Omneity® Pellets
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Pharmacokinetics of orally administered calcium dobesilate in Warmblood horses. Calcium dobesilate has recently been used for treating lameness in horses because it enhances microvascular processes and reduces intraosseous pressure. Lameness caused by disorders in bone metabolism and increased intraosseous pressure, such as navicular disease, osseous cyst-like lesions and pedal bone oedema, are commonly treated with rest, anti-inflammatory agents and surgery. Calcium dobesilate has the potential to influence the pathophysiology of these diseases, thereby improving healing. To determine whether calcium dobesilate and its acting agent calcium 2,5-dihydroxybenzene sulfonate ...
Effects of Sedation on Rectal Temperature During Equine Dental Procedures Performed in Cold to Warm Ambient Temperatures. Sedation is important for safe equine dental procedures, but it is unknown if there is a higher risk of sedation causing hypothermia in procedures performed during cold months. The authors hypothesize that sedation for a dental procedure will significantly decrease rectal body temperature in cold as compared to warm ambient temperatures. Adult equids ( = 246), from a private equine dentistry practice, that underwent dental equilibration, were selected for the study. Each horse's weight was estimated and sedation was administered intravenously (0.01 mg/kg detomidine and 0.01 mg/kg butor...
MHC compatibility influences the interaction between different types of equine mesenchymal stem/stromal cells and the local immune response. The allogeneic administration of equine mesenchymal stem/stromal cells (MSCs) has numerous advantages over autologous therapy, but their interactions with the patient's immune system need to be further elucidated. These interactions can be influenced by factors such as the compatibility between donor-receptor for the major histocompatibility complex (MHC) and by the MHC expression levels, which can change under different conditions like inflammatory exposure and chondrogeneic differentiation. In this study, we evaluated the local immune response induced by chondrogeneically differentiated (MSC...
Seropositivity for Pathogenic Leptospira in Dogs, Cats, and Horses at a Teaching Veterinary Hospital in Southern Chile. At a veterinary hospital in southern Chile, we conducted an epidemiological study involving domestic dogs, cats, and horses to determine the seropositivity for pathogenic spp., identify the infecting serogroups, measure antibody titers, and characterize seropositive animals by sex and age. None of the sampled animals showed clinical signs of leptospirosis. The microscopic agglutination test, using a panel of eight serogroups, was used for diagnosis. The seropositivity was 36.5% (95% confidence interval [CI] = 24.5-48.4) in dogs, 12.9% (95% CI = 2.6-23.1) in cats, and 45.2% (95% CI = 30.1-60.2...
Mitohormesis and Regeneration: Natural Compounds Chlorogenic Acid (CGA) and Isovanillic Acid 3-O-sulfate (IVAS) Boost Muscle Cell Recovery in the Equine Athlete Model. Skeletal muscle satellite cells ( SCs), essential for muscle regeneration, are a valuable model for studying exercise-induced stress relevant to human athletes. This study examined the effects of two natural compounds-chlorogenic acid (CGA) and isovanillic acid 3-O-sulfate (IVAS)-increasingly recognized as components of modern, nature-based recovery strategies. Their combination (Hybrid) was also tested on equine model of skeletal muscle satellite cells (ESCs) exposed to heat shock (40 °C, 1 h), mimicking exercise stress. Cells were treated with CGA (0.005%), IVAS (0.0005%), or both for 24...
Time-activity budget in horses and ponies: A systematic review and meta-analysis on feeding dynamics and management implications. The time-activity budget is a key indicator of animal welfare. This meta-analysis integrated 14 studies (1979-2020) with 364 horses under wild, natural-living, and stabled conditions to evaluate feeding, resting, standing, and locomotion. Objective: The study aimed to categorize daily behavioural patterns in equines, with emphasis on feeding behaviour. Methods: Fixed and random effects models, forest plots, and ANOVA assessed the influence of management, sociality, sex, age, body size, and feeding type. Results: Feeding was greater in free-ranging (56 %) than stabled horses (38 %; p < 0.0001),...
The predictive ability of blood-based biomarkers to detect bacteremia in hospitalized neonatal foals. Early and accurate identification of septicemia in neonatal foals improves survival. In human medicine, the neutrophil-to-lymphocyte ratio (NLR), neutrophil-to-monocyte ratio (NMR), monocyte-to-lymphocyte ratio (MLR), and plasma cell-free DNA (cfDNA) aid in early bacteremia detection. This study evaluated the diagnostic utility of these markers in conjunction with other clinical and hematological parameters in hospitalized foals < 5 days old to predict positive blood culture at admission and to distinguish between Gram-positive, Gram-negative, or polymicrobial bacteremia. A total of 391 foal...
