A comparison of unheated loose housing with stables on the respiratory health of weaned-foals in cold winter conditions: an observational field-study.
Abstract: Newly weaned horses in Finland are often moved to unheated loose housing systems in which the weanlings have free access to a paddock and a shelter. This practice is considered to be good for the development of young horses. The daily temperatures can stay below - 20 °C in Finland for several consecutive weeks during the winter season. However, the effect of unheated housing in a cold climatic environment on the respiratory health of weanlings under field conditions has not been studied before. This investigation was an observational field-study comprising 60 weanlings among 11 different voluntary participant rearing farms in Finland. Weanlings were either kept in unheated loose housing systems (n = 36) or in stables (n = 24) and were clinically examined on two separate occasions 58 days apart in cold winter conditions. Results: The odds of clinical respiratory disease were lower in the older foals (log days); OR = 0.009, P = 0.044). The plasma fibrinogen concentration was higher when the available space (m/weanling) in the sleeping hall was smaller (P = 0.014) and it was lower when the sleeping hall was not insulated (P = 0.010). The plasma fibrinogen concentrations at the second examination were lower with a body condition score above 3 (P = 0.070). Standardbreds kept in loose housing systems had a lower body condition score than Finnhorses or Standardbreds kept in stables at both examinations (P = 0.026 and P = 0.007, respectively). Haemoglobin level was lower in weanlings in loose housing systems compared to their counterparts at the first examination (P = 0.037). Finnhorses had higher white blood cell count than Standardbreds at first (P = 0.002) and at the second examination (P = 0.001). Conclusions: Keeping weanling horses in cold loose housing systems does not seem to increase the occurrence of respiratory disease, but special attention should be focused on ventilation, air quality and feeding-practices. Our field study data suggest it might be advantageous to keep Standardbred foals born late in the season in a stable over the Finnish winter.
Publication Date: 2017-10-26 PubMed ID: 29073941PubMed Central: PMC5658990DOI: 10.1186/s13028-017-0339-3Google Scholar: Lookup
The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
- Comparative Study
- Journal Article
- Observational Study
Summary
This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.
This research investigates the effects of keeping young, newly weaned horses (weanlings) in unheated loose housing systems during Finland’s cold winters–compared to traditional stabling–on their respiratory health. The study finds no increase in respiratory disease from these cold loose housing conditions, suggesting such practice might be safe; however, certain housing and care practices are emphasized for optimal horse health.
Study Design and Methods
- This was an observational field-study involving a total of 60 weanlings from 11 different volunteer horse rearing farms in Finland.
- These young horses were either kept in unheated loose housing systems (36 weanlings) or in traditional stables (24 weanlings).
- The researchers conducted clinical exams of the weanlings twice, spaced 58 days apart, in cold winter conditions with temperatures below -20 °C.
Key Findings
- There was lower occurrence of clinical respiratory disease in older foals.
- The plasma fibrinogen concentration, a measure related to inflammation and tissue damage, tended to be higher when the available space per weanling was smaller, and lower when the sleeping hall was not insulated.
- Weanlings with a higher body condition score (a measure of physical health and body fat) had lower plasma fibrinogen levels in the second examination.
- Standardbred weanlings kept in unheated loose housing had a lower body condition score than either Finnhorses or Standardbreds kept in stables. This was consistent at both examinations.
- Haemoglobin levels, indicative of red blood cell levels, were lower in weanlings in unheated loose housing compared to those in stables at the first examination.
- Finnhorses had higher white blood cell counts, indicating potential infections or inflammation, than Standardbreds at both examinations.
Conclusions and Recommendations
- The study concluded that keeping weanlings in cold unheated loose housing systems does not seem to increase the occurrence of respiratory disease, indicating that this practice might be reasonable during Finland’s harsh winters.
- Special attention, however, should be directed towards ventilation, air quality, and feeding-practices to ensure good animal health.
