Island, Canada: Attitudes and experiences related to keeping horses outdoors and in groups. Animals. 2023;13:275. doi: 10.3390/ani13020275.
    doi: 10.3390/ani13020275pmc: PMC9855179pubmed: 36670815google scholar: lookup
  10. Jørgensen G.H.M., Bøe K.E. Individual paddocks versus social enclosure for horses. EAAP Sci. Ser. 2007;122:79–83. doi: 10.3920/9789086866144_010.
    doi: 10.3920/9789086866144_010google scholar: lookup
  11. Lewis H.E. The Basics of Horse Stall Design. Stable Management. 2021. [(accessed on 24 October 2023)]. Available online: https://stablemanagement.com/barns-grounds/the-basics-of-horse-stall-design/
  12. Hotchkiss J.W., Reid S.W.J., Christley R.M. A survey of horse owners in Great Britain regarding horses in their care. Part 1: Horse demographic characteristics and management. Equine Vet. J. 2007;39:294–300. doi: 10.2746/042516407X177538.
    doi: 10.2746/042516407X177538pubmed: 17722719google scholar: lookup
  13. Henderson J.V. Don’t fence me in: Managing psychological well-being for elite performance horses. J. Appl. Anim. Welf. Sci. 2007;10:309–329. doi: 10.1080/10888700701555576.
    doi: 10.1080/10888700701555576pubmed: 17970632google scholar: lookup
  14. Werhahn H., Hessel E.F., Van den Weghe H.F.A. Competition horses housed in single stalls (II): Effects of free exercise on the behavior in the stable, the behavior during training, and the degree of stress. J. Equine Vet. Sci. 2012;32:22–31. doi: 10.1016/j.jevs.2011.06.009.
    doi: 10.1016/j.jevs.2011.06.009google scholar: lookup
  15. McGreevy P. Equine Behavior: A Guide for Veterinarians and Equine Scientists. Saunders Ltd.; Uckfield, UK: 2004.
  16. Goodwin D. Horse behaviour: Evolution, domestication and feralisation. In: Waran N., editor. The Welfare of Horses. Kluwer Academic Publishers; Dordrecht, The Netherlands: 2002. pp. 1–18.
  17. Boyd L.E., Carbonaro D.A., Houpt K.A. The 24-hour time budget of Przewalski horses. Appl. Anim. Behav. Sci. 1988;21:5–17. doi: 10.1016/0168-1591(88)90098-6.
    doi: 10.1016/0168-1591(88)90098-6google scholar: lookup
  18. Ransom J.I., Cade B.S. US Geological Survey Techniques and Methods 2-A9. United States Geological Survey; Reston, VA, USA: 2009. Quantifying equid behavior: A research ethogram for free-roaming feral horses; p. 23.
    doi: 10.3133/tm2A9google scholar: lookup
  19. Ogilvie-Graham T.S. Ph.D. Dissertation. University of Edinburgh. Edinburgh Research Archive; Edinburgh, UK: 1994. [(accessed on 27 October 2023)]. Time Budget Studies in Stalled Horses. Available online: http://hdl.handle.net/1842/29924.
  20. Gellman K., Ruina A. Standing horse posture: A longer stance is more stable. Biol. Open. 2022;11:bio059139. doi: 10.1242/bio.059139.
    doi: 10.1242/bio.059139pmc: PMC9115912pubmed: 35545924google scholar: lookup
  21. Harris P.A. How understanding the digestive process can help minimise digestive disturbances due to diet and feeding practices. In: Harris P.A., Gomarsall G., Davidson H.P.B., Green R., editors. Proceedings of the BEVA Specialist Days on Nutrition and Behaviour. Equine Veterinary Journal Ltd.; Fordham, UK: 1999. pp. 45–50.
  22. Campbell-Thompson M.L., Merritt A.M. Effect of ranitidine on gastric acid secretion in young male horses. Am. J. Vet. Res. 1987;48:1511–1515. doi: 10.2460/ajvr.1987.48.10.1511.
    doi: 10.2460/ajvr.1987.48.10.1511pubmed: 3674562google scholar: lookup
  23. McClure S.R. Equine Gastric Ulcers: Special Care and Nutrition. 2016. [(accessed on 23 October 2023)]. American Association of Equine Practitioners. Available online: https://aaep.org/horsehealth/equine-gastric-ulcers-special-care-and-nutrition.
