Omneity® Pellets
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Equine histones are mobilized within equid alphaherpesvirus 1 (EHV1) replication compartments. Equid alphaherpesvirus 1 (EHV1) is a DNA virus that causes severe disease in equids. Some strains are neurotropic and cause disease in the central nervous system, whereas others are non-neurotropic and can cause negative reproductive outcomes. Mechanisms governing EHV1 pathotype are not understood. However, EHV1 pathotypes have different infection efficiencies and replication kinetics in various cell types. They are also differentially susceptible to epigenetic inhibitors. Aside from this observation little is known about EHV1 chromatin or how its regulation influences infection. To build know...
Modification and Validation of a Reference Real-Time RT-PCR Method for the Detection of a New African Horse Sickness Virus Variant. African horse sickness (AHS) is a disease affecting equids caused by the AHS virus (AHSV). The World Organisation for Animal Health (WOAH) includes AHS as a notifiable disease and, upon detection within the European Union, immediate control and eradication measures are mandated. Thus, validated diagnostic methods for rapid AHSV detection are essential. The Agüero 2008 and Guthrie 2013 rRT-PCR methods have been widely validated for detection of any AHSV strain and are included as reference rRT-PCRs in the WOAH manual. However, the WOAH Reference Laboratory for AHS in the Republic of South Afri...
Transcriptomic Insights into Tumor Necrosis Factor α’s Role in the Fibrosis-Related Processes of Equine Endometrial Fibroblasts. Equine endometrosis is a chronic degenerative condition of the endometrium. A hallmark feature of endometrosis is endometrial fibrosis accompanied by degenerative changes in the adjacent tissue structure. Tumor necrosis factor α (TNFα), a pleiotropic cytokine produced by various immune cells, plays a dual role in coordinating immune responses and regulating cell/tissue homeostasis, making it an important regulator of fibrotic-related disorders. However, the exact role of TNFα in the development of equine endometrial fibrosis remains to be discovered and explained. Therefore, the main aim of...
Uterine proteomic and cytokine profiling show that Streptococcus equi subsp. zooepidemicus induces immune-metabolic dysregulation and may predispose mares to endometrosis. This study aims to characterize and compare the uterine fluid proteome and cytokine profile of reproductively healthy mares (HM; n = 15) and mares with Streptococcus equi subsp. zooepidemicus (S. zooepidemicus)-associated endometritis (SAE; n = 9). Uterine flush samples collected during the follicular phase were analyzed by shotgun proteomics and multiplex cytokine assays. Equine proteins were mapped to human orthologs, and enrichment and network analyses were performed using g:Profiler, Metascape, ToppGene, and STRING/MCODE. SAE mares showed higher levels of IL-1α, IL-1β, GRO, IL12p...
Preliminary Assessment of Leisure Horses’ Preferences for Different Forms of Carrot (Daucus carota subsp. sativus). Cultivated carrot ( subsp. ) is a valuable component of equine diets due to its high β-carotene content (a precursor of vitamin A) and desirable sensory properties. However, its use may be limited by short shelf life, susceptibility to spoilage, and firm texture, which can be challenging for horses with dental problems. This study aimed to evaluate horses' preferences for different physical forms of carrots. Twenty-one leisure horses aged 3-22 years were individually evaluated in a free-choice test. Each horse was simultaneously offered equal portions (150 g) of five carrot forms: raw, grated...
Degenerative Changes in MCP/MTP Joints of Working Horses Without Lameness: Integrating CT-Based Assessment and Synovial Fluid Biomarkers. Working horses often develop distinct patterns of joint degeneration, yet research in this population remains limited. This study aimed to characterize degenerative changes in the metacarpophalangeal (MCP) and metatarsophalangeal (MTP) joints of Serbian Mountain Horses using computed tomography (CT) and to explore their associations with synovial fluid (SF) biomarkers. A cross-sectional analysis was conducted on 32 MCP/MTP joints from eight clinically sound horses. Postmortem, joints underwent CT imaging, and SF samples were analyzed for viscosity, protein content, total nucleated cell count (...
Oral administration of pimobendan in healthy horses results in low plasma concentrations. To describe the pharmacokinetics of a single dose of pimobendan (Vetmedin) in healthy adult horses and provide preliminary evidence of the absorption of 2 compounded pimobendan formulations. Unassigned: From August 2022 through November 2022, 6 healthy adult horses were administered a single dose of 0.5 mg/kg pimobendan orally. A subset of 2 horses was also administered pimobendan, compounded as an oil-based suspension and a capsule formulation. Plasma was collected at times 0, 15, 30, and 45 minutes and 1, 2, 4, 8, 12, and 24 hours after administration. The plasma concentrations of pimobendan...
