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Pilot Study: Simultaneous Daily Recording of Total Locomotor Activity and Heart Rate in Horses for Application in Precision Livestock Farming.
Animals : an open access journal from MDPI    April 22, 2025   Volume 15, Issue 9 1189 doi: 10.3390/ani15091189
Aragona F, Rizzo M, Arrigo F, Arfuso F, Fazio F, Giudice E, Pugliatti P, Piccione G, Giannetto C.Among physiological parameters, total locomotor activity (TLA) and heart rate (HR) are used as physiological indicators in animal welfare evaluations. The present study aimed to simultaneously record for 24 h the TLA and HR of ten clinically healthy horses housed in conventional individual boxes subjected to a natural photoperiod and temperature. An actigraphy-based data logger was placed on the headstall, and an equine HR monitor was placed around the chest to monitor TLA and HR, respectively. Activity was monitored with 5 min sampling intervals and HR with 5 s intervals. To make the data poi...
Serodiagnosis of equine infectious anemia by indirect ELISA based on a novel synthetic peptide derived from gp45 glycoprotein.
Veterinary research communications    April 22, 2025   Volume 49, Issue 3 174 doi: 10.1007/s11259-025-10707-x
Domínguez-Odio A, González LIC, Alfonso DM, Guevara-Hernández F, La O Arias MA, Zayas MP, Ríos MÁB.The transmembrane glycoprotein gp45 (implicated in virus-equine B lymphocyte binding and in subsequent infection) is an important protein used as an antigen in the serological diagnosis of equine infectious anemia, but synthetic peptides derived from its structure are not. Consequently, the present study aimed to determine the diagnostic performance of the Bio-AIELAB immunoassay (novel synthetic peptide P05/gp45) in comparison with a similar commercial assay (ELISA EIA, VMRD Inc, USA) and with the gold standard (AGID, LABIOFAM, Cuba). A total of 365 samples of sera from naturally infected Cuba...
Altered expression of collagen gene family members and its epigenetic background in equine Sarcoids.
Research in veterinary science    April 21, 2025   Volume 190 105656 doi: 10.1016/j.rvsc.2025.105656
Pawlina-Tyszko K, Semik-Gurgul E, Podstawski P, Herc W, Witkowski M, Ropka-Molik K.Alterations in the genes involved in the creation of the extracellular matrix (ECM) were observed in our earlier transcriptome studies of sarcoids and their cell culture model. For a complete characterization of the underlying molecular pathways, it is imperative to comprehend the involvement of ECM modifications in the oncogenic transformation of sarcoid fibroblasts. Thus, the aim of this investigation was to describe the expression patterns of a set of genes that are essential for the rearrangements of the extracellular matrix, namely collagen genes, and elucidate possible mechanisms underly...
Microscopic examination of haemoparasites and the first molecular detection of Theileria equi in horses in Myanmar.
Parasitology research    April 21, 2025   Volume 124, Issue 4 42 doi: 10.1007/s00436-025-08488-y
Khaing Y, Htun LL, Linn KS, Kyaw WO, Nwae TT, Chel HM, Win SY, Murata S, Nakao R, Nonaka N, Bawm S.The study aimed to determine the prevalence of blood parasites in horses and identify risk factors and molecular detection of piroplasm species (Theileria equi and Babesia caballi) of horses in Myanmar. Blood samples (n = 302) were collected from five regions of Myanmar. Blood smears were screened for presence of piroplasms. Samples positive for piroplasms were subjected to molecular identification using primers specific to the small subunit ribosomal RNA (SSU rRNA) of piroplasms. The overall prevalence of blood parasites (piroplasms, Trypanosoma spp., and microfilaria of Setaria equina) w...
Transcriptomic Biomarkers in Blood Indicative of the Administration of Recombinant Human Erythropoietin to Thoroughbred Horses.
Drug testing and analysis    April 21, 2025   doi: 10.1002/dta.3899
Cheung HW, Wong KS, Cheng PCF, Tsang CYN, Farrington AF, Wan TSM, Ho ENM.Erythropoiesis-stimulating agents (ESAs) continue to be a significant threat to the integrity of human and equine sports. Besides conventional direct testing, monitoring the biomarkers associated with the effects of ESAs may provide a complementary approach via indirect detection to enhance doping control. In this study, we applied RNA-sequencing (RNA-seq) to discover blood RNA biomarkers in Thoroughbred horses after administration with a long-acting form of recombinant human erythropoietin (rhEPO), methoxy polyethylene glycol epoetin beta, Mircera®. A single subcutaneous administration of Mi...