  24. Orsini J. Gastric ulceration in the mature horse: A review. Equine Vet. Educ. 2000;12:24–27. doi: 10.1111/j.2042-3292.2000.tb01759.x.
    doi: 10.1111/j.2042-3292.2000.tb01759.xgoogle scholar: lookup
  25. Murray M.J., Schusser G. Application of gastric pH-metry in horses: Measurement of 24 hour gastric pH in horses fed, fasted, and treated with ranitidine. J. Vet. Intern. Med. 1993;6:133. doi: 10.1111/j.2042-3306.1993.tb02983.x.
    doi: 10.1111/j.2042-3306.1993.tb02983.xpubmed: 8223373google scholar: lookup
  26. McGreevy P.D., Cripps P.J., French N.P., Green L.E., Nicol C.J. Management factors associated with stereotypic and redirected behaviour in the thoroughbred horse. Equine Vet. J. 1995;27:86–91. doi: 10.1111/j.2042-3306.1995.tb03041.x.
    doi: 10.1111/j.2042-3306.1995.tb03041.xpubmed: 7607155google scholar: lookup
  27. Cooper J.J., McGreevy P.D. Stereotypic behavior in the stabled horse: Cause, effects, and prevention without compromising horse welfare. In: Waran N., editor. The Welfare of Horses. Kluwer Academic Publishers; Dordrecht, The Netherlands: 2002. pp. 99–124.
  28. McBride S.D., Hemmings A. A neurologic perspective of equine stereotypy. J. Equine Vet. Sci. 2009;29:10–16. doi: 10.1016/j.jevs.2008.11.008.
    doi: 10.1016/j.jevs.2008.11.008google scholar: lookup
  29. Newberry R.C. Environmental enrichment: Increasing the biological relevance of captive environments. Appl. Anim. Behav. Sci. 1995;44:229–243. doi: 10.1016/0168-1591(95)00616-Z.
    doi: 10.1016/0168-1591(95)00616-Zgoogle scholar: lookup
  30. Shepherdson D. Tracing the path of environmental enrichment in zoos. In: Shepherdson D., Mellen J.D., Hutchins M., editors. Second Nature: Environmental Enrichment for Captive Animals. Smithsonian Institution Press; Washington, DC, USA: 1998. pp. 1–13.
  31. Taylor P.S., Schrobback P., Verdon M., Lee C. An effective environmental enrichment framework for the continual improvement of production animal welfare. Anim. Welf. 2022;32:e14. doi: 10.1017/awf.2023.5.
    doi: 10.1017/awf.2023.5pmc: PMC10936304pubmed: 38487434google scholar: lookup
  32. Alligood C., Leighty K. Putting the “E” in SPIDER: Evolving trends in the evaluation of environmental enrichment efficacy in zoological settings. Anim. Behav. Cogn. 2015;2:200–217. doi: 10.12966/abc.08.01.2015.
    doi: 10.12966/abc.08.01.2015google scholar: lookup
  33. Mellen J., MacPhee M.S. Philosophy of environmental enrichment: Past, present, and future. Zoo Biol. 2001;20:211–226. doi: 10.1002/zoo.1021.
    doi: 10.1002/zoo.1021google scholar: lookup
  34. Decker S., Lavery J.M., Mason G.J. Don’t use it? Don’t lose it! Why active use if not required for stimuli, resources or “enrichments” to have welfare value. Zoo Biol. 2023;42:467–475. doi: 10.1002/zoo.21756.
    doi: 10.1002/zoo.21756pubmed: 36779682google scholar: lookup
  35. Russell J.A. A circumplex model of affect. J. Personal. Soc. Psychol. 1980;39:1161–1178. doi: 10.1037/h0077714.
    doi: 10.1037/h0077714google scholar: lookup
  36. Endler N.S., Edwards J.M., Vitelli R., Parker J.D.A. Assessment of state and trait anxiety: Endler multidimensional anxiety scales. Anxiety Res. 1989;2:1–14. doi: 10.1080/08917778908249322.
    doi: 10.1080/08917778908249322google scholar: lookup
  37. Horback K.M., Parsons T.D. Judgement bias testing in group-housed gestating sows. Behav. Process. 2019;159:86–92. doi: 10.1016/j.beproc.2018.12.021.
