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Topic:Welfare
Equine welfare encompasses the physical and psychological well-being of horses, focusing on their health, comfort, and overall quality of life. This area of study addresses various aspects, including nutrition, housing, behavior, and management practices, aiming to ensure that horses are kept in environments that meet their physiological and behavioral needs. Research in equine welfare examines factors such as stress indicators, pain assessment, and the impact of human interactions on horse behavior and health. This page compiles peer-reviewed research studies and scholarly articles that explore the assessment, improvement, and implications of welfare practices in equine management.
Proteomic signatures of equine dental tooth tissues in ageing and disease. Ageing and dental disease in horses lead to structural and functional deterioration of dental tissues, yet their molecular signatures remain poorly characterised. Understanding how these processes alter the protein composition of enamel, dentin, cementum and pulp is essential for improving equine oral health and identifying biomarkers of degeneration. Objective: To characterise the proteomic profiles of equine dental tissues and determine age- and disease-associated changes, with the aim of identifying proteins consistently altered across conditions. Methods: Ex vivo proteomic study. Methods: ...
Unraveling the genomic architecture of hock conformation defects in Pura Raza Española horses. Conformational traits define a horse's shape and morphology, heavily influencing its functionality, sport performance, health, and appearance, making conformation a critical selection criterion in horse breeding. However, the genomic basis of conformational defects, specifically those affecting the hock, remains largely unexplored. This research aimed to identify the genomic regions associated with hock defects using a large cohort of Pura Raza Española (PRE) horses. A total of 58,930 horses were evaluated for hock angle, with 4,122 genotyped on high or medium density arrays. For this purpose...
Evaluating hormonal levels in plasma and saliva as temperament indicators in horses. Assessing the temperament of horses is important to ensure their welfare, management, and safety. This study evaluated the plasma-saliva relationships for cortisol, oxytocin, and serotonin, and explored their associations with temperament traits in 40 horses using enzyme-linked immunosorbent assays. Significant correlations were observed between cortisol (r = 0.441) and oxytocin (r = 0.587) concentrations, whereas serotonin showed a weak correlation (r = 0.133). Bland-Altman analysis revealed acceptable agreement for cortisol but substantial individual variability for oxytocin, despite its str...
Mitochondrial dysfunction in equine ageing: Current evidence and clinical implications for geroscience. Ageing is a complex biological process affecting a growing geriatric human and equine population worldwide. Mitochondrial dysfunction is considered one of the hallmarks of ageing, representing a multifaceted process. This review synthesises current findings on mitochondrial dysfunction in aged equines, drawing parallels with human medicine and identifying current knowledge gaps. Integrating findings from human and equine research may bridge existing challenges and offer new opportunities, including the development of novel translational models for ageing research. Furthermore, it highlights th...
Air pollution exposure during training impairs performance in Thoroughbred racehorses. Ambient air pollution contributes substantially to human morbidity and mortality, and athletes are recognised as a particularly vulnerable group. However, little is known about the impact of air pollution on equine athletes. Objective: To explore the relationship between air pollution exposure during the pre-competition training period and race day performance among Thoroughbred racehorses that competed on California racetracks. Methods: A retrospective longitudinal study. Methods: For each winning horse, pollutant exposure during the 21-day pre-competition training period was assigned using d...
The impact of barefoot racing in young Swedish trotters on career length. In several European countries, racing without shoes, i.e., barefoot, is a common strategy in trotting races to improve the speed of the horse. Why some trotters can race barefoot without damage to the hoof from excessive wear and others cannot, has been shown to partly be explained by differences in hoof composition. In particular, durable hind hooves are believed to be important to sustain racing without shoes. Also, variation in the proportion of the races the horse races with barefoot hind hooves, has been shown to be affected by genetic differences in Swedish Standardbred trotters (SB) and...
Welfare Assessment in Equine-Assisted Service (EAS) Horses. Equine-Assisted Service (EAS) horses can be exposed to stressors that affect their behavior and welfare. Previous studies investigated behavioral and physiological indicators (PI) only during therapy sessions. This study evaluated the frequency of stress and pain behaviors (FSPB) in horses with different riders, while assessing welfare through housing, management, and PI. Ten horses were observed during EAS sessions with three rider groups: able-bodied, clients with significant physical impairment, and clients with no significant physical impairment, totaling twenty-six riders. Behavioral data...