- The study’s findings suggest it might be beneficial to keep late-born Standardbred foals in more traditional stables over the Finnish winter, rather than in the unheated loose housing systems.
Cite This Article
APA
Junkkari R, Simojoki H, Heiskanen ML, Pelkonen S, Sankari S, Tulamo RM, Mykkänen A.
(2017).
A comparison of unheated loose housing with stables on the respiratory health of weaned-foals in cold winter conditions: an observational field-study.
Acta Vet Scand, 59(1), 73.
https://doi.org/10.1186/s13028-017-0339-3 Publication
Researcher Affiliations
- Department of Equine and Small Animal Medicine, University of Helsinki, Helsinki, 00014, Finland. reija.junkkari@helsinki.fi.
- Department of Production Animal Medicine, University of Helsinki, Helsinki, 00014, Finland.
- Equine Information Centre, Neulaniementie 5, Kuopio, 70210, Finland.
- Research and Laboratory Department, Veterinary Bacteriology Research Unit, Finnish Food Safety Authority Evira, Neulaniementie 4, Kuopio, 70701, Finland.
- Department of Equine and Small Animal Medicine, University of Helsinki, Helsinki, 00014, Finland.
- Department of Equine and Small Animal Medicine, University of Helsinki, Helsinki, 00014, Finland.
- Department of Equine and Small Animal Medicine, University of Helsinki, Helsinki, 00014, Finland.
MeSH Terms
- Animals
- Cold Temperature
- Female
- Horses / growth & development
- Housing, Animal
- Male
References
This article includes 55 references
- Zeep K, Schintzer U. Housing and training of horses according to their species-specific behavior.. Livest Prod Sci 1997;49:181–189.
- Heleski CR, Shelle AC, Nielsen BD, Zanella AJ. Influence of housing on weanling horse behavior and subsequent welfare.. Appl Anim Behav Sci 2002;78:291–302.
- Søndergaard E, Ladewig J. Group housing exerts a positive effect on the behaviour of young horses during training.. Appl Anim Behav Sci 2004;87:105–118.
- Finnish Meteorologigal institute, Swedish Meteorologigal and hydrologigal institute.
- Cymbaluk NF, Christison GI. Effects of diet and climate on growing horses.. J Anim Sci 1989 Jan;67(1):48-59.
- Autio E, Heiskanen ML. Foal behaviour in loose housing/paddock environment during winter.. Appl Anim Behav Sci 2005;91:277–288.
- Erber R, Wulf M, Rose-Meierhöfer S, Becker-Birck M, Möstl E, Aurich J, Hoffmann G, Aurich C. Behavioral and physiological responses of young horses to different weaning protocols: a pilot study.. Stress 2012 Mar;15(2):184-94.
- Henry S, Zanella AJ, Sankey C, Richard-Yris MA, Marko A, Hausberger M. Adults may be used to alleviate weaning stress in domestic foals (Equus caballus).. Physiol Behav 2012 Jun 25;106(4):428-38.
- Smith BL, Jones JH, Hornof WJ, Miles JA, Longworth KE, Willits NH. Effects of road transport on indices of stress in horses.. Equine Vet J 1996 Nov;28(6):446-54.
- Schmidt A, Hödl S, Möstl E, Aurich J, Müller J, Aurich C. Cortisol release, heart rate, and heart rate variability in transport-naive horses during repeated road transport.. Domest Anim Endocrinol 2010 Oct;39(3):205-13.
- Alexander SL, Irvine CH. The effect of social stress on adrenal axis activity in horses: the importance of monitoring corticosteroid-binding globulin capacity.. J Endocrinol 1998 Jun;157(3):425-32.
- Ryu SH, Koo HC, Park YK, Kim JM, Jung WK, Davis WC, Park YH, Lee CW. Etiologic and immunologic characteristics of thoroughbred horses with bacterial infectious upper respiratory disease at the Seoul Race Park.. J Microbiol Biotechnol 2009 Sep;19(9):1041-50.