Descriptive epidemiology of long-term injuries in jump racing Thoroughbreds in Great Britain. Race-related injuries in horse racing, especially those requiring extended recovery, are a welfare concern and threaten the sport's social licence. Previous studies predominantly report on fatalities; however, serious non-fatal musculoskeletal injuries often end horses' racing careers or have a high recurrence risk. No recent studies have described or quantified long-term injuries (LTIs) in racing Thoroughbreds, which is essential to inform targeted risk prevention strategies. Objective: To describe the types, frequencies and incidences of LTIs in British jump racing. Methods: Retrospective co...
Horse-racing injuries in children before and after the introduction of safety regulations in Mongolia. The aim of this study was to assess the effectiveness of safety regulations governing traditional Mongolian horse racing on the frequency and severity of injuries among child jockeys. Regulations introduced in 2019 mandate the wearing of helmets and protective clothing, prohibit the participation of jockeys aged < 7 years, and ban horse racing during the cold season (November-April). National injury surveillance data were used to compare the profile of injuries that occurred among children aged < 15 years in the 4-year periods before and after the introduction of the regulations (2015-2018 ...
Reining in strangles: Absence of disease in horses vaccinated with a DIVA-compatible recombinant fusion protein vaccine, Strangvac, following natural exposure to Streptococcus equi subspecies equi. Strangles, caused by Streptococcus equi subspecies equi (S. equi), is a prevalent infectious disease of horses. This is the first report on the use of a new vaccine, Strangvac, in a natural outbreak of strangles. Objective: To measure the effects of Strangvac vaccination during an outbreak of strangles at a Swedish farm. Methods: Longitudinal cohort study. Methods: Healthy horses (n = 17) were vaccinated on day 0, which occurred 23 days after strangles was first confirmed in three unvaccinated horses on the same farm. Blood serum samples were collected on day 0, day 28 and day 489. A com...
Outcome of Standardbred racehorses following femoropatellar arthroscopy for osteochondrosis dissecans. To evaluate postoperative racing performance of a population of Standardbred racehorses following arthroscopic removal of an osteochondrosis dissecans (OCD) lesion of the femoropatellar joint. Methods: Retrospective study. Methods: A total of 45 client-owned Standardbred racehorses. Methods: OCD lesions were measured and graded using the length of the subchondral bone defect from preoperative radiographs. Postoperative racing results were obtained from the United States Trotting Association, and follow-up owner surveys were conducted. A control group of contemporaneous paternal siblings free o...
Preliminary Biometric Study on Symmetry of Hoof Solear Aspect in Forelimbs in Four Horse Breeds. Correct conformation and symmetry of bilateral hooves are associated with a properly balanced hoof, which has a significant impact on the biomechanics of movement and reduces the risk of injury. The aim of the study was to compare solear aspect dimensions of bilateral hooves in forelimbs (hoof width, length, frog width, length, medial and lateral diagonals) with regard to sex, breed and age of horses. The dimensions were measured with a calliper in 100 horses of four breeds. The results showed that the breed factor significantly affected all dimensions. Age was significant for some variables, ...
Horses and ADHD: the ASTride intervention for cognitive and emotional growth. This study aimed to evaluate the efficacy of the Attention Skill Training (ASTride) protocol, an Equine-Assisted Occupational Therapy (EAOT) intervention, for children diagnosed with Attention Deficit/Hyperactivity Disorder (ADHD) in enhancing and promoting cognitive and emotional aspects including executive functions, self-efficacy, anxiety and hope perception. Methods: A prospective cohort study with an Interrupted Time-Series design was conducted. Fifty participants (mean age = 9.51 years, SD = 1.52) were assessed at four time points: baseline, pre-test (following a 12-week waiting ...
‘Pretty devastating’: exploring horse owner and veterinarian lived experiences of the equine Hendra virus. With more than 60% of emerging infectious diseases being zoonotic, we apply a One Health lens that connects human, animal, and environmental dimensions of the response to a Hendra virus (HeV) event. One Health promotes collaboration among health professionals, veterinarians, environmental scientists, and policymakers to strengthen health infrastructure and improve responses to complex health threats. HeV is an uncommon high-consequence and potentially fatal zoonotic disease endemic to parts of Australia. Previous research has largely focused on the uptake of preparedness measures by veterinari...
Antimicrobial-Resistant Enteric Gram-Negative Bacteria Isolated from a Fatal Diarrhea in a Horse: Genomic Characterization of CTX-M-2-Producing Escherichia coli. Infections caused by antimicrobial-resistant bacteria are difficult to treat and increase the risk of death in animals. This report describes a fatal case of diarrhea in a horse that, despite intensive treatment including surgery and broad-spectrum antimicrobials (ceftiofur and amikacin), experienced a worsening of its condition and subsequent death. A fecal swab sample was subjected to microbiological culture for the identification of bacteria and assessment of their phenotypical antimicrobial susceptibility profiles using the disk-diffusion and broth microdilution methods. The double-disk ...
