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Evaluation of water treadmill training, lunging and treadmill training in the rehabilitation of horses with back pain. Data about efficacy of different training modalities during rehabilitation of horses with back pain is scarce. The aim of this study was to analyze the effect of water treadmill training, lunging and dry treadmill training in horses with back pain. Methods: Eighteen warmblood riding horses referred with confirmed clinical signs of back pain including abnormal responses to passive mobilisation were randomized into three groups to participate in a 6-week water treadmill training, lunging or dry treadmill program under otherwise identical conditions. Two clinicians, one blinded to the program, pe...
Histological Study of the Normal Proximal Third Interosseus Muscle Enthesis in the Equine Pelvic Limb. In human medicine, the enthesis, or tendon-to-bone insertion, is generally considered a linked entity or 'enthesis organ' and plays a crucial biomechanical role. This study aimed to histologically assess the equine proximal third interosseus muscle (suspensory ligament) enthesis in 10 pelvic limbs from 7 horses. The area of the proximal third interosseus muscle enthesis was divided into 6 compartments based on post-mortem computed tomography and prepared for histology using haematoxylin/eosin and trichrome staining. The proximal third interosseus muscle enthesis showed a fibrocartilaginous nat...
Population structure and signature of selection for body size in some Iranian and exotic horse breeds. Iran is home to genetically distinct horse breeds shaped by geography and history. Breeds like the Kurdish, Caspian pony, and Turkmen reflect deep-rooted diversity and unique adaptive traits. Objective: This study aimed to identify genomic regions exhibiting signatures of selection and to detect candidate genes and biological pathways related to body size that may influence performance in various Iranian and exotic horse breeds. Methods: Samples were collected from three Iranian native breeds (Caspian pony, Turkmen, and Kurdish) and three exotic breeds (Fell pony, Arabian, and Akhal-Teke) orig...
Plasma Activin A concentrations are not a useful biomarker for detecting insulin dysregulation and predicting laminitis risk in ponies. Circulating insulin concentrations are used to quantify risk of laminitis in currently non-laminitic ponies. Basal serum activin A (AA) concentration has previously been positively correlated with serum insulin concentrations 60 minutes (T60) following an oral sugar test (OST) in ponies with equine metabolic syndrome. Therefore, circulating AA might be a useful marker for insulin dysregulation (ID) and laminitis risk. Objective: To explore the relationship between circulating AA concentrations at baseline (T0) and T60 in ponies that developed laminitis within six months and non-laminitic ponie...
Shifting Paradigms: Imidocarb dipropionate as an alternative chemotherapeutic strategy for Trypanosoma evansi infection in animals. We report on the in vitro and in vivo success of Imidocarb dipropionate (IDP), an aromatic diamidine compound, as an effective drug against Surra-causing organism, Trypanosoma evansi. IDP is a clinically acclaimed drug for the treatment of babesiosis and anaplasmosis. We have also investigated cytotoxic effect of IDP on equine Peripheral mononuclear cells (PBMCs) and Vero cell line. The data generated indicate that the IC of IDP (2.73 µM) was significantly lower than its cytotoxic concentration (32.66 and 80.70 µM against PBMCs and Vero cell line, respectively). We have recorded signific...
Screening for Borna disease virus 1 (BoDV-1) in Austria: Absence of human cases in a retrospective case-finding study. Borna disease virus 1 (BoDV-1) is a zoonotic virus with a recently confirmed potential to cause rare but severe cases of encephalitis in humans. While the bicolored white-toothed shrew (Crocidura leucodon), which represents the reservoir, is widely distributed over eastern, central, and southern Europe as well as south-west Asia, human infections have so far only been reported from Germany. As infections in sentinels such as horses indicate the endemic circulation of the virus also in circumscribed regions of neighboring countries (Austria, Liechtenstein, Switzerland), we initiated a retrospec...
Reassessment of extracellular and intracellular activity of macrolides, rifampicin, and doxycycline against Rhodococcus equi based on bacterial counts and microscopy. is an opportunistic intracellular pathogen responsible for severe respiratory infections in foals, requiring prolonged antibiotic treatment. Despite its susceptibility to multiple antibiotics, the eradication of intracellular remains challenging due to its ability to persist and survive within alveolar macrophages. This study aimed to assess the extracellular and intracellular activity of rifampicin, doxycycline, and four macrolides against while assessing current methodologies used to differentiate intracellular and extracellular bacteria. We found that the removal of extracellular wit...