Welfare assessment of racehorses provides a baseline for continued monitoring.
Equine veterinary journal    April 21, 2025   doi: 10.1111/evj.14510
Annan R, Trigg L, Allen K, Hockenhull J, Valenchon M, Mullan S.Racehorse welfare continues to be a focus of stakeholders both within and outside of the industry, and there is a need for evidence-based animal welfare data. Objective: To gather data on racehorse welfare through a combination of animal-based observations and information about management practices, and to ascertain the feasibility of trained industry assessors carrying out a racehorse welfare assessment. Methods: Cross-sectional. Methods: Sixteen trained industry assessors conducted individual observations of 737 racehorses in 21 Flat racing (F), 27 National Hunt (NH) and 26 Dual-purpose (D) ...
Prevalence and molecular epidemiology of the novel equine parasite Theileria haneyi in China.
Equine veterinary journal    April 21, 2025   doi: 10.1111/evj.14505
Yang G, Chen Y, Chen K, Hu Z, Li J, Wang J, Guo W, Wang X, Du C.Equine piroplasmosis (EP), caused by Theileria equi (T. equi) and Babesia caballi (B. caballi), is a tick-borne disease with significant economic impacts on the equine industry. Theileria haneyi (T. haneyi), a newly identified pathogen of EP, is globally distributed but has not been reported in China, where its epidemiological patterns remain undefined. Objective: To develop diagnostic techniques for T. haneyi and to assess its prevalence and risk factors in China. Methods: Assay development and cross sectional survey. Methods: A nested PCR (nPCR) nucleic acid diagnostic technique targeting th...
Motor pathway evaluation by transcranial magnetic stimulation in Swedish horses with acquired equine polyneuropathy.
Equine veterinary journal    April 21, 2025   doi: 10.1111/evj.14506
May A, Hanche-Olsen S, Goehring LS, Matiasek K, Jäderlund KH, Zablotski Y, Gröndahl G.Acquired equine polyneuropathy in Nordic horses (AEP) is the most prevalent equine polyneuropathy in Norway, Sweden, and Finland and is characterised by pelvic limb knuckling due to metatarsophalangeal extension dysfunction. Objective: To evaluate the function of descending motor pathways in AEP using transcranial magnetic stimulation (TMS). Methods: An analytical, observational cohort design. Methods: Clinical findings and TMS results of 20 horses from an AEP outbreak in Sweden were evaluated at 5-month intervals. Latency time (LT) in milliseconds (ms) between coil discharge and onset of musc...
A segment-based framework for explainability in animal affective computing.
Scientific reports    April 21, 2025   Volume 15, Issue 1 13670 doi: 10.1038/s41598-025-96634-y
Boneh-Shitrit T, Finka L, Mills DS, Luna SP, Dalla Costa E, Zamansky A, Bremhorst A.Recent developments in animal motion tracking and pose recognition have revolutionized the study of animal behavior. More recent efforts extend beyond tracking towards affect recognition using facial and body language analysis, with far-reaching applications in animal welfare and health. Deep learning models are the most commonly used in this context. However, their "black box" nature poses a significant challenge to explainability, which is vital for building trust and encouraging adoption among researchers. Despite its importance, the field of explainability and its quantification remains un...
Agreement between subjective gait assessment and markerless video gait-analysis in endurance horses.
Equine veterinary journal    April 21, 2025   doi: 10.1111/evj.14516
de Chiara M, Montano C, De Matteis A, Guidi L, Buono F, Auletta L, Del Prete C, Pasolini MP.Subjective evaluation of gait by official endurance veterinarians (OEVs) is used to determine 'fitness-to-compete' in horses participating in endurance competitions. Objective gait analysis systems could aid in quick and verifiable judgements. Objective: To assess the agreement between objective analysis of head and pelvis vertical movement asymmetry performed with a markerless artificial intelligence motion tracking system (AI-MTS) and subjective lameness assessment performed by an accredited FEI OEV to judge horse gaits. Methods: Cross-sectional. Methods: During three endurance competitions,...