    doi: 10.1016/j.beproc.2018.12.021pubmed: 30610905google scholar: lookup
  38. Leiner L., Fendt M. Behavioural fear and heart rate responses of horses after exposure to novel objects: Effects of habituation. Appl. Anim. Behav. Sci. 2011;131:104–109. doi: 10.1016/j.applanim.2011.02.004.
    doi: 10.1016/j.applanim.2011.02.004google scholar: lookup
  39. Benhajali H., Richard-Yris M.A., Ezzaouia M., Charfi F., Hausberger M. Foraging opportunity: A crucial criterion for horse welfare? Animal. 2009;3:1308–1312. doi: 10.1017/S1751731109004820.
    doi: 10.1017/S1751731109004820pubmed: 22444907google scholar: lookup
  40. Ellis A.D., Redgate S., Zinchenko S., Owen H., Barfoot C., Harris P. The effect of presenting forage in multi-layered haynets and at multiple sites on night time budgets of stabled horses. Appl. Anim. Behav. Sci. 2015;171:108–116. doi: 10.1016/j.applanim.2015.08.012.
    doi: 10.1016/j.applanim.2015.08.012google scholar: lookup
  41. Goodwin D., Davidson H.P.B., Harris P. Foraging enrichment for stabled horses: Effects on behaviour and selection. Equine Vet. J. 2002;34:686–691. doi: 10.2746/042516402776250450.
    doi: 10.2746/042516402776250450pubmed: 12455839google scholar: lookup
  42. Henderson J.V., Waran N.K. Reducing equine stereotypies using an EquiballTM. Anim. Welf. 2001;10:73–80. doi: 10.1017/S0962728600023277.
    doi: 10.1017/S0962728600023277google scholar: lookup
  43. Jørgensen G.H.M., Liestøl S.H.O., Bøe K.E. Effects of enrichment items on activity and social interactions in domestic horses (Equus caballus) Appl. Anim. Behav. Sci. 2011;129:100–110. doi: 10.1016/j.applanim.2010.11.004.
    doi: 10.1016/j.applanim.2010.11.004google scholar: lookup
  44. Kenney T. Bachelor’s Thesis. Alfred University. AURA: Alfred University Research & Archives; Alfred, NY, USA: 2018. [(accessed on 6 October 2021)]. The Effects of Enrichment Items on Cribbing in Equus caballus. Available online: http://hdl.handle.net/10829/8208.
  45. Rochais C., Henry S., Hausberger M. “Hay-bags” and “slow feeders”: Testing their impact on horse behaviour and welfare. Appl. Anim. Behav. Sci. 2018;198:52–59. doi: 10.1016/j.applanim.2017.09.019.
    doi: 10.1016/j.applanim.2017.09.019google scholar: lookup
  46. Thorne J., Goodwin D., Kennedy M., Davidson H., Harris P. Foraging enrichment for individually housed horses: Practicality and effects on behaviour. Appl. Anim. Behav. Sci. 2005;94:149–164. doi: 10.1016/j.applanim.2005.02.002.
    doi: 10.1016/j.applanim.2005.02.002google scholar: lookup
  47. Winskill L.C., Waran N.K., Young R.J. The effect of a foraging device (a modified ‘Edinburgh Foodball’) on the behaviour of the stabled horse. Appl. Anim. Behav. Sci. 1996;48:25–35. doi: 10.1016/0168-1591(95)01021-1.
    doi: 10.1016/0168-1591(95)01021-1google scholar: lookup
  48. Grime E., Northrop A., Rosbotham M.E., Howells K.L. The effect of mirrors for the control of stereotypic weaving in the stabled horse. BSAP Occas. Publ. 2004;32:185–186. doi: 10.1017/S0263967X00041410.
    doi: 10.1017/S0263967X00041410google scholar: lookup
  49. McAfee L.M., Mills D.S., Cooper J.J. The use of mirrors for the control of stereotypic weaving behaviour in the stabled horse. Appl. Anim. Behav. Sci. 2002;78:159–173. doi: 10.1016/S0168-1591(02)00086-2.
    doi: 10.1016/S0168-1591(02)00086-2google scholar: lookup
  50. Mills D., Davenport K. The effect of a neighbouring conspecific versus the use of a mirror for the control of stereotypic weaving behaviour in the stabled horse. Anim. Sci. 2002;74:95–101. doi: 10.1017/S1357729800052255.
