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Topic:Warmblood Horses
Warmblood horses are a group of middle-weight horse breeds known for their versatility and performance in equestrian sports such as dressage, show jumping, and eventing. They are characterized by a combination of athleticism, temperament, and conformation, which make them suitable for competitive disciplines. Breeds within this group include the Hanoverian, Dutch Warmblood, and Holsteiner, among others. The breeding and selection processes for Warmbloods focus on traits such as movement, trainability, and soundness. This page compiles peer-reviewed research studies and scholarly articles that investigate the genetics, breeding practices, performance traits, and health considerations specific to Warmblood horses.
Pulmonary cryptococcosis with an endobronchial cryptococcoma in a Warmblood mare. This report describes pulmonary cryptococcosis with a large endobronchial cryptococcoma in an 8-year-old Warmblood mare. The mare was presented initially with fever and lethargy, and clinical signs typical of bacterial pneumonia. Markedly elevated serum amyloid A (SAA) concentrations indicated a severe systemic inflammatory response. Over a period of 6 wk, the condition progressively worsened and was refractory to multiple courses of broad-spectrum antimicrobial therapy as administered in a field setting. Diagnostic imaging following referral revealed extensive consolidation of the left lung a...
Spatial and temporal radiation exposure during equine bone scintigraphy: Implications for occupational safety and post-scintigraphy isolation. Bone scintigraphy is a valuable diagnostic modality in equine orthopaedics, but it is associated with occupational radiation exposure and regulatory requirements for post-procedural isolation. Objective: To quantify radiation dose rates emitted from horses undergoing bone scintigraphy, to evaluate the effects of distance (spatial) and time (temporal) on radiation exposure, and to derive evidence-based recommendations for post-scintigraphy isolation periods. Methods: Prospective, cross-sectional study. Methods: Twenty warmblood horses underwent musculoskeletal scintigraphy following intravenous...
Multi-Detector Helical Computer Tomography, Transrectal Ultrasonography and Histology of the Lumbosacral Area: A Comparative Study in Warmblood Horse Cadavers. Pain arising from the lumbosacral region is a recognized cause of poor performance and impaired welfare in horses. However, structural changes in the intertransverse joints (ITJs), lumbar articular process joints (APJs), and lumbosacral intervertebral discs (LSDs) may also occur in asymptomatic horses, complicating interpretation of imaging findings.This study evaluated these structures in 14 middle-aged Warmblood cadavers that were not lame according to the owners prior the onset of the problem that resulted in euthanasia or slaughter and correlated ultrasonographic (US) and computed tomograp...
Ostium-specific equine pulmonary vein myocardial sleeve gross anatomy and structural evidence of interatrial myocardial continuity with potential implications for ablation strategies. Pulmonary vein (PV) myocardial sleeves (MSs) harbour an arrhythmogenic substrate for atrial fibrillation. However, equine-specific data on MS distribution and wall thickness are limited yet essential for developing ablation strategies. In humans, posterior interatrial connections can compromise right-sided PV isolation. Objective: To study equine PV MS distribution, quantify ostial/branch diameters, antral lengths, characterise MS distal edge morphology, measure wall thickness and explore an interatrial myocardial continuity between the MSs of caudal branches draining through ostium III (PV II...
Infrared Thermographic Assessment of Exercise-Induced Changes in Local Surface Temperature in Horses Following Treadmill Training: Preliminary Findings. Physical exercise induces physiological adaptations associated with increased muscular activity, metabolic heat production, and changes in body surface temperature. Infrared thermography has emerged as a non-invasive technique for assessing these thermal responses in horses. The present study aimed to evaluate the ability of infrared thermography to detect changes in mean local surface temperature and to qualitatively assess alterations in thermal distribution patterns following treadmill exercise. Methods: Three clinically healthy Warmblood horses were monitored over 10 consecutive training s...
Inter- and intra-rater reliability of linear scoring in warmblood breeding. Reliable phenotypes are essential for successful animal breeding programmes. Subjective phenotypic assessment may lead to under- or overestimation of heritability estimates and thereby affect the power of genome-based analyses. In Warmblood horses, conformation traits are commonly assessed using linear scoring, but its reliability has not been sufficiently quantified. Objective: In this study, we investigated inter- and intra-rater reliability of linear scoring of conformation traits in German warmblood horses. Methods: Professional equine breeding experts (e.g. breeding judges) completed an o...
Antibody kinetics against tetanus toxoid before and after primary vaccination of foals. Vaccination recommendations for foals against Clostridium tetani vary. Available studies assessing foal immune responses, maternal antibody interference, or individual variation often used small foal numbers. Objective: To quantify antibody responses after tetanus vaccination in foals and explore associations with passively transferred tetanus antibodies. Methods: Longitudinal cohort study. Methods: Sixty-two Warmblood foals from a single stud farm were followed from birth to 360 days of age. Foals received tetanus vaccinations at day 180 (d180) and d220 of life. Serum samples were collected...