Phenotypic Associations Between Linearly Scored Traits and Sport Horse Auction Sales Price in Ireland. This study examines the associations between linearly scored phenotypic traits and auction sales prices of young event horses in Ireland, aiming to identify key traits influencing market value. Data from 307 horses sold at public auctions (2022-2023) were analysed using regression analysis, binary optimisation, and Principal Component Analysis (PCA). Regression identified Head-neck Connection, Quality of Legs, Walk length of Stride, and Scope as highly significant predictors of sales price ( < 0.001), with Length of Croup, Trot Elasticity, Trot Balance, and Take-off Direction also significa...
Clinical safety of intrauterine infusion of a uterine sanitizer in mares. Limited response to conventional therapies and rising antibiotic resistance emphasize the need for alternative treatments for infectious endometritis. A recent in vitro study showed promising antimicrobial activity of a commercial uterine cleaning sanitizer (UCS) against endometritis pathogens. However, its safety and efficacy in mares remain untested. Objective: This study aimed to assess the clinical safety of intrauterine infusion of UCS in reproductively sound mares. Methods: Exp. 1. Six healthy mares with endometrial biopsies classified as I or IIA had two intrauterine infusions of UCS pe...
Cold atmospheric plasma-aerosol treatment of equine dermatophytosis: a novel therapeutic approach. Dermatophytosis is a common fungal skin infection in horses, particularly affecting young and immunocompromised animals. Traditional treatments often involve antifungal medications with potential side effects. Here, we present a case report that evaluated the efficacy of cold atmospheric plasma-aerosol (CAP-A) as a standalone treatment for equine dermatophytosis. Unassigned: A 2-year-old Westphalian warmblood stallion presented with confirmed dermatophyte lesions restricted to the left side of the mouth which were treated with CAP-A. Treatment was administered 2 times daily for 12 consecutive ...
Outcomes of diode laser-facilitated ankylosis of the distal tarsal joints in horses: A retrospective study of 64 cases. To evaluate the outcomes of diode laser-facilitated (DLF) ankylosis using different surgical techniques to treat distal tarsal osteoarthritis (OA) in horses. Methods: Retrospective cohort study. Methods: A total of 64 client-owned horses with distal tarsal OA treated with DLF ankylosis between 2011 and 2021 in a referral hospital were included. Methods: DLF ankylosis techniques included: intra-articular diode laser (L), diode laser with periarticular drilling (L + D) and diode laser with cuboidal bone fenestration (L + F). Horses requiring a second surgery formed a fourth group (T). Ou...
Detection of Antibodies Against Leptospira interrogans Serovars Among Stabled Horses in Qazvin Province of Iran as a One-Health Concern. Leptospirosis, a global zoonotic disease caused by pathogenic Leptospira spp., poses significant health risks to both animals and humans. This study aimed to assess the seroprevalence of antibodies against Leptospira interrogans serovars in stabled horses in Qazvin province, Northwest Iran. From January 2023 to April 2024, a total of 83 blood samples were collected from asymptomatic horses using the microscopic agglutination test (MAT). Results indicated a seroprevalence of 40.96% (95% CI: 31-52), with notable variations among regions: 38.89% (95% CI: 27-52) in Qazvin, 38.46% (95% CI: 18-64) i...
Drivers of decision making in pain diagnosis and treatment: Findings from an ethnographic study of veterinary practice. Poor pain management in horses is a welfare concern. The 'diagnosis' of pain cannot be separated from the broader set of interactions through which it emerges. The interactions that take place during veterinary consultations shape the ways in which, or whether, pain management is discussed. Objective: To understand owners' and veterinarians' decision making in relation to chronic pain and its management. Methods: Qualitative ethnographic study. Methods: Data were collected from four veterinary practices in Great Britain between May 2023 and April 2024. Around 200 h of ethnographic observatio...
Blastocyst production by conventional in vitro fertilization (cIVF) in horses: Effects of sperm storage method, incubation timing of cool-stored semen before gamete co-incubation, and comparisons between cIVF and intracytoplasmic sperm injection (ICSI). Currently, Intracytoplasmic Sperm Injection (ICSI) on in vitro-matured equine oocytes obtained by transvaginal oocyte aspiration (TVA) is the method of choice for in vitro production of equine blastocysts in a clinical setting. A protocol for conventional in vitro fertilization (cIVF) using either fresh or frozen/thawed stallion sperm incubated under capacitating conditions (Tyrode's Albumin Lactate Pyruvate medium + penicillamine, hypotaurine, epinephrine; FERT-PHE) has been recently reported. Several factors that may impact the clinical applicability of this cIVF protocol have yet to be st...