Ionic composition of gastric reflux and small intestinal fluid in horses: implications for fluid replacement. Small intestinal (SI) distension and gastric reflux (GR) are common in horses with mechanical and functional ileus. Removal of GR results in fluid/ion losses. Objective: 1) Determine the capacity of healthy SI; 2) measure ion concentrations in normal SI fluid, GR, or fluid from SI undergoing resection. The authors hypothesized that Na and Cl concentrations would be lower and higher, respectively, in GR as compared to SI fluid from healthy horses, while there would be little difference in K concentration. Methods: Observational study: two to 15 meters of SI from 15 horses were distended with wa...
Adjuvant combination enhances immune response of equine influenza virus vaccine in horses. Despite routine vaccination, equine influenza outbreaks occur due to disparities of virus strains between vaccine and field, and immunity gaps between vaccinations. Objective: To evaluate whether a combination of adjuvants can enhance immune responses to equine influenza virus (EIV) vaccines. Methods: In vivo experimental study. Methods: Eight mixed-breed horses were immunised intramuscularly with a recombinant canarypox-based EIV vaccine, either alone or in combination with monophosphoryl lipid A (MPL) and polyinosinic-polycytidylic acid (poly I:C). A single vaccine dose was administered, and...
[Unilateral leiomyoma in the spermatic cord – a reason for intermittent colic in stallions?]. A 19-year-old Oldenburg stallion was presented multiple times over the course of several months with recurrent colic signs. At each examination, an enlargement of the scrotum was noted, which could not be further specified by palpation and ultrasonographic examination. The increase in circumference was noted both on palpation and on inspection and the size remained unchanged throughout. No special findings were noted during the general examination and the special examination of the colic patient. A few months after the first onset of symptoms, a chicken egg-sized mass was palpated on the right...
A serological test based on mutated recombinant Fasciola hepatica cathepsin L protease for the diagnosis of equine fasciolosis. Fasciola hepatica is a common trematode parasite of livestock in many regions, causing significant economic losses and affecting animal welfare. Horses rarely develop patent liver fluke infection. However, liver damage can affect animal health and welfare. Therefore, F. hepatica infection in horses may be underreported. Recently, a serological test for the antibody detection has been reported based on recombinant parasite cathepsin L1 (FhCL1) protease. Here, we optimized this enzyme-linked immunosorbent assay (ELISA) for antibody-detection in horses with equine fasciolosis based on recombinant...
Detection of Neorickettsia risticii in antemortem fecal and postmortem fetal samples, with genomic insights from complete genome sequencing of a strain recovered from an aborted equine fetus. Neorickettsia risticii (N. risticii) is an obligatory intracellular bacterium that causes Potomac horse fever (PHF), a disease clinically characterized by diarrhea, pyrexia, and laminitis in horses. Although sporadic reports of N. risticii infection have been linked to abortion in mares, a detailed retrospective study, including genomic analysis of the pathogen from an aborted fetus, has not been published. This study examined 546 fecal samples from clinically ill horses (January 1, 2017-December 31, 2024) and 833 colon samples from aborted equine fetuses (September 20, 2018-December 31, 2024)...
Cortisol and heart rate response of mares during the in-hand breeding procedure with and without restraint. In-hand breeding involving restraint methods is likely the most common practice in the horse breeding industry worldwide. However, welfare issues that arise from such management have not been investigated in detail. Objective: (1) To investigate whether the mares show increased stress responses during in-hand breeding using (a) a lip twitch and (b) hobbles. (2) To evaluate if the use of restraint methods influences the mare's expression of oestrous behaviour. Methods: Intra-individual cross-over design. Methods: Six Franches-Montagnes stallions and 10 warmblood mares were used in these experim...
In vitro and in vivo effects of Acacia mearnsii De Wild extract for cyathostomin control in horses. Anthelmintic resistance has led to the use of organic extracts as alternative methods of parasite control. Objective: The study aimed to assess the effects of Acacia mearnsii extract (tannin) on the control of cyathostomins in horses, both in vitro and in vivo. Methods: Thirty Pantaneiro horses naturally infected with cyathostomins were sourced from two distinct farms, designated as Farms A and B. At the start of the study, all third-stage larvae were cyathostomins, and an egg hatchability test (EHT) was performed using fecal samples from horses on both farms. Two randomized 28-day field studi...
Associations between endometrial swab bacteriology and cytology findings and live foal rates in Thoroughbred broodmares in the United Kingdom. To date, relationships between pre-covering endometrial swab cytology and bacteriology and fertility outcomes in Thoroughbred broodmares in the United Kingdom are unknown and could aid clinical decision making. Objective: To investigate associations between cytology and bacteriology findings from the last endometrial swab taken in the breeding season (15 February to 15 July) and live-foal rates (predicted mean probability of producing a live foal) in UK Thoroughbred broodmares. Methods: Retrospective cohort study. Methods: Endometrial cytology and bacteriology findings were extracted from labo...
