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Topic:Mule
Mules arena distinct equine species with unique physiological and behavioral characteristics. Horses, belonging to the species Equus ferus caballus, are domesticated animals known for their speed, strength, and versatility in various roles, including riding, racing, and work. Mules, on the other hand, are hybrid animals resulting from the crossbreeding of a male donkey (jack) and a female horse (mare). They inherit traits from both parents, often exhibiting the endurance and hardiness of donkeys combined with the size and strength of horses. Mules are typically sterile due to their hybrid nature, possessing 63 chromosomes, an intermediate number between horses and donkeys. This page compiles peer-reviewed research studies and scholarly articles that explore the genetic, anatomical, and behavioral differences between mules and horses, as well as the mule's role in agriculture, transportation, and recreation.
Prevalence and Molecular Characterisation of Cryptosporidium spp. and Giardia duodenalis in Equines in Algeria. Limited data are available on the epidemiology of Cryptosporidium spp. and Giardia duodenalis in equines in Algeria. No prior molecular data existed on giardiasis in this host population. Objective: This cross-sectional study aimed to determine the prevalence and molecular diversity of Cryptosporidium spp. and G. duodenalis in equines across multiple regions of Algeria, and to characterise species, subtypes and assemblages present. Methods: Between December 2021 and December 2022, 197 faecal samples were collected from 104 horses, 89 donkeys, 2 ponies, 1 zebra and 1 mule from 46 private farms,...
Seroprevalence and risk factors of African horse sickness in equines in central Gondar, Ethiopia. African horse sickness is a severe vector-borne viral disease of equines, associated with high mortality and substantial economic losses. In Ethiopia, where equines are essential for transport and agriculture, the disease remains endemic, yet epidemiological data are limited in many areas. This study aimed to estimate the seroprevalence of African horse sickness virus (AHSV) and describe variation in seropositivity across selected factors in equines in the Central Gondar Zone, Ethiopia. A cross-sectional study was conducted from December 2024 to August 2025, during which 384 serum samples were...
Fecal microbiota of weaned equine and mule foals grazing bermudagrass pastures. Weaning is a critical period in the lives of foals. After weaning, forage consumption represents a major challenge for both equine or mule foals. Objective: This study evaluated the fecal bacterial concentration, composition, diversity and differential abundance in weaned equine and mule foals under rotational grazing on Bermudagrass (Cynodon spp.) pasture. Methods: A randomized design was used with equine and mule foals grazing two rotations on three Bermudagrass cultivars (Coastcross, Florakirk, and Tifton-85). Pasture rotation occurred every 20 days. The first rotation was evaluated at 20, ...
Prevalence and spatial distribution of Brucella spp. seropositive equids from the state of Mato Grosso, Brazil. Brucellosis is a chronic infectious disease in equids, characterized by suppurative lesions in joints and bursae, with potential impacts on animal performance and public health. Objective: To investigate the prevalence and spatial distribution of Brucella spp. seropositive equids in the state of Mato Grosso, Brazil. Methods: A total of 3,858 serum samples from 3,230 horses, 602 mules, and 26 donkeys were analyzed using the Buffered Acidified Antigen Test (AAT) and Complement Fixation Test (CFT), following Brazilian Ministry of Agriculture guidelines. Samples were obtained from all municipaliti...
First molecular detection of Theileria haneyi infection in horses in Southern Spain. Equine piroplasmosis (EP) is a tick-borne disease of equids caused by the hemoparasites , and . , a close relative of that causes mild clinical signs under experimental conditions, has been reported in several countries, adding complexity to EP ecology, diagnosis, and treatment. However, its presence in Spain remains unknown, which is concerning given the country's importance in equine genetics and international trade. Hereby, we investigated the presence of in blood samples from equids in Spain. Unassigned: Blood samples from 222 equids (218 horses, two donkeys, two mules) suspected of EP a...
Prevalence, risk factors, and antimicrobial resistance of Staphylococcus aureus in equines in Egypt. Staphylococcus aureus is a common commensal organism in both humans and animals, frequently colonizing the skin and nasal cavities of healthy individuals, although it can also cause a wide range of severe infections. The present study investigated the prevalence and risk factors of S. aureus in equines, along with antimicrobial resistance patterns of methicillin-resistant S. aureus (MRSA) isolates. The results revealed a prevalence of 38.6% in nasal samples collected from equines, highlighting the organism's significant presence and potential to cause infections in these animals. A genotypic p...
Glanders: Past, Present and Future of a Neglected Zoonosis as a Threat in Veterinary and Human Health. Burkholderia mallei is the causative agent of glanders, a serious zoonotic disease of major concern for both animal and human health. This highly contagious and potentially fatal bacterium is always classified as a biothreat agent. In this review, we covered a comprehensive overview of glanders, including the biology of the pathogen, epidemiology, pathogenesis, diagnosis, control strategies and ongoing eradication programs in Eurasia. We also summarized human case reports, differential diagnosis, treatment and organism's antimicrobial properties. The section on vaccine development is among the...