Clinical Effectiveness of Dry Needling on Myofascial Trigger Points in Horses: A Prospective Algometric Controlled Study. Myofascial pain syndrome (MPS) is caused by trigger points (TrPs): hypersensitive spots in taut muscle bands that impair function and cause pain. Dry needling (DN) is a common treatment in humans, but evidence in horses is limited. This prospective, controlled study evaluated the effectiveness of DN in reducing TrP-related pain in the brachiocephalic muscle of horses. Of the 98 horses enrolled, 66 were allocated to a treatment group receiving weekly DN sessions for three weeks, while 32 were assigned to a control group with no intervention. Pain and function were assessed using pressure algome...
Identification of persistent clusters and temporal trends of glanders in horses throughout Brazil. Glanders, caused by Burkholderia mallei, is a zoonotic disease with profound socioeconomic and public health implications, affecting equines and humans. This study investigated glanders cases in Brazil from 2006 to 2023 to identify persistent clusters and analyze temporal trends, providing a foundation for the formulation of effective control policies. Official data were obtained from the National Animal Health Information System (SIZ) and Brazilian Institute of Geography and Statistics (IBGE), encompassing case notifications and equine population statistics by state and year. The incidence ri...
Association between radiographic equine distal phalanx characteristics and absence, presence and type of horseshoes. Most horses are used with horseshoes additionally supported by either dorsoabaxial or dorsal clips. The effects of such clips on bone density and shape of the distal phalanx are currently unclear. The aim of this study was to identify correlations between density and shape of the distal phalanx, comparing front hooves unshod or shod with standard shoes either with two dorsoabaxial clips or with a single dorsal clip. Researchers analyzed Oxspring radiographs of either the left or right front hoof from warmblood horses ( = 137) and ponies ( = 43) aged 3-28 years. The evaluation focused...
To Start or Not to Start-A Matter of Genetics in Swedish Warmblood Horses? The breeding goal of the Swedish Warmblood horse (SWB) is to produce internationally competitive horses in dressage and show jumping. In the current genetic evaluation, breeding values are estimated in multiple-trait animal models where competition performance is the target trait and results from two different young horse tests serve as indicator traits. However, preselection of horses, both for young horse tests and for competitions, is not considered in the current evaluation. The overall aim of this study was to analyse the all-or-none trait start status, in competition and in young horse t...
Platelet-derived mitochondrial preparation did not alter early inflammatory markers in a bilateral lipopolysaccharide-induced model of equine synovitis. To evaluate IA autologous platelet-derived mitochondrial preparation versus vehicle control in a bilateral lipopolysaccharide (LPS)-induced model of equine synovitis. Unassigned: 2 ng of LPS was injected into bilateral intercarpal joints of 6 horses over 3 months. Autologous mitochondria, isolated with a commercial kit, were injected into one joint, while the contralateral joint received a vehicle control, a within-subject controlled experimental design. Mitochondrial organelle appearance was visualized on transmission electron microscopy. Outcome measures included synovial fluid and whole-blo...
Tendon/Ligaments: Structure and Composition. The mid-metacarpal SDFT, intrasynovial DDFT and suspensory ligament are frequently injured soft tissues in the equine athlete. The mid-metacarpal SDFT exhibits a hierarchical structure and encounters repetitive strains at its functional limit. The intrasynovial DDFT possesses fibrocartilage where opposing bony surfaces to facilitate resistance-free gliding and contains chondrocyte-like cells embedded in a proteoglycan-rich ECM. While suspensory ligament enthesis injuries are common, collagen and non-collagen ECM structure-function specializations at the bone-ligament interface are understudied...
Injection site abscesses associated with commensal and environmental bacteria following intramuscular vaccination in horses. Five previously healthy horses in Korea, including a 19-year-old mixed-breed gelding, a 16-year-old mixed-breed mare, a 13-year-old Thoroughbred gelding, a 12-year-old Belgian warmblood mare, and a 12-year-old Andalusian mare, developed subcutaneous abscesses in the left neck after receiving intramuscular vaccination without prior skin disinfection. The vaccination used was Equivac® 2 in1, containing toxoid and cell-free extract. Within one week, the horses developed localised swelling and/or abscessation at the injection site. One case involved a ruptured abscess, while the others presente...
Clinical Updates on Superficial Digital Flexor Tendon Injuries: Insights on Diagnostic and Therapeutic Advancements. Superficial digital flexor tendinopathy is one of the most common orthopedic soft tissue injuries in horses. The veterinary challenge for this condition is less related to identifying the presence of the injury (as it is usually readily evident clinically) but more related to improving the healing process so that the healed tendon is more like normal tendon in biology and function in order to reduce reinjury, which is the key adverse consequence of the injury. Diagnostic imaging has improved in recent years to aid with treatment choices and monitoring the healing process.