Does the Distance Between Ground Poles Affect Limb, Spinal and Pelvic Kinematics in Horses When Walking In-Hand? Polework exercise is commonly used in equine training and rehabilitation; however, the influence of pole spacing on locomotor kinematics remains unclear. This study investigated the effects of pole spacing on limb, thoracolumbar and pelvic kinematics in horses walking in-hand. Eleven warmblood horses were assessed during overground walking and over five ground poles set at 85%, 100% and 105% of forelimb step length. Pole spacing did not significantly alter maximum fore- or hindlimb retraction; however, protraction-retraction range of motion (ROM) was reduced at 85% spacing. Forelimb ROM was re...
The progression values of heart rate and biochemical plasma parameters during training of 3-years old warmblood stallions for breeding licensing. Physiological adaptation to training in young sport horses remains incompletely characterized, particularly during standardized preparation for breeding licensing. Objective: The aim of this study was to evaluate cardiovascular and plasma biochemical responses to acute exercise and long-term training in three-year-old Czech Warmblood stallions during standardized free jumping exercise. Methods: Thirteen Czech Warmblood stallions were monitored over a 112-day training period. Heart rate parameters (minimum, maximum, and mean) were recorded during standardized free jumping tests. Plasma biochemi...
Sport predispositions in warmblood horses: insights from Grand Prix competitions. The aim of this study was to pilot the assessment of sport predispositions in warmblood horse breeds, both domestic and foreign, and to evaluate factors influencing their performance. Data from 293 horses (725 starts) competing in national Grand Prix events with obstacle heights of 140-145 cm were analysed using general mixed models. The origins of Polish Halfbred Horses were examined, and correlations between results in the Young Horse Championships and later Grand Prix performance were assessed. Results showed that performance is significantly influenced by genetic factors, such as breed and...
Infection by Strongylus edentatus and Strongylus vulgaris in a warmblood crossbred foal in Ontario. A 6-month-old warmblood-cross filly was presented to the Ontario Veterinary College Large Animal Hospital (Guelph, Ontario) because of acute profuse diarrhea unresponsive to treatment and severe wasting. The filly progressed to obtundation over 4 d and was euthanized. Postmortem examination revealed multifocal hemorrhage within the extraperitoneal fascia and diaphragm with intralesional, 4-centimeter-long, white nematodes. In addition, verminous arteritis of the cranial mesenteric artery, right colic artery thrombosis with segmental colonic infarction, ulcerative colitis, and segmental fibrino...
Embryo developmental kinetics and vitrification in relation to pregnancy outcome, foaling percentage and foal sex. While fast in vitro embryo development has been associated with improved outcomes, the relationships of slow in vitro embryo development and vitrified versus fresh in vitro produced (IVP) embryo transfer to foaling percentage and foal sex are less explored. Objective: To determine the relationships of (1) day of blastocyst formation (D7-11 after intracytoplasmic sperm injection (ICSI)) and (2) vitrification and warming method (one- and three-step) versus fresh transfer with pregnancy, early pregnancy loss (EPL), foaling percentage and foal sex. Methods: Retrospective clinical study. Methods: B...
Age, embryo donor status, and insemination with chilled semen all predispose to persistent breeding-induced endometritis in warmblood mares. Persistent breeding-induced endometritis (PBIE) is a common reason for mares failing to establish pregnancy. Objective: To examine the hypothesis that advancing mare age and embryo donor status predispose to PBIE and compromise fertility. Methods: Retrospective analysis of the impact of mare age, breeding system (embryo donor versus broodmare), and semen type (chilled versus frozen-thawed) on the likelihood of PBIE and subsequent pregnancy/embryo recovery. Methods: Warmblood mares (n = 769) inseminated during 1745 oestrous cycles were divided into three age categories (≤6, 7-13 and ≥14...
Case Report: Physiological Stress Responses to Repeated, Standardized Short-Distance Transport in a Transport-Experienced Horse. Transport is a fundamental component of equestrian training and competition. However, even horses with extensive transport experience may exhibit physiological stress responses during routine travel. This case report describes physiological stress responses in a transport-experienced 10-year-old Belgian Warmblood gelding subjected to repeated, standardized short-distance transport. The horse was transported on 17 occasions along a fixed route to a riding school for dressage training using the same vehicle, handler, and protocol to minimize environmental variability. Physiological stress marker...