- Dunowska M, Wilks CR, Studdert MJ, Meers J. Equine respiratory viruses in foals in New Zealand.. N Z Vet J 2002 Aug;50(4):140-7.
- Newton JR, Wood JL, Chanter N. A case control study of factors and infections associated with clinically apparent respiratory disease in UK Thoroughbred racehorses.. Prev Vet Med 2003 Jul 30;60(1):107-32.
- Vairo S, Vandekerckhove A, Steukers L, Glorieux S, Van den Broeck W, Nauwynck H. Clinical and virological outcome of an infection with the Belgian equine arteritis virus strain 08P178.. Vet Microbiol 2012 Jun 15;157(3-4):333-44.
- Horsington J, Hartley CA, Gilkerson JR. Seroprevalence study of Equine rhinitis B virus (ERBV) in Australian weanling horses using serotype-specific ERBV enzyme-linked immunosorbent assays.. J Vet Diagn Invest 2013 Sep;25(5):641-4.
- Diaz-Mendez A, Viel L, Hewson J, Doig P, Carman S, Chambers T, Tiwari A, Dewey C. Surveillance of equine respiratory viruses in Ontario.. Can J Vet Res 2010 Oct;74(4):271-8.
- Back H, Ullman K, Treiberg Berndtsson L, Riihimäki M, Penell J, Ståhl K, Valarcher JF, Pringle J. Viral load of equine herpesviruses 2 and 5 in nasal swabs of actively racing Standardbred trotters: Temporal relationship of shedding to clinical findings and poor performance.. Vet Microbiol 2015 Sep 30;179(3-4):142-8.
- Erol E, Locke SJ, Donahoe JK, Mackin MA, Carter CN. Beta-hemolytic Streptococcus spp. from horses: a retrospective study (2000-2010).. J Vet Diagn Invest 2012 Jan;24(1):142-7.
- Lindahl SB, Aspán A, Båverud V, Paillot R, Pringle J, Rash NL, Söderlund R, Waller AS. Outbreak of upper respiratory disease in horses caused by Streptococcus equi subsp. zooepidemicus ST-24.. Vet Microbiol 2013 Sep 27;166(1-2):281-5.
- Velineni S, Desoutter D, Perchec AM, Timoney JF. Characterization of a mucoid clone of Streptococcus zooepidemicus from an epizootic of equine respiratory disease in New Caledonia.. Vet J 2014 Apr;200(1):82-7.
- Anhold H, Candon R, Chan DS, Amos W. A comparison of elevated blood parameter values in a population of thoroughbred racehorses.. J Equine Vet Sci 2014;34:651–655.
- Jain CN. The horse: normal hematology with comments on response to disease.. In: Schalm’s veterinary hematology 4th edition. Philadelphia: Lea & Febiger; 1986. p. 154–5.
- Borges AS, Divers TJ, Stokol T, Mohammed OH. Serum iron and plasma fibrinogen concentrations as indicators of systemic inflammatory diseases in horses.. J Vet Intern Med 2007 May-Jun;21(3):489-94.
- Corradini I, Armengou L, Viu J, Rodríguez-Pozo ML, Cesarini C, Jose-Cunilleras E. Parallel testing of plasma iron and fibrinogen concentrations to detect systemic inflammation in hospitalized horses.. J Vet Emerg Crit Care (San Antonio) 2014 Jul-Aug;24(4):414-20.
- Hultén C, Sandgren B, Skiöldebrand E, Klingeborn B, Marhaug G, Forsberg M. The acute phase protein serum amyloid A (SAA) as an inflammatory marker in equine influenza virus infection.. Acta Vet Scand 1999;40(4):323-33.
- Belgrave RL, Dickey MM, Arheart KL, Cray C. Assessment of serum amyloid A testing of horses and its clinical application in a specialized equine practice.. J Am Vet Med Assoc 2013 Jul 1;243(1):113-9.