Beyond cortisol: evaluating serotonin, brain-derived neurotrophic factor, and oxytocin as indicators of equine welfare across three training regimens. BACKGROUND: Quantifying the balance between workload, stress, and recovery across equine disciplines remains challenging, and no single circulating biomarker provides a definitive index of welfare-related stress load. Cortisol, oxytocin, serotonin (5-hydroxytryptamine, 5-HT), and brain-derived neurotrophic factor (BDNF) may provide complementary information on endocrine and neuromodulatory responses. METHODS: Paired serum samples were collected from show jumping horses (n = 17) before and after competition, racehorses (n = 43 enrolled, n = 41 analyzed) before and after sessions at ...
A service provider perspective in Irish horseracing on the availability of retirement specific support services for professional jockeys and perceived barriers and facilitators to their use. Retirement can come at any time in horse racing due to the unpredictable nature of the sport. Preplanning for the retirement transition in sport has been reported to lead to faster adjustment to retirement and better transition for athletes. The purpose of this study was to highlight the current support services available to Irish horseracing jockeys to aid with career transitions and to a) explore perceived barriers and b) perceived facilitators to their use. Semi-structured interviews were conducted with 11 representatives from various racing bodies including the Irish Horse Racing Regulator...
Monitoring horse behaviour with deep learning models. Detailed analysis of stabled horse behaviour can reveal accurate information about its well-being. Advances in deep learning now allow these behaviours to be tracked without being invasive through the use of video data. This study evaluated a convolutional neural network for recognising standing, lying, and drinking behaviours in a horse housed in a wooden stall and recorded continuously over 29 consecutive days. Model predictions were compared with manually annotated ground truth data. Standing was detected with high precision (97.5%) and high recall (89.2%). Lying behaviour was classified wi...
The incidence of fatal and non-fatal injury in thoroughbred and Quarter Horse racehorses in Louisiana (2014-2022). The objectives of the study were to report the incidence of race-related injuries and equine fatalities in racehorses at the Louisiana racetracks from 2014 to 2022 for both Thoroughbred and Quarter Horse racehorses. Additionally, this study evaluated several factors that may be related to the occurrence of race-related injuries in racehorses in Louisiana. The average rates of equine fatal injuries (euthanized on or off track within 72 h of the race) were 1.70 ± 0.76 and 1.94 ± 0.89 per 1000 starts in Thoroughbred and Quarter racehorses, respectively. The average rates of non-fatal injur...
Assessment of acute and chronic pain in working horses and donkeys in Egypt and the influence of observer training. Pain assessment can support monitoring welfare in working equids. Objective: To assess agreement of structured pain scores before and after training observers and to assess differences in pain scores between working equids with or without acute or chronic pain and to compare them to non-working equids. Methods: In part 1, eleven veterinarians and nine technicians performed pain scores before and after training. Agreement with reference scores was analyzed with Intra Class Correlation (ICC) analysis. In part 2, pain assessments were performed in 96 donkeys (n=40 fit-to-work, n=21 acute pain, n=...
Social enrichment mitigates facial expressions and physiological indicators of short-term stress in horses. This study aimed to evaluate the ability of social noncontact environmental enrichment to facilitate social buffering and to characterize the emotional experience of horses subjected to restraint in stock by assessing physiological parameters and facial expressions. Pantaneiro horses (n = 11) were evaluated in a crossover design with two treatments: social noncontact enrichment during stock restraint and social isolation during stock restraint. Physiological parameters (heart rate, heart rate variability, respiratory rate, ocular temperature by infrared thermography, and auricular temperat...
Exploring the relationship between inhibitory control and coping behaviour in horses. The ability to flexibly adapt to the demands of a stressful situation is a key factor in successful coping. Appropriate coping is of critical importance in artificial environments, which may include novel and potentially stressful situations. Being able to inhibit immediate but counterproductive reactions, and thus exert inhibitory control, might allow to better adapt to the environment. Horses are required to flexibly adapt to various housing conditions and training techniques; however, not all horses successfully cope as evidenced by the prevalence of stereotypical behaviours. We tested 31 m...
Influence of riders’ physical activity on improving seat balance in the context of horse welfare – A pilot study. This study aimed to investigate the impact of gym exercises for riders on their posture and the subsequent effect on reducing discomfort for their horses during training, using electronic pressure sensors. The study involved 20 warmblood horses aged 5-10 years, regularly ridden under saddle, and four riders of similar height and body weight. The study group was divided into a control group (10 horses) and an experimental group (10 horses). The horses were trained 5 days a week for 60 days in total. Riders trained three times a week for approximately 60 minutes. The exercises were designed to i...