Successful nutritional management of a warmblood horse with multiple pathologies that respond to nutrition. This report describes the nutritional management of an 18-year-old, 553 kg gelding warmblood used for dressage lessons that presented with severe weight loss, marked muscle atrophy, poor dentition, sabulous urolithiasis, gastric ulcers, and later small colon impaction. On admission, the diet consisted of ad libitum wheat straw and mixed cereals (73:27 forage:concentrate), providing 2% of body weight as dry matter without vitamin-mineral supplementation. Marked deficiencies were identified in digestible energy (38%), crude protein (20%), lysine, threonine, vitamins, and minerals, while sugar an...
Haplotype GWAS in swedish warmblood horses for conformation and jumping traits. The aim of this study was to better understand the genomic architecture behind performance-related traits in sport horses. In this study, we conducted a haplotype-based genome-wide association study (GWAS) for 36 conformation and free jumping phenotypes recorded during routinely conducted young horse evaluation tests involving 380 Swedish Warmblood (SWB) horses. The horses were evaluated by expert judges using both traditional and linear evaluation systems. All samples were genotyped using the 670K Affymetrix® Axiom® Equine Genotyping Array, haplotypes were first phased, and haplotype blocks...
Case Report: Mesh repair of a urinary bladder dorsal wall defect following repeated cystorrhaphy in a warmblood foal. A three-day-old male Warmblood foal presented with inability to urinate. Primary diagnostic findings included abdominal distension, hyperkalemia, azotemia, and ultrasonographic evidence for free anechoic fluid in the abdominal cavity. Abdominocentesis confirmed the diagnosis of an uroperitoneum [peritoneal fluid to serum creatinine ratio (>2:1)]. Suture repair of a dorsal urinary bladder wall defect was performed, but leakage along the suture tracts resulted in recurrent uroperitoneum confirmed by computed tomographic urography after two days. Repeated cystorrhaphy was performed but uroperi...
Omics integration reveals how the gut microbiota of Warmblood horses responds to equestrian show jumping-a short-duration, high-intensity technical exercise stress. Intestinal microbial homeostasis and metabolic balance play a crucial role in maintaining normal physiological function in horses. Exogenous stress involving abrupt turns and jumps during show jumping significantly impacts intestinal microbial homeostasis and metabolic balance in these animals. Results: By comparing rectal (faecal) samples from 10 Warmblood horses collected before and immediately after a show jumping competition on the same day, we observed substantial alterations in intestinal microbial homeostasis and metabolic balance post-exercise. Microbial evenness significantly increase...
Horse Olfactory Exploration of Various Plants with Regard to Smell and Taste Familiarity. The sense of smell is the first sense by which horses determine the suitability of feed for consumption. The aim of the study was to assess the influence of the degree of familiarity with the smell and taste of plants on horses' olfactory exploration. Behavioural responses of twenty adult horses to nine herbs of three degrees of familiarity-least familiar (unknown in the first trial), known only by smell, and known by smell and taste-were investigated. During the tests, the horses were allowed to explore the individual herbs placed in a crib constructed to prevent them from eating the contents...
Assessment of baseline adrenocorticotropic hormone and insulin concentrations in healthy horses in Saskatchewan over a 1-year period. Endocrine disorders in horses, such as pituitary pars intermedia dysfunction and equine metabolic syndrome, rely on hormone testing for diagnosis, but seasonal and regional variabilities highlight the need for locally generated data. Objective: To characterize monthly blood concentrations of ACTH and insulin over 1 year in healthy horses in Saskatchewan. A secondary objective was to assess the association between these outcomes and the following factors: sex, age, breed, pregnancy status, level of exercise, body condition score, and cresty neck score. Methods: Sixty-eight clinically healthy, c...
Vectorcardiography at rest and during exercise in horses using the Delta (Δ) 12-lead configuration. Twelve-lead electrocardiography (ECG) is essential in human cardiology but remains poorly investigated in equine medicine due to a lack of standardization and inconsistent findings. Objective: Describe the normal vectorcardiogram (VCG) variation in horses at rest and during exercise using Delta 12-lead ECG, including repeatability and intra- and interobserver variations. Methods: One hundred two healthy Warmblood horses, aged 3-20 years, were examined at rest, of which 30 also during exercise. Methods: Prospective, observational study. Electrocardiograms were recorded using a Δ 12-lead confi...
Natural eggshell membrane supplementation for chronic lameness in warmblood horses: a 12-week prospective before-after study. Osteoarthritis is a leading cause of equine lameness, yet pragmatic evidence for nutraceuticals in horses remains limited. Unassigned: We prospectively evaluated 12 weeks of daily natural eggshell membrane (NEM; 12 mg/kg, orally) supplementation in Warmblood horses with chronic lameness using a single-arm before-after design. Ten horses were enrolled and prespecified paired contrasts compared visit 3 (V3, week 12) with baseline (V1). Outcomes included rider-reported under-saddle function (walk and trot), examiner-graded lameness (rest and walk-trot composite), simple joint-angle kinematics...