- Coyne CP, Hornof WJ, Kelly AB, O'Brien TR, DeNardo SJ. Rapid extraction, radioiodination, and in vivo catabolism of 125I-labeled fibrinogen in the horse.. Am J Vet Res 1985 Dec;46(12):2578-81.
- Harvey JW, Asquith RL, McNulty PK, Kivipelto J, Bauer JE. Haematology of foals up to one year old.. Equine Vet J 1984 Jul;16(4):347-53.
- Santos FCC, Feijó LS, Kasinger S, Junior FF, Curcio BR, Nogueira CEW. Hematologic values of Thoroughbred foals from birth to six months of age.. Ciencia Anim Bras 2014;15:307–312.
- Hultén C, Demmers S. Serum amyloid A (SAA) as an aid in the management of infectious disease in the foal: comparison with total leucocyte count, neutrophil count and fibrinogen.. Equine Vet J 2002 Nov;34(7):693-8.
- Reed SM, Bayly WM, Sellon DC. Disorders of specific body systems.. In: Equine internal medicine 3 rd edition. St. Louis: Saunders; 2010. p. 736-40.
- Hooijberg EH, van den Hoven R, Tichy A, Schwendenwein I. Diagnostic and predictive capability of routine laboratory tests for the diagnosis and staging of equine inflammatory disease.. J Vet Intern Med 2014 Sep-Oct;28(5):1587-93.
- Burrell MH, Wood JL, Whitwell KE, Chanter N, Mackintosh ME, Mumford JA. Respiratory disease in thoroughbred horses in training: the relationships between disease and viruses, bacteria and environment.. Vet Rec 1996 Sep 28;139(13):308-13.
- Ivester KM, Smith K, Moore GE, Zimmerman NJ, Couëtilt LL. Variability in particulate concentrations in a horse training barn over time.. Equine Vet J Suppl 2012 Dec;(43):51-6.
- Robinson NE, Karmaus W, Holcombe SJ, Carr EA, Derksen FJ. Airway inflammation in Michigan pleasure horses: prevalence and risk factors.. Equine Vet J 2006 Jul;38(4):293-9.
- Holcombe SJ, Jackson C, Gerber V, Jefcoat A, Berney C, Eberhardt S, Robinson NE. Stabling is associated with airway inflammation in young Arabian horses.. Equine Vet J 2001 May;33(3):244-9.
- Whittaker AG, Love S, Parkin TD, Duz M, Hughes KJ. Stabling causes a significant increase in the pH of the equine airway.. Equine Vet J 2009 Dec;41(9):940-3.
- Berndt A, Derksen FJ, Edward Robinson N. Endotoxin concentrations within the breathing zone of horses are higher in stables than on pasture.. Vet J 2010 Jan;183(1):54-57.
- Vandenput S, Istasse L, Nicks B, Lekeux P. Airborne dust and aeroallergen concentrations in different sources of feed and bedding for horses.. Vet Q 1997 Nov;19(4):154-8.
- Clements JM, Pirie RS. Respirable dust concentrations in equine stables. Part 1: validation of equipment and effect of various management systems.. Res Vet Sci 2007 Oct;83(2):256-62.
- Hessel EF, Garlipp F, Van den Weghe HFA. Generation of airborne particles from horse feeds depending on type and processing.. J Equine Vet Sci 2009;29:665–674.
- Ivester KM, Couëtil LL, Moore GE, Zimmerman NJ, Raskin RE. Environmental exposures and airway inflammation in young thoroughbred horses.. J Vet Intern Med 2014 May-Jun;28(3):918-24.
- Davis MS, Royer CM, McKenzie EC, Williamson KK, Payton M, Marlin D. Cold air-induced late-phase bronchoconstriction in horses.. Equine Vet J Suppl 2006 Aug;(36):535-9.
- Davis MS, Williams CC, Meinkoth JH, Malayer JR, Royer CM, Williamson KK, McKenzie EC. Influx of neutrophils and persistence of cytokine expression in airways of horses after performing exercise while breathing cold air.. Am J Vet Res 2007 Feb;68(2):185-9.