Effects of pasture consumption and obesity on insulin dysregulation and adiponectin concentrations in UK native-breed ponies.
Equine veterinary journal    April 21, 2025   doi: 10.1111/evj.14507
Barnabé MA, Elliott J, Harris PA, Menzies-Gow NJ.Insulin dysregulation (ID) and hypoadiponectinaemia (total [adiponectin] <7.9 μg/mL) are risk factors for laminitis. They are sometimes, but not always, associated with obesity. Objective: To investigate the effects of pasture consumption and obesity on ID and circulating total [adiponectin] in ponies. Methods: Longitudinal. Methods: Seven native-breed ponies with normal basal and post-oral sugar test (OST) [insulin] and body condition score (BCS) 4.3-5.5/9 were allowed to graze until they reached BCS 7/9. Ponies were then maintained at BCS 7/9 until completion of the study (week 22). Morph...
Evaluation of the Effects of Detomidine on Equine Myoelectrical Activity Using Electrointestinography.
Journal of veterinary emergency and critical care (San Antonio, Tex. : 2001)    April 20, 2025   Volume 35, Issue 2 120-130 doi: 10.1111/vec.13464
Munsterman AS, Dias Moreira AS, Kottwitz J.To evaluate the effects of detomidine on equine intestinal slow-wave activity and frequency distribution measured by electrointestinography (EIG). Methods: Prospective, experimental study. Methods: University teaching hospital. Methods: A convenience sample of twelve 7- to 21-year-old clinically normal horses. Methods: Horses were randomly assigned to saline control (four horses) or detomidine treatment (eight). After obtaining a 30-min baseline EIG, a saline or detomidine bolus was administered, followed by a constant rate infusion, and another EIG was recorded. Ultrasonographic examinations ...
Circadian Oscillation of Leukocyte Subpopulations and Inflammatory Cytokines over a 24-H Period in Horses.
Veterinary sciences    April 20, 2025   Volume 12, Issue 4 386 doi: 10.3390/vetsci12040386
The objective of the present study was to investigate the influence of daily rhythms on the immune and inflammatory systems in horses, considering white blood cell count (WBCs), leukocyte subpopulations (neutrophils, basophils, eosinophils, lymphocytes, and monocytes), CD4+, and CD8+ lymphocyte populations, interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α). Ten Italian Saddle horses (7-12 years old, body weight 480 ± 30 kg) underwent blood sampling every 4 h over a 24-h period. The COSINOR method was used to identify rhythms and their parameters. A one-way ...
Histological and morphometric changes in cardiac conduction fibers after spontaneous myocardial infarction in horses and dogs.
Veterinary world    April 19, 2025   Volume 18, Issue 4 827-836 doi: 10.14202/vetworld.2025.827-836
Gómez-Torres F, Ballesteros-Acuña L, Ruíz-Sauri A.Arrhythmic sudden cardiac death in dogs and horses often results from ventricular arrhythmia secondary to myocardial damage. Despite this, limited data exist on the histomorphometric changes in cardiac conduction fibers (CCFs) and cardiac conduction cells (CCCs) following spontaneous myocardial infarction (MI). This study aimed to characterize morphometric and histological alterations in conduction fibers and their junctions with cardiomyocytes in infarcted hearts of horses and dogs. Unassigned: Ten hearts from horses and 10 from dogs that had died suddenly were examined. Histological and immu...
Innovative approach in the treatment of comminuted proximal phalanx fractures in horses based on biomechanical modelling.
Scientific reports    April 19, 2025   Volume 15, Issue 1 13562 doi: 10.1038/s41598-025-95577-8
Turek B, Jankowski K, Pawlikowski M, Jasiński T, Domino M.Proximal phalanx (P1) fractures in horses are relatively common, and present significant treatment challenges, especially when the fractures are comminuted or infected. An innovative treatment approach includes attaching an external fixator to the third metacarpal bone (MC III), the healthy bone above fracture, to offload the injured P1 and protect it from load-bearing forces, particularly during post-surgical standing up. This study aims to develop the favourable mathematical and numerical models for screws configuration in this external fixator. Nine configurations (I-IX), varying in screw a...