How prior racing performance influences competition level in off-the-track Thoroughbred horses’ post-racing eventing careers. The ongoing discussion surrounding the well-being of retired racehorses underscores the importance of implementing effective rehoming strategies that prioritise animal welfare. A significant knowledge gap persists regarding whether a horse's success in racing can be used to reliably predict its performance in different equestrian sports upon retirement from racing. Objective: To examine the association between racehorse performance metrics and eventing metrics in off-the-track Thoroughbreds that compete in eventing within Australia. Methods: Racing metrics and eventing metrics for a sample of ...
Evaluating efficacy and strongyle egg reappearance period after ivermectin treatment in a Hungarian stud farm. Horses remain globally at constant risk of strongylid infections, with cyathostomins being particularly prevalent and abundant. It is essential to routinely monitor the efficacy of anthelmintics against equine nematodes. This study aimed to evaluate the efficacy of ivermectin against equine strongyles and estimate the strongyle egg reappearance period (ERP) following ivermectin treatment for the first time in Hungary. Fecal samples were collected from 57 Thoroughbred mares before treatment and at 2, 4, 5, 6, and 7 weeks post-treatment at a Hungarian National Stud Farm. Fecal egg counts (FECs)...
Risk factors associated with gastric disease prevalence in extensively kept horses in Iceland evaluated four times in a calendar year. It is unknown whether the high prevalence of Equine Squamous (ESGD) and Equine Glandular (EGGD) Gastric Disease in extensively grazed Icelandic horses in the autumn/winter is seasonally driven. Objective: To determine the prevalence of, and risk factors for, gastroscopically significant ESGD (ESGD:score of ≥2/4); gastroscopically severe ESGD (ESGD:score of ≥3/4) and gastroscopically significant EGGD (EGGD:score of ≥1/2) in extensively pasture-managed Icelandic horses at four timepoints. Methods: Prospective longitudinal cohort. Methods: Gastroscopy was undertaken in 80 Icelandic horses (...
High-quality, haplotype-resolved reference genomes of the Dutch warmblood horse and Friesian horse using trio binning. In horses, genetic diversity is predominantly observed between breeds, with little variation within breeds. The studbooks of the two largest horse populations in the Netherlands, the Dutch Warmblood horse and Friesian horse population, have ongoing conservation projects including collecting large-scale genotype and sequence data. The current reference genome, derived from a Thoroughbred horse can lead to bias in genetic analyses of other horse breeds. Therefore, the aim of this study was to create high-quality breed-specific reference genomes of Dutch Warmblood and Friesian horses. We performe...
Mutation rate and spectrum of germline de novo mutations in a closed population of Thoroughbred horses. Thoroughbreds have been maintained as a closed breed for over 300 years since the crossbreeding between Arabian stallions and English mares. Despite interest in germline de novo mutations across species, their frequency in horses, particularly in Thoroughbreds, remains largely unexplored. Objective: This study aimed to identify de novo mutations in Thoroughbreds and estimate their frequency within a genetically closed population. Methods: We performed deep whole-genome sequencing (≥230× depth, 150 bp paired-end reads) and Sanger validation in a Thoroughbred trio (sire, dam, and foal). Reads...
Laparoscopic cryptorchidectomy in 10 equids using a single incision laparoscopic surgery (SILS) port device. Minimally invasive laparoscopic surgical techniques are desirable in horses and other equids. A new approach called "modified single incision laparoscopic surgery (SILS) for equine cryptorchidectomy" is described, along with the postoperative outcomes of 10 equids. A SILS Port device (Covidien) was placed a 30- to 40-millimeter incision in combination with 1 or 2 15-millimeter para-inguinal incisions to exteriorize the intra-abdominal testicles. Ten animals, 2 bilateral abdominal cryptorchid horses and 8 unilateral abdominal cryptorchid equids, underwent cryptorchidectomy using the SILS tech...
Postbiotics and Parabiotics in Veterinary Medicine: A Market Overview. Postbiotics and parabiotics (PP) are innovative concepts in veterinary medicine that have garnered substantial interest owing to their unique properties and potential benefits. PP offers a promising alternative to live bacteria, demonstrating properties such as prebiotic, immunomodulatory, antimicrobial, anti-inflammatory, antioxidant, and anticancer effects, while potentially mitigating some of the common challenges associated with live bacterial applications. PP products are manufactured and commercially employed in livestock, poultry, and pets. Moreover, postbiotic-based commercial products...
Stable microclimates and autonomic modulation in horses housed in different stable architectures during monsoon in a tropical environment. The impact of climate conditions and stable design on horses housed in individual stalls plays a significant role in their well-being, especially in tropical climates. Limited information exists regarding their conditions during the monsoon season. Objective: This study focused on the stable microclimate and autonomic regulation of horses kept in different stable architectures during the monsoon in a tropical setting. Methods: Twenty-two horses were assigned to one of three stable designs, each offering unique microclimates, including relative humidity, air temperature, and various levels of n...