Pathophysiology of penetrating captive-bolt stunning of horses. There has been limited research into the effectiveness of penetrating captive bolt (PCB) for stunning horses () at slaughter. This study observed 100 horses at a commercial abattoir in Mexico, stunned using pneumatic PCB. Animals were assessed at the time of stunning and immediately after for signs of effective/ineffective stunning and shot positioning, with macroscopic gross brain pathology conducted to determine brain trauma. Twenty-five percent (25/100) received more than one shot and 28% (28/100) displayed behavioural signs of ineffective stunning. Of these 28 animals, all had deviations o...
Genetic relatedness and antimicrobial resistance profiles of β-lactamase-producing Escherichia coli from environmental and animal sources in West Texas: a One Health approach. We aimed to determine the genetic relatedness among β-lactamase-producing Escherichia coli isolated from soil, lake water, and feces of geese, pigs, dogs, cattle, coyotes, wild hogs, and horses at one health interface in West Texas. Results: Previously isolated 56 β-lactamase-producing E. coli isolates from the feces of geese, pigs, horses, coyotes, dogs, cattle, and wild hogs, and soil and lake water from different locations in West Texas were analyzed for genetic relatedness using whole-genome sequencing, core genome multilocus sequence typing, and phylogenetic single-nucleotide polymorphi...
Gastric Candidiasis in Five Horses: A Case Series. spp. are ubiquitous yeasts that are part of most mammals' microbiota and can become opportunistic pathogens under predisposing conditions. Interestingly, recent studies in human medicine report an increased abundance of spp. in association with inflammatory bowel disease (IBD). Gastrointestinal candidiasis has been primarily reported in neonatal foals, but not in adult horses. The aim of this study is to describe the morphological, histopathological, and microbiological features of gastric lesions associated with infiltration in five horses referred to two tertiary hospitals for different r...
Horse Activity Participants’ Perceptions About Practices Undertaken at Activity Venues, and Horse Welfare and Wellbeing. Participation in horse-related activities frequently involves relocating horses from the home stable to an activity venue, which might require local, regional, or international travel. In these circumstances, horses are exposed to unfamiliar surroundings and experience changes to their daily routines, which could have negative welfare impacts. An online survey was conducted in 2021 to ask experienced horse sector participants about the horse management practices that they perceived worked well and provided for positive horse welfare when undertaken at venues. Qualitative analysis identified fo...
Transcriptomic sequencing and differential analysis of Kazakh horse muscles from various anatomical locations. Kazakh horses, a distinguished breed in China known for their dual-purpose use in milk and meat production, exhibit early maturation, tolerance to coarse feeding, and strong resistance to environmental stress. However, the gene expression differences across various muscle tissues of Kazakh horses have yet to be elucidated. In this study, transcriptomic sequencing was performed on muscle tissues from three anatomical regions of Kazakh horses, including the longissimus dorsi (Gb), external oblique (Gf), and diaphragm (Gg) muscles. In the Gb and Gf groups, 426 differentially expressed genes (DEGs...
Computed tomography identifies the proximodorsomedial subchondral bone of equine central tarsal bones as a predilection site for sclerosis, demineralisation and associated fractures. Background: The distribution pattern of central tarsal bone (CTB) changes has not been described, except for slab- and dorsomedial-plantarolateral fractures.Objectives: To describe CTB changes in CT and document their distribution and associations.Study designRetrospective case series.Methods: Standing and recumbent tarsal CT studies from 94 clinical cases were retrospectively evaluated. General case information, degree of sclerosis (none-severe), lesions (demineralisation, cystoid, fissure/fracture) and their location were recorded, dividing CTBs into 8 regions.Results: Eighty five of 94 tars...
Histopathological and molecular evaluation of hydatid cysts according to necropsy findings of 52 equids in Türkiye. is a parasitic cestode primarily maintained within an equine-canine life cycle, with horses, donkeys, mules, and other ungulates serving as intermediate hosts. Although has historically been considered non-zoonotic, recent molecular studies suggest that this assumption may need to be reevaluated. This study aimed to investigate the presence and molecular characterization of in equids from Türkiye. A retrospective analysis of 52 equine necropsies performed between 2020 and 2025 identified hydatid cysts in one Arabian horse and two donkeys. Gross and histopathological examination confirmed t...
“But my horse is well cared for”: A qualitative exploration of cognitive dissonance and enculturation in equestrian attitudes toward performance horses and their welfare. There is concern amongst the public, equestrians, animal welfare organisations, and horse-sport governing bodies regarding the welfare of performance horses, but equestrian culture appears slow to change. The present study seeks to increase our understanding of human factors underlying the persistence of welfare-compromising management and training practices within the performance horse world. Individual, semi-structured interviews focused on equestrians' attitudes were conducted with 22 equestrians from classical equestrian disciplines in the US, Canada, and the UK. Interview transcripts were...
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