Barriers to entering race training before 4 years of age for Thoroughbred horses born in the 2014 Australian foal crop.
Abstract: Currently, there is a paucity of data on the barriers for Australian Thoroughbred horses transitioning from stud farm to racetrack. This paper reports the reasons why horses failed to enter race training and documents their exit destinations. Biographical records of Australian Thoroughbred horses born in 2014 were investigated to determine the number of horses that had not officially entered race training by the start of the 4-year old racing season (1 August 2018). Of the 13,677 foals born in 2014, 66% had commenced training and 51% had raced before the beginning of their 4-year-old season in Australia. A sampling frame based on the post code of the premises where foals were born and records from Racing Australia were used to select a geographically representative sample of the 2014 Australian Thoroughbred foal crop (n = 4,124). From the population eligible for sampling 1,275 horses that had not entered training were enrolled in the survey and their breeders were sent an online questionnaire with follow-up phone calls for those who had not responded. Of the 633 responses (50% of 1275) the most frequent outcomes for horses were: death (38%, n = 239), participation in the racing industry in their 4-year old racing season (24%, n = 154) and retirement (16%, n = 100) either as Australian Stud Book (ASB) bloodstock (n = 17), or as horses rehomed outside the Thoroughbred industry (n = 83). Illness or injury was the most frequent reason for horses not entering race training that were ASB bloodstock, rehomed or deceased. There was a loss of traceability at the point of sale with most horses sold at 1 year of age. This study provides important information on the reasons, alternative outcomes and gaps in traceability for horses not entering training prior to the 4-year-old racing season.
Publication Date: 2020-08-05 PubMed ID: 32756576PubMed Central: PMC7406052DOI: 10.1371/journal.pone.0237003Google Scholar: Lookup
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- Journal Article
- Research Support
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Summary
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This research investigated the factors that prevent Australian Thoroughbred horses from entering race training by the time they are four years old. Results from a 2014 foal crop sample showed prominent reasons for failure mostly included illness or injury, with many horses also lost to traceability at the point of sale.
Objective and Methodology
- The aim of this study was to uncover the obstacles that prevent thoroughbred horses in Australia from starting race training before they are four years old.
- The researchers collected biographical data about Australian Thoroughbred horses born in 2014 and tracked how many had entered official race training by the start of the 4-year old racing season on 1 August 2018.
- The sample size amounted to 4,124 foals based on geographical reference points corresponding to the places where the foals were bred. Records from Racing Australia were also involved in the selection process.
- An online survey was sent to the breeders of 1,275 horses which hadn’t begun training, and those who didn’t respond got eventual follow-up phone calls.
Findings and Analysis
- Among the 633 breeders who responded, the eventual outcomes for their horses that hadn’t entered race training varied; 38% died, 24% eventually participated in racing in their 4-year-old season, and 16% retired (either as Australian Stud Book (ASB) bloodstock or rehomed outside the Thoroughbred industry).
- The primary reason these horses hadn’t begun race training was illness or injury.
- At the point of sale, most of the horses were one year old and there was a significant loss of traceability, creating a gap in the data.
Conclusions
- This study sheds light on the key factors that stop Thoroughbred horses from entering race training by the time they are four. Health problems are a key issue, but traceability problems at the point of sale also inhibit the progress of many horses.
- The results could be crucial for the industry in addressing these hurdles and improving the percentage of horses that start race training before they are four years old.
- In addition to exploring the reasons why some horses don’t enter race training, the study also documents the alternate paths these horses take. This information can help shape policy and practical guidelines to aid the industry.
Cite This Article
APA
Flash ML, Wong ASM, Stevenson MA, Gilkerson JR.
(2020).
Barriers to entering race training before 4 years of age for Thoroughbred horses born in the 2014 Australian foal crop.
PLoS One, 15(8), e0237003.
https://doi.org/10.1371/journal.pone.0237003 Publication
Researcher Affiliations
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia.
- Equine Centre, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee, Victoria, Australia.
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia.
- Asia-Pacific Centre for Animal Health, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia.
MeSH Terms
- Age Factors
- Animals
- Australia
- Breeding / economics
- Breeding / statistics & numerical data
- Female
- Horse Diseases / economics
- Horses
- Male
- Physical Conditioning, Animal / economics
- Physical Conditioning, Animal / methods
- Physical Conditioning, Animal / statistics & numerical data
- Pregnancy
- Sports / economics
- Sports / statistics & numerical data
- Surveys and Questionnaires
Conflict of Interest Statement
The authors have read the journal’s policy and have the following competing interests to declare: Racing Victoria Ltd. provided support for MLF in the form of a thesis stipend. However, the stipend is part of a research contract for a separate project (Racing Vic 045083 15/16) and not associated with this study. Racing Victoria Ltd. also provided support to ASMW to work on an unrelated project with a separate research group in the Melbourne Veterinary School. This does not alter our adherence to PLOS ONE policies on sharing data and materials. There are no patents, products in development or marketed products associated with this research to declare.