Cat, dog, and horse allergies: emerging new insights. Animal allergens, particularly those from cats, dogs, and horses, are significant risk factors for the development of allergic diseases in childhood. Managing animal allergies requires allergen avoidance and, when this is not feasible, specific immunotherapy. Patient history remains the cornerstone of diagnosis, providing the foundation for diagnostic algorithms. Extract-based tests, such as skin prick tests and specific IgE measurements, are essential for confirmation and screening. However, traditional extract-based diagnostic methods have notable limitations, as they are unable to distingui...
Ivermectin toxicosis in a foal: Use of intravenous lipid emulsion therapy. This report describes a case of ivermectin toxicosis in a 4-day-old thoroughbred colt successfully treated with intravenous lipid emulsion (ILE) without complications. This case supports the use of ILE as a safe and effective therapy for the management of lipophilic drug toxicosis in foals. Key clinical message: Ivermectin toxicosis, though rare in equine neonates, can occur following accidental overdose and induces severe neurologic signs. In this case, ILE administration resulted in rapid neurologic improvement and complete recovery without adverse effects, supporting its use as a safe and e...
PPARγ Agonism Modulates Synovial Macrophage and Cartilage Responses in an Equine Model of Synovial Inflammation-Implications for Joint Therapy. Synovitis resolution is critical for joint homeostasis and prevents the progression of osteoarthritis (OA). Treatments like NSAIDs and intra-articular corticosteroids relieve symptoms by blocking pro-inflammatory mediators, but also impair the production of pro-resolving mediators, contributing to the likelihood of chronic synovitis. PPARγ signaling is an essential mechanism of synovitis resolution, which is decreased in OA tissues. To evaluate the potential of PPARγ agonists to promote pro-resolving pathways, equine macrophages cultured in autologous, normal, or inflamed synovial fluid ( = ...
Microbial profile of post-breeding endometritis in Arabian mares from the Al-Hira District, Iraq. in Arabian mares poses a significant reproductive challenge, necessitating proper pathogen identification and antimicrobial susceptibility determination. Unassigned: To investigate the prevalence of intrauterine pathogens and their antimicrobial susceptibility patterns in Arabian mares with postbreeding endometritis. Unassigned: Seventeen Arabian mares were examined clinically and ultrasonographically. Uterine swabs were collected for bacterial isolation and antimicrobial susceptibility testing. Unassigned: Clinical endometritis was detected in 29.4% of the mares. Ultrasonographic examination...
Autologous conditioned serum IRAP efficacy for tendon and ligament injuries in horses: An observational study. Tendon and ligament injuries in equine athletes pose significant challenges, often leading to prolonged recovery, reduced performance, and increased risk of reinjury. Current treatment strategies, including conservative and surgical approaches, have shown limited success in fully restoring tendon integrity. Autologous blood derivatives, such as autologous conditioned serum (ACS), have emerged as potential regenerative therapies. However, the clinical efficacy of ACS in the treatment of equine tendinopathies remains under investigation. Unassigned: This study aimed to compare the clinical outco...
Retrospective Evaluation of Neutrophil-to-Lymphocyte Ratio in Horses That Required Emergency Laparotomy: 341 Cases of Noninfectious Causes of Gastrointestinal Colic (2019-2024). To (1) compare total nucleated cell count (TNCC) and neutrophil-to-lymphocyte ratio (NLR) at admission between horses with medically managed, large intestinal (LI) and small intestinal (SI) surgical colic; (2) compare TNCC and NLR between survivors and nonsurvivors; and (3) investigate associations between TNCC, NLR, surgical intervention, and outcome. Methods: Case-control study. Methods: Single, academic institution. Methods: A total of 341 adult horses diagnosed with noninfectious medical or surgical colic. Results: Admission TNCC did not differ between the medical and combined surgical gro...
Effect of Long-Term Freezing on Indirect Fluorescent Antibody Titers for the Diagnosis of Equine Protozoal Myeloencephalitis. Long-term freezing storage can alter the stability of proteins, thereby compromising accurate determination of indirect fluorescent antibody test (IFAT) titers that support the diagnosis of equine protozoal myeloencephalitis. Objective: Assess the effect of long-term storage at -80°C on IFAT against S. neurona and N. hughesi in equine serum and cerebrospinal fluid (CSF). Methods: Paired serum and CSF (n = 46), and serum only (n = 25) samples. Methods: Prospective study of samples stored 6-12, 13-18, and 19-24 months. Comparing antibody titers across time points, McNemar and Wilcoxon...
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