    doi: 10.1017/S1357729800052255google scholar: lookup
  51. Bulens A., Dams A., Beirendonck S.V., Thielen J.V., Driessen B. A preliminary study on the long-term interest of horses in ropes and Jolly Balls. J. Vet. Behav. 2015;10:83–86. doi: 10.1016/j.jveb.2014.08.003.
    doi: 10.1016/j.jveb.2014.08.003google scholar: lookup
  52. Bulens A., Beirendonck S.V., Thielen J.V., Driessen B. The enriching effect of non-commercial items in stabled horses. Appl. Anim. Behav. Sci. 2013;143:46–51. doi: 10.1016/j.applanim.2012.11.012.
    doi: 10.1016/j.applanim.2012.11.012google scholar: lookup
  53. Huo X., Yaemklang S., Pimmai P., Kupittayanant P., Na-Lampang P. A preliminary study of the effects of enrichment on stereotypic and non-stereotypic horses. Vet. Integr. Sci. 2021;19:581–590. doi: 10.12982/VIS.2021.045.
    doi: 10.12982/VIS.2021.045google scholar: lookup
  54. Kędzierski W., Janczarek I., Stachurska A., Wilk I. Comparison of effects of different relaxing massage frequencies and different music hours on reducing stress level in race horses. J. Equine Vet. Sci. 2017;53:100–107. doi: 10.1016/j.jevs.2017.02.004.
    doi: 10.1016/j.jevs.2017.02.004google scholar: lookup
  55. Kędzierski W., Janczarek I., Stachurska A., Wilk I. Massage or music meant to be relaxing, result in lowering salivary cortisol concentration in race horses. Pferdeheilkunde Equine Med. 2017;33:146–151. doi: 10.21836/PEM20170206.
    doi: 10.21836/PEM20170206google scholar: lookup
  56. Neveux C., Ferard M., Dickel L., Bouet V., Petit O., Valenchon M. Classical music reduces acute stress of domestic horses. J. Vet. Behav. 2016;15:81. doi: 10.1016/j.jveb.2016.08.019.
    doi: 10.1016/j.jveb.2016.08.019google scholar: lookup
  57. Wiśniewska M., Janczarek I., Wilk I., Wnuk-Pawlak E. Use of music therapy in aiding the relaxation of geriatric horses. J. Equine Vet. Sci. 2019;78:89–93. doi: 10.1016/j.jevs.2018.12.011.
    doi: 10.1016/j.jevs.2018.12.011pubmed: 31203990google scholar: lookup
  58. Henneke D.R., Potter G.D., Kreider J.L., Yeates B.F. Relationship between condition score, physical measurements and body fat percentage in mares. Equine Vet. J. 1983;15:371–372. doi: 10.1111/j.2042-3306.1983.tb01826.x.
    doi: 10.1111/j.2042-3306.1983.tb01826.xpubmed: 6641685google scholar: lookup
  59. World Weather Weather in Davis (California) in April 2022. Apr, 2022. [(accessed on 23 July 2023)]. Available online: https://world-weather.info/forecast/usa/davis/april-2022/
  60. Protequus . Nightwatch® Smart Halter™ [Equipment and Software] Protequus; Austin, TX, USA: 2021. [(accessed on 4 April 2022)]. Available online: https://smarthalter.com.
  61. Friard O., Gamba M. Behavioral Observation Research Interactive Software. Protequus; Austin, TX, USA: 2022. [(accessed on 8 July 2022)]. BORIS; Version 7.13.6. [Computer Software] Available online: https://www.boris.unito.it/
  62. Waring G.H. Horse Behavior. Noyes Publications/William Andrew Publishing; Norwich, NY, USA: 2003.
  63. Hox J.J., Moerbeek M., Kluytmans A., van de Schoot R. Analyzing indirect effects in cluster randomized trials. The effect of estimation method, number of groups and group sizes on accuracy and power. Front. Psychol. 2014;5:78. doi: 10.3389/fpsyg.2014.00078.
    doi: 10.3389/fpsyg.2014.00078pmc: PMC3912451pubmed: 24550881google scholar: lookup
  64. Lee S.Y., Song X.Y. Evaluation of the Bayesian and maximum likelihood approaches in analyzing structural equation models with small sample sizes. Multivar. Behav. Res. 2004;39:653–686. doi: 10.1207/s15327906mbr3904_4.