- Carroll CL, Huntington PJ. Body condition scoring and weight estimation of horses.. Equine Vet J 1988 Jan;20(1):41-5.
- Millerick-May ML, Karmaus W, Derksen FJ, Berthold B, Holcombe SJ, Robinson NE. Local airborne particulate concentration is associated with visible tracheal mucus in Thoroughbred racehorses.. Equine Vet J 2013 Jan;45(1):85-90.
- Airaksinen S, Heiskanen ML, Heinonen-Tanski H, Laitinen J, Laitinen S, Linnainmaa M, Rautiala S. Variety in dustiness and hygiene quality of peat bedding.. Ann Agric Environ Med 2005;12(1):53-9.
- Saastamoinen M, Särkijärvi S, Hyyppä S. Reducing Respiratory Health Risks to Horses and Workers: A Comparison of Two Stall Bedding Materials.. Animals (Basel) 2015 Oct 8;5(4):965-77.
- Wålinder R, Riihimäki M, Bohlin S, Hogstedt C, Nordquist T, Raine A, Pringle J, Elfman L. Installation of mechanical ventilation in a horse stable: effects on air quality and human and equine airways.. Environ Health Prev Med 2011 Jul;16(4):264-72.
- Jørgensen GH, Aanensen L, Mejdell CM, Bøe KE. Preference for shelter and additional heat in horses exposed to Nordic winter conditions.. Equine Vet J 2016 Nov;48(6):720-726.
- Baumgartner M, Zeitler-Feicht MH, Wohr AC, Wohling H, Erhard MH. Lying behaviour of group-housed horses in different designed areas with rubber mats, shavings and sand bedding.. Pferdeheilkunde 2015;31:211–220.
- Cobb CJ, Obeidat BS, Sellers MD, Pepper-Yowell AR, Ballou MA. Group housing of Holstein calves in a poor indoor environment increases respiratory disease but does not influence performance or leukocyte responses.. J Dairy Sci 2014 May;97(5):3099-109.
- Crisman MV, Scarratt WK, Zimmerman KL. Blood proteins and inflammation in the horse.. Vet Clin North Am Equine Pract 2008 Aug;24(2):285-97, vi.
- Hultén C, Grönlund U, Hirvonen J, Tulamo RM, Suominen MM, Marhaug G, Forsberg M. Dynamics in serum of the inflammatory markers serum amyloid A (SAA), haptoglobin, fibrinogen and alpha2-globulins during induced noninfectious arthritis in the horse.. Equine Vet J 2002 Nov;34(7):699-704.
Citations
This article has been cited 3 times.- Junkkari R, Mykkänen A, Sulku P, Rantala M, Pohjanvirta T, Eklund M, Pelkonen S, Grönthal T. Occurrence, antibiotic susceptibility and genetic variation of Streptococcus zooepidemicus in Finnish weanling horses with and without respiratory infection. Acta Vet Scand 2026 Jan 27;68(1):7.
- Chatha MA, Ahmad N, Abbas MA, Saadullah M, Khan JA. Effect of the intrinsic and extrinsic factors on the growth and development of young foals under subtropical conditions of Pakistan. PLoS One 2025;20(1):e0310784.
- Robertson T, Thomas E, Starbuck G, Yarnell K. Global distribution and gap analysis of equine housing research: The findings so far and where to go next. Anim Welf 2024;33:e58.
Use Nutrition Calculator
Check if your horse's diet meets their nutrition requirements with our easy-to-use tool Check your horse's diet with our easy-to-use tool
Talk to a Nutritionist
Discuss your horse's feeding plan with our experts over a free phone consultation Discuss your horse's diet over a phone consultation
Submit Diet Evaluation
Get a customized feeding plan for your horse formulated by our equine nutritionists Get a custom feeding plan formulated by our nutritionists