A topographic analysis of skin thickness in horses. A systematic study of regional skin thickness in different types of horses has not yet been described. Knowledge about regional skin thickness has long been used in human medicine to optimise wound care and skin grafting outcomes and similar knowledge could prove useful in equine wound management. The objective of the current study was to report the topographical variation in skin thickness of Warmblood (WB) and Coldblood (CB) type horses and to compare different methods for measuring skin thickness. Horses free of skin conditions and euthanised for reasons unrelated to this study were include...
Repeated intravenous dexamethasone administration causes transient changes in leukocyte parameters in healthy warmblood horses. To determine the effect of repeated IV administration of dexamethasone (0.06 mg/kg, q 24 h, twice) on WBC parameters in healthy adult horses. Unassigned: This prospective, longitudinal study was conducted from October 7 through November 5, 2024. Five warmblood mares received an IV dexamethasone sodium phosphate injection (DMI) at 0 and 24 hours and an IV injection with 0.9% sodium chloride solution at 48 and 72 hours. Blood samples were collected at 0, 6, 12, 24, 30, 36, 48, 72, 96, and 168 hours, and WBC parameters were evaluated using linear mixed-effects models. Unassigned: Leukocyte count,...
Vaccination-associated lameness in warmblood horses after intramuscular injection. Intramuscular vaccination is a routine component of equine medicine, but local muscle soreness may transiently affect gait symmetry. Objective data on vaccination-associated gait changes in horses are lacking. Objective: To investigate whether intramuscular vaccination induces measurable gait asymmetries depending on injection site, to inform recommendations on vaccination site selection and short-term exercise management. Methods: In this prospective, randomised, blinded, placebo-controlled study, eighteen clinically sound Warmblood horses were enrolled and received an intramuscular vaccinati...
Radiographic findings of candidate stallions presented for licensing at all German Warmblood horse-breeding associations in 2018-2020. Current studies on the health status of young German Warmblood stallions are lacking. Objective: To evaluate the prevalence of radiographic findings at licensing examinations of Warmblood candidate stallions and quantify the environmental influences on the distribution of recorded findings. Methods: In this retrospective observational study, records of 1693 radiographic examinations performed on 1678 German Warmblood stallions presented for licensing in 2018-2020 were reviewed. Data were provided by all German Warmblood horse-breeding associations and their official veterinarians. The collecti...
Radiographic Prevalence of Anatomical Variations of the Ventral Lamina of the Sixth Cervical Vertebra, C6/C7 Articular Process Joint Modelling and Competition Outcomes in Warmblood Sport Horses. Anatomical variations of the caudal ventral lamina of the sixth cervical vertebra (C6), referred to as equine caudal cervical morphologic variations (ECCMV), and radiographic modelling of the caudal cervical articular process joints (APJ) are commonly identified in sport horses, yet their interrelationship and relevance for athletic performance remain controversial. This retrospective observational study aimed to determine the prevalence of ECCMV and APJ modelling in a clinically sound warmblood sport horse population, to evaluate a potential association and to assess if ECCMV affects competit...
Heritability Estimates of Traits Assessed in Field Performance Tests of Polish Warmblood Mares. : Knowledge of the genetic background of evaluated traits has been the basis for genetic progress in every horse-breeding population and is essential for precise breeding and up-to-date decision-making. The study aimed to estimate the heritability coefficients for field performance traits in mares. : The research was based on 1408 evaluations of mares conducted during the years 2002-2021 in 51 training centers in Poland. The preliminary analyses of the effects, significant for the investigated traits, were obtained using analysis of variance, and these additional data are also presented (SAS p...
Upwards or onwards? Assessment of objective gait quality parameters in three European horse breeds at walk and trot. Europe has many horse breeds differing in conformation, gaits and genetics due to diverging breeding goals. Research studies comparing objective gait parameters between different horse breeds are limited and date back a decade. Objective: In this study, objective gait parameters were measured in three European breeds, namely Lusitanos (LUS; n = 52), Franches-Montagnes (FM; n = 311) and Swiss Warmblood (WB; n = 40) using an inertial measurement system (sensors at poll, withers, pelvis and all four canon bones) at walk and trot. Results: At walk and trot, LUS moved significantly slower than WB a...
PCR-RFLP method applied for identification of Warmblood Fragile Foal Syndrome carriers in Polish warmblood horses. The method for identifying the causative mutation for Warmblood Fragile Foal Syndrome (WFFS) involved PCR amplification of a 259-base pair fragment of the PLOD1 gene and its digestion with the restriction enzyme Aci I was developed, allowing for the clear detection of WFFS carriers. Eight WFFS carriers were detected among 308 warmblood horses kept in different farms across Poland, giving an overall frequency of 2.59%, which indicates a rather low frequency of the causative mutation for WFFS in Poland. Further research should be conducted on a larger number of horses, particularly those breeds ...