Mesenchymal Stem Cells in Veterinary Medicine-Still Untapped Potential.
Animals : an open access journal from MDPI    April 19, 2025   Volume 15, Issue 8 1175 doi: 10.3390/ani15081175
Morawska-Kozłowska M, Pitas M, Zhalniarovich Y.Mesenchymal stem cells (MSCs) hold significant therapeutic potential in veterinary medicine due to their regenerative and immunomodulatory properties. This review examines the clinical applications of MSCs across multiple animal species, including equine, canine, feline, and bovine medicine. MSC therapies have demonstrated promising outcomes in treating musculoskeletal disorders, osteoarthritis, inflammatory diseases, and tissue injuries, particularly in horses and dogs. In cats, MSCs show potential for managing chronic kidney disease, inflammatory bowel disease, and asthma, while in bovine me...
Efficacy of Platelet-Rich Plasma in the Treatment of Equine Tendon and Ligament Injuries: A Systematic Review of Clinical and Experimental Studies.
Veterinary sciences    April 18, 2025   Volume 12, Issue 4 doi: 10.3390/vetsci12040382
Carmona JU, López C.(1) Background: Tendon and ligament injuries are a leading cause of lameness in horses, with significant economic implications. Platelet-rich plasma (PRP) has gained attention for its regenerative potential, but its efficacy remains uncertain due to inconsistent study designs and reporting. (2) Methods: This systematic review, following the PRISMA guidelines, evaluated 22 studies (clinical and experimental) to assess the safety and efficacy of PRP in treating equine tendon and ligament injuries. The risk of bias was analyzed using the ROBINS-I and RoB 2.0 tools. (3) Results: PRP demonstrated a...
Minimal disruption of equine gut microbiota by intravenous cephalothin treatment.
The Journal of veterinary medical science    April 18, 2025   Volume 87, Issue 6 690-696 doi: 10.1292/jvms.25-0105
Kinoshita Y, Niwa H, Ueno T.In horses, the gut microbiota plays a critical role in maintaining intestinal homeostasis and overall health, but antimicrobial administration can disrupt its balance, resulting in dysbiosis, which can cause antibiotic-associated diarrhea. This study assessed the impact of intravenous cephalothin sodium administration on the equine gut microbiota by using microbial amplicon sequencing targeting the 16S-ITS-23S rRNA operon. Fecal samples from 39 clinically normal horses, 16 antibiotic-treated horses (cephalothin, n=5; minocycline, n=5; metronidazole, n=6, each administered for 5 days), and seve...
Performance of a non-contact veterinary infrared thermometer and reference intervals of equine temperature at different body sites.
Frontiers in veterinary science    April 17, 2025   Volume 12 1583839 doi: 10.3389/fvets.2025.1583839
Alberghina D, Tombolani C, Quintavalla F.Evaluating the body temperature of horses () is essential for monitoring their health. Rectal thermometry is the most common method for determining the temperatures of adult horses and foals. However, this method requires restraining the animals for several seconds, and it poses potential risks to both horses and humans. This study compared infrared and rectal thermometry in 126 horses, evaluating age and measurement site influences on body temperature. Horses were divided into three groups: foals (4-12 months), Shetland ponies (8-12 months), and adult horses (2-30 years). Rectal, ocular...
Safety and efficacy of a feed additive consisting of an essential oil derived from the leaves of Pogostemon cablin Benth. (patchouli oil) for use in all animal species (FEFANA asbl).
EFSA journal. European Food Safety Authority    April 17, 2025   Volume 23, Issue 4 e9357 doi: 10.2903/j.efsa.2025.9357
Villa RE, Azimonti G, Bonos E, Christensen H, Durjava M, Dusemund B, Gehring R, Glandorf B, Kouba M, López-Alonso M, Marcon F, Nebbia C, Pechová A....Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of patchouli oil from the leaves of Benth. (patchouli oil) when used as a sensory additive in feed and in water for drinking for all animal species. The EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the additive under assessment is safe up to the maximum use level in complete feed of 7.5 mg/kg for chickens for fattening, laying hens, turkeys for fattening, pigs for fattening, horses, salmonids, shrimps, rabbits, dogs, cats...
Sodium Retention in Large Herbivores: Physiological Insights and Zoogeochemical Consequences.