Umbilical cord torsion abortion: the gross and histological features of affected umbilical cords and fetal membranes. Umbilical cord torsion (UCT) is the most frequent pathology of the equine umbilical cord (UC) and a prominent cause of abortion, yet objective data on its features remain limited. This study compared UCT with clinically normal pregnancies (CNP) to (i) identify gross and histological features of the UC and fetal membranes, (ii) determine whether UCT is associated with fetal growth restriction, and (iii) rule out infectious aetiologies. Gross and histological features of the UC, chorioallantois and amnion were compared between groups. Fetal weight and crown-rump length were analysed relative to ...
Lipid-rich abdominal fluid mimicking chyloabdomen in a horse. We report here a case of lipid-rich abdominal fluid in a 31-y-old Arabian gelding with acute colic. Abdominocentesis yielded opaque, yellow-to-orange peritoneal fluid with an elevated triglyceride concentration (42 g/L, RI: <0.10 g/L; fluid:serum triglyceride ratio 11.4, RI: <1.0). A second abdominocentesis performed 3 d later revealed clear fluid, suggesting transient chyloabdomen. Despite medical management, the horse developed respiratory distress secondary to pharyngeal edema and was euthanized. Autopsy identified a large omental lipoma and severe ulcerative gastritis, but no effusion....
Mosquito Exposure Risks in Equine Facilities: An Environmental-Managerial Assessment in Western Romania. West Nile Virus (WNV) is a mosquito-borne zoonosis with recurrent equine and human cases in Romania. Horses, although dead-end hosts, act as sentinels for local viral circulation. Farm-level risk conditions remain under-characterized. This pilot, exploratory cross-sectional study assessed 42 equine facilities in western Romania (2024). A standardized 10-item checklist was applied and a Composite Environmental Risk Score (CERS) (0-10, unweighted) was computed per facility. Spatial analysis in QGIS included distances to nearby water bodies. No serological or entomological data were collected; th...
Liposomal bupivacaine caudal epidural in horses results in adverse effects without analgesia. To evaluate the analgesic properties and adverse effects of liposomal bupivacaine administered via caudal epidural in horses. Methods: Pharmacodynamic study. Methods: A total of 10 healthy adult horses. Methods: Liposomal bupivacaine (10 mL; 1.3%) was administered into the caudal epidural space via an indwelling epidural catheter inserted to a length of 15 cm. Mechanical nociceptive threshold (MNT) testing with pressure algometry was used to measure analgesia at four anatomic locations for 72 h following injection. Physical examinations (including rectal temperature, heart rate, respirat...
Could “wild horses” drag you away? Quantifying muscular architecture in the forelimbs of extant, non-domestic equids (Perissodactyla: Equidae). Equid evolution is characterized by a high diversity of extinct species and morphologies, whereas extant equids share a superficially similar, monodactyl morphology. This inferred musculoskeletal similarity of modern equid limbs remains unexplored, and it is often assumed that domestic horse limbs are representative for wild equids (e.g., zebras, onagers, etc.). Our aim was to quantitatively describe the muscle architecture and arrangement of all forelimb muscles in extant wild Equus species to test this assumption, and investigate any differences between the species. We hypothesized that ther...
Agreement of the performance of equine electrocardiogram recording devices for ECG complexity analysis. Non-linear equine electrocardiography (ECG) analysis is an actively developing study area which has the potential to lead to novel, artificial intelligence-based diagnostic tools in equine cardiology. As more ECG recording devices are becoming available, there is a need to ensure results are interchangeable regardless of the equipment used to record the equine ECG. Objective: To evaluate the agreement of ECG complexity values obtained using the Televet™ and Equimetre™ systems. Methods: Cross-sectional clinical. Methods: ECGs were recorded using two devices simultaneously from 37 healthy Th...
Salivary cortisol concentration in western performance horses and riders: Associations with performance. Competition stress is a common factor influencing the success of performing athletes. However, few studies have quantified the physiological stress responses in horses and riders surrounding an equestrian event. Objective: The objectives of the current study were to determine salivary cortisol concentrations (SCC) as an indicator of stress in fifteen horse and rider pairs competing in western stock horse events and to investigate the relationship between SCC and performance. Methods: Subjects included male and female Quarter horses aged 3-15 years and equestrians aged 18-22 years. Salivary sam...