Age-Associated Differences in Paddock Locomotor Activity Among Senior Horses: A Pilot Observational Study. Turnout locomotor activity is a potentially informative indicator of health and welfare in older horses, yet objective field data in seniors remain limited. We examined whether a brief turnout recording could detect cross-sectional associations between chronological age and locomotor activity in senior horses in this study setting. In this single-site observational study, 28 senior Selle Français horses (17-35 years) contributed 122 paddock sessions (2 h each), with total distance and mean speed quantified using a Polar Team Pro sensor. Associations with age were assessed using linear mixed-e...
Delphi consensus on Thoroughbred yearling sales endoscopy in Australasia. Concerns regarding the reliability and consistency of yearling sales endoscopy in Australia and New Zealand have led to reduced industry confidence. Recent studies have clarified the relationship between yearling laryngeal function (YLF) grades and future outcomes. Objective: To build expert consensus on the most appropriate method for grading YLF, assess the clinical relevance of each grade on future race performance and prosthetic laryngoplasty risk, and develop guidelines for pre-sale endoscopic technique. Methods: Modified Delphi study. Methods: Anonymous, iterative surveys were distribute...
Money, morality, and nationalism: the contested sponsorship of the Falsterbo horse show. In early 2025, the Falsterbo Horse Show entered a title sponsorship agreement with Al Shira'aa Stables in the United Arab Emirates, prompting extensive Swedish media coverage and strong public reactions. This controversy offers an opportunity to examine how sport sponsorship becomes a site for moral and geopolitical boundary-making. Drawing on a Foucauldian understanding of discourse as a meaning-making practice, the study analyses 210 Swedish newspaper articles published between February and April 2025 to explore how power/knowledge operates through language and how sponsorship is discursivel...
An overview of the livestock microbiome: sheep, horses, cattle, camels, and chickens. The animal microbiome plays a crucial role in determining the health, productivity, and welfare of livestock species, including sheep, horses, cattle, camel, and chicken. These animal species were selected due to the high consumption of their products in Kazakhstan. Enhancing their productivity, while maintaining the safety and quality of meat and milk derived from them, represents a pressing research priority. This review article includes current research on the composition, diversity, and purposes of the microbiota found within different organ systems of these species. This study focuses on ...
Effect of season of collection and storage method on equine hair cortisol concentration. Serum cortisol concentration is one of the common physiological reference standards for evaluating stress in animals. However, it only evaluates acute stress at the moment of blood collection. Hair cortisol concentrations (HCC) could provide a method for assessing cortisol concentrations over extended periods of time, giving an estimate of chronic stress levels. In this case, high HCC results could help equine managers alter management practices to improve welfare. Objective: To evaluate the effect of the month of collection and the storage method on equine HCC. Methods: Tail hair was collecte...
Opportunities for agency in domestic horses: Applying the behavioural domain to increase equine welfare. Giving animals the opportunity to exercise agency can improve their welfare, but horse owners and researchers may not be aware of the growing body of agency research in other animals, and studies on agency and choice in horses are scattered across disciplines and not connected to each other or to broader theory. This paper summarises research findings on management of domestic horses through the lens of animal agency and explores the potential applications of research on choice, control, and challenge in animals to improve the welfare of horses.
Analytical Challenges and Emerging Detection Strategies of Synthetic Cannabinoids in Horse Doping Control. Synthetic cannabinoids (SCs) were originally synthesized to advance the understanding of the endocannabinoid system, facilitate disease research, and support the development of novel therapeutic agents. Compared with tetrahydrocannabinol, these compounds exhibit substantially higher psychoactive potency and enhanced receptor-binding affinity. The rapid and continuous evolution of SC derivatives presents significant challenges for analytical laboratories and increases the risk of misuse. Furthermore, SCs may be exploited to alter performance in both human and animal sports. The scarcity of comp...