Journal of experimental zoology. Part A, Ecological and integrative physiology    April 17, 2025   Volume 343, Issue 6 664-676 doi: 10.1002/jez.2924
Abraham AJ, Duvall ES, Doughty CE, Riond B, Ortmann S, Terranova M, le Roux E, Clauss M.The assimilation, retention, and release of nutrients by animals fundamentally shapes their physiology and contributions to ecological processes (e.g., zoogeochemistry). Yet, information on the transit of nutrients through the bodies of large mammals remains scarce. Here, we examined how sodium (Na), a key element for animal health and ecosystem functioning, travels differently through fecal and urinary systems of cows (Bos taurus) and horses (Equus ferus caballus). We provided a large dose of Na and compared its timing of release in feces and urine to that of nonabsorbable markers. Na excreti...
Differences between facilities in horse welfare profiles: slight differences in management/working conditions may be enough.
Animal : an international journal of animal bioscience    April 17, 2025   Volume 19, Issue 6 101520 doi: 10.1016/j.animal.2025.101520
Gueguen L, Palme R, Jego P, Henry S, Hausberger M.Many studies focus on animal welfare in terms of specific, either behavioural or physiological, indicators or on the impact of a particular management factor. However, an animal's welfare state results from the individual's perception of its general environment, which has consequences at both behavioural and physiological levels. Previous research on horses has shown that different riding schools could be characterised by different emotional/cognitive profiles of horses, in relation sometimes with one single management factor. In the present study, we aimed at determining if such facility-spec...
Intra- and Post-Operative Bacteriological Surveys of Surgical Site in Horses: A Single-Centre Study.
Microorganisms    April 17, 2025   Volume 13, Issue 4 doi: 10.3390/microorganisms13040928
Cerullo A, Di Nicola MR, Scilimati N, Bertoletti A, Pollicino G, Moroni B, Pepe M, Nannarone S, Gialletti R, Passamonti F.Bacterial contamination of the surgical site in horses is a major risk factor for the development of surgical site infections (SSIs), which increase morbidity, mortality, the hospitalisation period, antibiotic use, and management costs. While contamination is a prerequisite for infection, its progression to clinical infection depends on additional factors that compromise host defences. The present study, conducted at the Veterinary Teaching Hospital of the University of Perugia over an 11-month period, investigated bacterial contamination in 70 surgeries (53 clean and 17 clean-contaminated) at...
Prices for veterinary care of dogs, cats, and horses in Sweden and Norway: comparisons between corporate chain, government-run, and independent clinics.
Frontiers in veterinary science    April 17, 2025   Volume 12 1544996 doi: 10.3389/fvets.2025.1544996
Egenvall A, Valle PS, Hoffman R, Höglund OV, Byström A, Lönnell C, Bonnett BN.In a 10-15-year period, veterinary clinics in Sweden and Norway, as elsewhere, have undergone widespread corporatisation. High veterinary care costs have received attention in the lay press and from competition authorities. Whether corporate chains and independent clinics differ in price levels and how clinic characteristics, such as on-call service, affect pricing is not well-documented. The aim was to analyse prices levels and price changes for various diagnoses/procedures for dogs, cats, and horses from clinics in Norway and Sweden and to examine the influence of affiliation (corporate chai...
Metagenomic and proteomic analyses reveal similar reproductive microbial profiles and shared functional pathways in uterine immune regulation in mares and jennies.
PloS one    April 16, 2025   Volume 20, Issue 4 e0321389 doi: 10.1371/journal.pone.0321389
da Silva-Álvarez E, Gómez-Arrones V, Correa-Fiz F, Martín-Cano FE, Gaitskell-Phillips G, Carrasco JJ, Rey J, Aparicio IM, Peña FJ, Alonso JM....This study aims to unveil potential differences in the vaginal and uterine microbiomes in mares and jennies, and to identify possible mechanisms involved in uterine immune homeostasis. The microbiota was characterized using 16S rRNA sequencing, and the uterine proteome was analyzed using UHPLC/MS/MS in 18 samples from healthy mares and 14 from jennies. While taxonomic analysis revealed high interspecies similarities, β-diversity analysis showed distinct clustering, with only two vaginal taxa and five uterine taxa differing between species. Despite compositional differences, PICRUSt analysis s...