References
This article includes 23 references
- IER. Racing Australia Size and Scope Study. 2017.
- International Federation of Horseracing Authorities. IFHA Annual Report 2014. 2014.
- Bailey C. Wastage in the Australian Thoroughbred Racing Industry. June 1998.
- Jeffcott LB, Rossdale PD, Freestone J, Frank CJ, Towers-Clark PF. An assessment of wastage in thoroughbred racing from conception to 4 years of age.. Equine Vet J 1982 Jul;14(3):185-98.
- Bourke J. Wastage in Thoroughbreds. Proceedings of the Annual Seminar of the Equine Branch of New Zealand Veterinary Association 1995.
- Galvin N, Corley K. Causes of disease and death from birth to 12 months of age in the Thoroughbred horse in Ireland.. Ir Vet J 2010 Jan 1;63(1):37-43.
- Haas SD, Bristol F, Card CE. Risk factors associated with the incidence of foal mortality in an extensively managed mare herd.. Can Vet J 1996 Feb;37(2):91-5.
- Morley PS, Townsend HG. A survey of reproductive performance in Thoroughbred mares and morbidity, mortality and athletic potential of their foals.. Equine Vet J 1997 Jul;29(4):290-7.
- Cohen ND. Causes of and farm management factors associated with disease and death in foals.. J Am Vet Med Assoc 1994 May 15;204(10):1644-51.
- Burns BM, Fordyce G, Holroyd RG. A review of factors that impact on the capacity of beef cattle females to conceive, maintain a pregnancy and wean a calf-Implications for reproductive efficiency in northern Australia.. Anim Reprod Sci 2010 Oct;122(1-2):1-22.
- Crettenden J. Simple steps to “ewe-turn” your lamb weaning percentage. Grain & Graze 2014.
- Refshauge G, Brien FD, Hinch GN, van de Ven R. Neonatal lamb mortality: factors associated with the death of Australian lambs. Animal Production Science 2016;56(4):726–35.
- Tortora RD. A Note on Sample Size Estimation for Multinomial Populations. The American Statistician 1978;32(3):100–2.
- Stevens DL, Olsen AR. Spatially Balanced Sampling of Natural Resources. Journal of the American Statistical Association 2004;99(465):262–78.
- Anon. State and Territory (STE) ASGS Ed 2016 Digital Boundaries in ESRI Shapefile Format. 2016.
- Wilson EB. Probable Inference, the Law of Succession, and Statistical Inference. Journal of the American Statistical Association 1927;22(158):209–12.
- Lumley T. Complex Surveys A Guide to Analysis Using R. 2010.
- Australian Rules of Racing, (2019).
- Tanner JC, Rogers CW, Firth EC. The association of 2-year-old training milestones with career length and racing success in a sample of Thoroughbred horses in New Zealand.. Equine Vet J 2013 Jan;45(1):20-4.
- Tanner JC, Rogers CW, Firth EC. The relationship of training milestones with racing success in a population of Standardbred horses in New Zealand.. N Z Vet J 2011 Nov;59(6):323-7.
- Rogers CW, Firth EC. Musculoskeletal responses of 2-year-old Thoroughbred horses to early training. 2. Measurement error and effect of training stage on the relationship between objective and subjective criteria of training workload.. N Z Vet J 2004 Oct;52(5):272-9.
- Rogers C, Bolwell C, Tanner J, van Weeren PR. Early exercise in the horse. Journal of Veterinary Behavior 2012;7(6):375–9.
- Velie BD, Knight PK, Thomson PC, Wade CM, Hamilton NA. The association of age at first start with career length in the Australian Thoroughbred racehorse population.. Equine Vet J 2013 Jul;45(4):410-3.
Citations
This article has been cited 3 times.- Hill EW, Stoffel MA, McGivney BA, MacHugh DE, Pemberton JM. Inbreeding depression and the probability of racing in the Thoroughbred horse.. Proc Biol Sci 2022 Jun 29;289(1977):20220487.
- Shrestha K, Gilkerson JR, Stevenson MA, Flash ML. Drivers of exit and outcomes for Thoroughbred racehorses participating in the 2017-2018 Australian racing season.. PLoS One 2021;16(9):e0257581.
- Flash ML, Renwick M, Gilkerson JR, Stevenson MA. Descriptive analysis of Thoroughbred horses born in Victoria, Australia, in 2010; barriers to entering training and outcomes on exiting training and racing.. PLoS One 2020;15(10):e0241273.
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