Multi-Modal Feature Fusion and Hierarchical Classification for Automated Equine-Human Interaction Behavior Recognition. Automated recognition of equine-human interaction behaviors from video represents a significant challenge in computational ethology, with critical applications spanning animal welfare assessment, equine-assisted services evaluation, and safety monitoring in equestrian environments. Existing approaches to animal behavior recognition typically focus on single species in isolation, rely solely on facial expression analysis while ignoring full-body posture, or employ flat classification architectures that fail under the severe class imbalances characteristic of naturalistic behavioral datasets. Fu...
Ethological and clinical evaluation of the welfare of horses in draft competitions in Spain. Draft and pulling horses are used in a traditional equestrian sport in the Valencian Community (Spain), in which horses must pull a cart loaded with a weight equivalent to twice their body weight along a sand track. Although it constitutes cultural heritage, this practice raises questions about animal welfare since it involves working horses under demanding physical exertion. There are no studies evaluating the welfare of horses participating in these draft and pulling competitions using validated clinical, ethological, and physiological indicators, and the present work aims to fill this knowl...
Evaluation of Short-Term Stall Size Housing on the Behavior and Welfare of Domestic Horses (Equus caballus). Single-stall housing is a common system used for horses in various settings, including racing stables, riding schools, teaching and research facilities. Adequate stall space is necessary for horses to lie down and make postural adjustments, both of which are essential for equine rest and welfare. The Guide for the Care and Use of Laboratory Animals recommends a stall size of 144 ft2. However, not all stalls meet this size requirement, and there is limited literature supporting its use in terms of animal welfare. This study used a crossover design to compare behavioral and physiologic variables...
Priorities and Recommendations for Using Artificial Intelligence (AI) to Improve Equid Health and Welfare. Artificial Intelligence (AI) is being increasingly used for equid health and welfare. This study aimed to establish consensus on where and how AI should be developed to achieve maximum benefit in this field. A workshop involving 41 stakeholders generated statements about current welfare concerns, areas for AI development, and barriers and solutions to AI use. Statements were circulated through Delphi surveys (acceptance set at 75% agreement). One-hundred-and-six statements reached agreement. Ethological needs not being met and poor equid management practices were key welfare concerns. Particip...
Client-specific outcome measure for chronic osteoarthritis pain assessment in horses. Osteoarthritis (OA) is a prevalent cause of chronic pain and lameness in horses. Whereas lameness can be quantified using objective measures, the assessment of OA-associated pain remains challenging. This study aimed to evaluate the applicability of the Client-Specific Outcome Measure (CSOM), a tool widely used in small animals, for the assessment of chronic OA pain in horses through caretaker evaluation. Unassigned: Seventeen privately owned horses with confirmed OA were enrolled in a 20-week randomized, double-blind, placebo-controlled study. For each horse, three individual pain-related ind...
Air pollution exceedances routinely occur at Thoroughbred racetracks in the contiguous United States. To characterize spatiotemporal patterns of criteria air pollutants surrounding Thoroughbred racetracks in the US. Unassigned: We identified all active Thoroughbred racetracks from 2011 through 2024, linking their location with daily air quality data from the US Environmental Protection Agency (EPA) Air Quality System. Mean daily and annual pollutant concentrations within a 50-km bounding box of each racetrack were summarized using descriptive statistics and evaluated for monthly and annual trends. Exceedances were defined as any observation in which pollutant concentration met or exceeded the ...
An overview of the benefits of animal-assisted interventions in medical and therapeutic contexts for human health: cognitive mechanisms, sensory perception and welfare considerations. Animal-assisted interventions (AAIs) are programs that incorporate animals as a therapeutic factor to improve human well-being. To date, these programs have been associated with significant physical and physiological benefits to human health. Animals have been incorporated as monitoring companions, such as diabetes-alert and seizure-alert dogs. Moreover, animal therapy for people with mental health issues, physical impairments, or autism spectrum disorders has shown social and communicative benefits. Although AAIs are proposed as a complementary treatment approach to humans with mental health ...
Main causes of death in aged horses in a retirement facility in California can be attributed to the digestive and musculoskeletal systems. To determine the main causes of death in aged horses residing at a retirement facility in California. Unassigned: A retrospective cross-sectional study design was utilized to evaluate signalment, medical history, and necropsy reports of horses aged 20 years or older at death and housed at a single retirement facility. All cases underwent a standard post mortem evaluation from 2010 through 2020 by the University of California-Davis William R. Pritchard Veterinary Medical Teaching Hospital. Euthanasia decisions were made by the retirement facility staff in consultation with a veterinarian. The m...