What is the “train track” in the retained equine testis?
Journal of equine veterinary science    April 15, 2025   Volume 149 105573 doi: 10.1016/j.jevs.2025.105573
Giorgio SD, Monti S, Palmieri V, Marino G, Napoli E, Vullo C, Catone G.A 3-year-old Quarter horse stallion with unilateral left cryptorchidism was referred for the absence of the left testis in the scrotal bursa and an enlarged right testis. The ultrasonographic examination revealed the presence of the left testis at the abdominal level. Two small hyperechogenic lines were observed running parallel and resembling a cylindrical cavitary foreign body, within a non-homogeneous area with blurred margins. The testis was removed by laparoscopy and macroscopically, the testis's cut section revealed the presence of two live adult nematodes emerging from 2 mm blood-filled...
[Diagnostic imaging of the equine cervical spine – Part one: Radiography – A review of the literature on findings and their clinical significance].
Tierarztliche Praxis. Ausgabe G, Grosstiere/Nutztiere    April 15, 2025   Volume 53, Issue 2 109-119 doi: 10.1055/a-2557-0115
Hellige M, Geburek F.A number of indications exist that necessitate radiologic examination of the equine cervical spine. Different neurologic and pain-associated clinical signs within the scope of lameness or poor performance may be associated to pathologies of the cervical spine. Moreover, the number of requests for radiographic examinations of the cervical spine, for example as part of the pre-purchase examination, has increased significantly in recent years. However, the interpretation of radiographs represents a challenge, particularly in the case of clinically sound horses, as it often necessitates the resolu...
Immunoaffinity chromatography for the preparation of equine tetanus immunoglobulin F(ab’)2 for enhanced safety and efficacy.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences    April 15, 2025   Volume 1259 124591 doi: 10.1016/j.jchromb.2025.124591
Gao X, Liu J, Xu K, Hu J, Xiao C, Wang D, Li C, Ji C, Yao X, Wang PG, Jing Y, He Y, Shen CK.Typically, the antigen-specific antibodies constitute a small fraction-often estimated to be around 2-10 %-of the total IgG in the serum after immunization. This low percentage necessitates the use of purification techniques to enrich the antigen-specific antibodies for therapeutic or research purposes. This study introduces an affinity chromatography column using NHS-activated Sepharose as a matrix and the tetanus toxin subunit C, TeNT-Hc-C869A, as a ligand, enabling the purification of polyclonal antibodies with high specificity. This process improves antitoxin purity to over 95 %, effecti...
Evidence of glycan mosaicism in the equine oviduct.
Journal of equine veterinary science    April 15, 2025   Volume 149 105574 doi: 10.1016/j.jevs.2025.105574
Jones CJP, Wilsher S, Aplin JD.We report a lectin histochemical study of oviductal ampulla and isthmus of thirteen mares euthanised at anestrus (1), estrus (5), 1-day post-ovulation (5) or diestrus (2). Staining with a panel of 5 lectins recognizing N-Acetylgalactosamine (GalNAc) residues revealed mosaicism in glycan expression in some specimens of ampulla and isthmus, peaking at estrus and 1-day post-ovulation (ov+1). In the ampulla, this presented as positively stained areas of both ciliated and non-ciliated cells in otherwise negatively-stained ampullae, ranging from small foci (diestrus) to areas up to 200 microns in le...
[Guttural pouch mycosis in a warmblood foal – Occlusion of the internal carotid artery using transendoscopic clip application].
Tierarztliche Praxis. Ausgabe G, Grosstiere/Nutztiere    April 15, 2025   Volume 53, Issue 2 132-137 doi: 10.1055/a-2519-7361
Himmele M, Engl JPM, Schwarz BC.The present report describes an 8-week-old warmblood foal presented following two episodes of epistaxis. The foal had a history of an umbilical infection, which had been treated with antibiotics when it was 8 days old. Four days before admission the filly showed severe, self-limiting epistaxis. The second hemorrhage occurred on the day of admission. The foal was lethargic and the remainder of the clinical examination unremarkable. A latero-lateral radiograph of the head revealed a fluid line within the guttural pouch. Endoscopy showed large amounts of blood within the pharynx and the upper thi...