    doi: 10.1207/s15327906mbr3904_4pubmed: 26745462google scholar: lookup
  65. R Core Team . R: A Language and Environment for Statistical Computing. R Foundation for Statistical Computing; Vienna, Austria: 2013. [(accessed on 26 May 2023)]. Version 3.3.1. [Computer Software] Available online: http://www.R-project.org/
  66. Bates D., Mächler M., Bolker B., Walker S. Fitting linear mixed-effects models using lme4. arXiv. 2014 doi: 10.48550/arXiv.1406.5823.1406.5823
    doi: 10.48550/arXiv.1406.5823google scholar: lookup
  67. Hothorn T., Bretz F., Westfall P. Simultaneous inference in general parametric models. Biom. J. J. Math. Methods Biosci. 2008;50:346–363. doi: 10.1002/bimj.200810425.
    doi: 10.1002/bimj.200810425pubmed: 18481363google scholar: lookup
  68. Landis J.R., Koch G.G. The measurement of observer agreement for categorical data. Biometrics. 1977;33:159–174. doi: 10.2307/2529310.
    doi: 10.2307/2529310pubmed: 843571google scholar: lookup
  69. European Respiratory Society Your lungs and exercise. Breathe. 2016;12:97–100. doi: 10.1183/20734735.ELF121.
    doi: 10.1183/20734735.ELF121pmc: PMC4818249pubmed: 27066145google scholar: lookup
  70. Art T., Desmecht D., Amory H., Lekeux P. Synchronization of locomotion and respiration in trotting ponies. J. Vet. Med. 1990;37:97–103. doi: 10.1111/j.1439-0442.1990.tb00880.x.
    doi: 10.1111/j.1439-0442.1990.tb00880.xpubmed: 2113754google scholar: lookup
  71. Franklin S.H., Van Erck-Westergren E., Bayly W.M. Respiratory responses to exercise in the horse. Equine Vet. J. 2012;44:726–732. doi: 10.1111/j.2042-3306.2012.00666.x.
    doi: 10.1111/j.2042-3306.2012.00666.xpubmed: 23106622google scholar: lookup
  72. Safryghin A., Hebesberger D.V., Wascher C.A. Testing for behavioral and physiological responses of domestic horses (Equus caballus) across different contexts–consistency over time and effects of context. Front. Psychol. 2019;10:849. doi: 10.3389/fpsyg.2019.00849.
    doi: 10.3389/fpsyg.2019.00849pmc: PMC6482254pubmed: 31057468google scholar: lookup
  73. Baumgartner M., Boisson T., Erhard M.H., Zeitler-Feicht M.H. Common feeding practices pose a risk to the welfare of horses when kept on non-edible bedding. Animals. 2020;10:411. doi: 10.3390/ani10030411.
    doi: 10.3390/ani10030411pmc: PMC7142811pubmed: 32131415google scholar: lookup
  74. Garner J.P. Stereotypies and other abnormal repetitive behaviors: Potential impact on validity, reliability, and replicability of scientific outcomes. Inst. Lab. Anim. Res. J. 2005;46:106–117. doi: 10.1093/ilar.46.2.106.
    doi: 10.1093/ilar.46.2.106pubmed: 15775020google scholar: lookup
  75. Jørgensen G.H.M., Liestøl S.H.O., Bøe K.E. Use of different items of “enrichment” for individual and group kept horses. J. Vet. Behav. 2010;5:216. doi: 10.1016/j.jveb.2009.10.039.
    doi: 10.1016/j.jveb.2009.10.039google scholar: lookup
  76. Browning H. The natural behavior debate: Two conceptions of animal welfare. J. Appl. Anim. Welf. Sci. 2020;23:325–337. doi: 10.1080/10888705.2019.1672552.
    doi: 10.1080/10888705.2019.1672552pubmed: 31559855google scholar: lookup
  77. Gomez P., Stahel W.A., Danuser B. Respiratory responses during affective picture viewing. Biol. Psychol. 2004;67:359–373. doi: 10.1016/j.biopsycho.2004.03.013.
    doi: 10.1016/j.biopsycho.2004.03.013pubmed: 15294392google scholar: lookup
  78. Stachurska A., Janczarek I., Wilk I., Kędzierski W. Does music influence emotional state in race horses? J. Equine Vet. Sci. 2015;35:650–656. doi: 10.1016/j.jevs.2015.06.008.
    doi: 10.1016/j.jevs.2015.06.008google scholar: lookup

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