Endoscopically assisted transcutaneous placement of a balloon catheter in the medial guttural pouch compartment of the horse: A surgical approach to local treatment. To describe and report clinical outcomes after transcutaneous guttural pouch (GP) catheterization (TGPC) in standing horses. Methods: Ex vivo study and case series. Methods: One cadaver head, records of 10 normal horses and 14 horses treated with TGPC. Methods: Relevant anatomical landmarks were determined through dissection of one cadaveric specimen and 10 normal radiographic studies. Records of horses diagnosed with empyema or mycosis and treated with standing TGPC were reviewed for complications that occurred during or after the operation. Results: Ex vivo and radiological studies identifie...
Radiological assessment of equestrian-related trauma: A retrospective cohort study. Equestrian sports have been found to cause high rates of injuries. In clinical practise after such injuries, polytrauma protocol workups usually include whole-body computed tomography (WBCT), CT of the chest, abdomen and pelvis with intravenous iodine contrast medium, and CT of the cervical spine and brain without contrast. The purpose was to investigate the use of WBCT in equestrian-related accidents, to analyse demographics, mechanism of injury (MOI), therapy and severity of equine-related accidents, radiology, and the use of protecting equipment. Methods: This is a retrospective study inclu...
Computed tomographic myelography of the cranial cervical vertebral column in unaffected Warmblood horses – comparison of transverse vertebral ratios in the flexed and neutral cranial cervical vertebral column. Computed tomographic myelography (CTM) is diagnostic for extradural spinal cord compression but knowledge about vertebral ratios from transverse images in flexion and normal position of unaffected horses is lacking. Objective: To compare the ratios of the cross-sectional areas (CSAs) of the spinal cord, the vertebral canal and of the contrast enhanced dural tube on transverse CTM images at C3-C4 in neutral and flexed positions in unaffected Warmbloods. Methods: CTM was performed in 13 neurologically unaffected Warmbloods in neutral and flexed cervical vertebral column positions. Ratios were ca...
Opinions of trainers of Warmblood, Thoroughbred and Trotter horses in Germany on the pretraining management of yearlings and two-year-old horses – a qualitative analysis. The early career start of racehorses, the pretraining of two-year-old Warmblood stallions for licensing, and individual housing of young horses increasingly raise animal welfare concerns. Objective: Assess pretraining practices and the opinion of trainers on housing of young horses, minimum age to commence training and pretraining injuries. Methods: Qualitative interviews with trainers of Warmblood stallions and Thoroughbred and Trotter racehorses (n = 10 each). Results: Pretraining of Thoroughbreds and Trotters began at 18 months, whereas licensing preparation of Warmblood stallions began at ...
From clinic to lab: Sperm parameters for equine in vitro embryo production. Equine in vitro embryo production (IVP) offers a valuable opportunity to enhance the efficient utilization of genetically and economically valuable horses. In cases of subfertility, sudden death, emergency euthanasia, or limited sperm availability, IVP becomes the only viable option to produce offspring. Due to steadily improving success rates, IVP has become one of the most sought-after assisted reproductive techniques. The rising global demand has created a clear need for veterinarians and stallion owners to provide IVP-suitable sperm, where the selection of intact sperm for intracytoplasmic...
Traumatic injuries in polo players. To determine the frequency of traumatic injuries in polo players in England. Methods: The survey included data on body location and reason for injury derived from accident reports using a retrospective cohort design from 26 participating English polo clubs between the years 2018 and 2024. Results: The study population included injuries in 236 polo players. The most common injury site was the limb (arm, hand, leg, wrist, shoulder) 47.9% (95% CI: 41.4-54.5), and face or head 38.6% (95% CI: 32.3-45.1), of which 12.1% (95% CI: 6.2-20.6) affected the eyes. The most common reason to require hospital...
Metformin in the Horse: Pharmacokinetics and Detection Times Using Monte Carlo Simulations. The racehorse industry has strict regulations regarding the detection of prohibited substances in horses. Metformin, a diabetes medication, is a prohibited substance that has been reported in post-race blood and urine samples collected from racehorses. For further characterization of the disposition of metformin, 12 Thoroughbred horses were administered metformin orally and intravenously in a randomized, balanced, two-way crossover design. Serum and urine samples were collected, and drug concentrations determined via liquid chromatography-tandem mass spectrometry. The serum data were analyzed ...
Parental perceptions of the psychosocial outcomes of equine-assisted activities and therapies for children with autism spectrum disorder in Japan: a phenomenological study. Children with autism spectrum disorder (ASD) often experience challenges in social communication, behavioral regulation, and daily life adaptation. Equine-assisted activities and therapies (EAATs) have been implemented as complementary approaches to support psychosocial development. However, little is known about the experiences of parents in Japan whose children participate in EAATs. Unassigned: The study aims to qualitatively explore how parents in Japan perceive the psychosocial outcomes of EAATs for their children with ASD. By focusing on parental perspectives, this study seeks to clarify ...
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