Hematological and Biochemical Profiles in Mule and Horse Neonates from Birth to 30 Days of Age: A Comparative Study with Clinical Perspectives. Few studies have evaluated hematological and biochemical parameters in mule foals, and neonatal reference data remain limited. Objective: To compare hematological and biochemical parameters in mule and horse neonates up to 30 days of life. Methods: Mule (n=15) and horse (n=16) neonates were evaluated at birth, 12 and 24h, and at 7 and 30d of age. Results: Mules had higher mean corpuscular hemoglobin concentration (g/dL; 33.85 ± 0.18; P=0.04), platelets (× 10³/µL; 342,179 ± 15,691; P=0.0051), albumin (g/dL; 3.24 ± 0.05; P=0.0039), calcium (mg/dL; 12.27 ± 0.14; P=0.03), chloride (mmol/L; ...
Common Radiographic Findings in Moroccan Working Equids: A Retrospective Study (2015-2022). Working equids are at high risk of musculoskeletal disorders due to strenuous labor, repetitive tasks, and harsh environmental conditions. This retrospective study describes the distribution of radiographically detected musculoskeletal findings in working equids presented to four Society for the Protection of Animals Abroad (SPANA) centers in Morocco, based on 498 animals and 1125 radiographs collected between 2015 and 2022. The study population was mainly composed of horses (78.1%), followed by donkeys (15.3%) and mules (6.6%). Most were males (65.7%), and the majority were between 5 and 15 y...
Equine piroplasmosis: an emerging tick-borne threat to equine health. Equine piroplasmosisis a tick-borne haemoprotozoan disease of equine population (horses, mules, donkeys and zebras) caused either by T. equi or B. caballi. Clinically it is characterized by pyrexia, hemolytic anemia and jaundice. Intravascular hemolysis and development of oxidative stress are key pathological alterations. Disease is endemic in almost all part of world (tropical, subtropical, temperate regions) except some courtiers which are EP free like US, UK, Northern Europe, Iceland and New Zealand. These countries follow strict quarantine measures and T. equi infection leads to developmen...
Equine Infectious Anemia Virus in Equids: A Large-Scale Serosurvey in Western Europe. Equine Infectious Anemia (EIA) is a notifiable disease caused by Equine Infectious Anemia Virus (EIAV), with major sanitary and economic importance for equids worldwide. There is limited and outdated information on the circulation of EIAV in many European countries. In the present study, we aimed to assess virus exposure in different equid species in Western Europe. Methods: Between 2011 and 2023, a cross-sectional study was conducted to investigate the seroprevalence of EIAV in 1676 equids (1444 horses, 106 donkeys and 126 mules/hinnies) from four European regions: Andalusia (Southern Spain; ...
Equine infectious anemia in Brazilian equestrian tourism horses: serological, molecular, and biochemical assessment showing high EIAV seroprevalence and elevated gamma-glutamyl transferase (GGT) levels. Equine infectious anemia (EIA) is a chronic disease caused by the equine infectious anemia virus (EIAV), a member of the Retroviridae family and the Lentivirus genus. Most infected animals are asymptomatic carriers, which makes clinical diagnosis challenging. This study aimed to conduct a clinical and laboratory evaluation of EIA in equids used for equestrian tourism in Jericoacoara National Park, Ceará, Brazil. A total of 112 equids (104 horses and 8 mules) underwent clinical, hematological, biochemical, serological, and molecular assessments. The EIAV seropositivity rates were 11.6% by AGID...
Immunohistochemical and molecular confirmation of West Nile Virus associated polioencephalomyelitis in a mule from Southern Brazil. West Nile fever is a zoonotic arboviral disease caused by the West Nile Virus (WNV), responsible for deaths in humans, mammals, and birds with associated neurological manifestations. All previous investigations of WNV from Brazil were based primarily on serological and molecular analyses and in humans, equids, and birds in the northern and southeastern regions of the country. This study describes the pathological and molecular findings observed in a mule, from the state of Paraná, southern Brazil, that died during an outbreak involving equids with clinical manifestations of a neurological dis...
Comparative Study of Reprogramming Efficiency and Regulatory Mechanisms of Placental- and Fibroblast-Derived Induced Pluripotent Stem Cells (iPSCs) in Mules. As an interspecies hybrid inheriting genetic material from horse and donkey lineages, mules provide a unique model for studying allele-specific regulatory dynamics. Here, we isolated adult fibroblasts (AFs) and placental fibroblasts (PFs) from mule tissues and reprogrammed them into induced pluripotent stem cells (iPSCs). Intriguingly, placental fibroblast-derived iPSCs (mpiPSCs) exhibited reduced reprogramming efficiency compared to adult fibroblast-derived iPSCs (maiPSCs). Through allele-specific expression (ASE) analysis, we systematically dissected transcriptional biases in parental cell t...
Cytoplasmic and nuclear Survivin expression in healthy gastric mucosae of equids: A comparative study between horses, donkeys, and mules. Information regarding Survivin protein expression in the gastric mucosa of equids is scarce. This protein has been associated with functions related to modulating apoptosis and promoting mitosis in epithelial cells and is considered part of gastric cytoprotection mechanisms in humans and mice, maintaining mucosal integrity and regulating cellular renewal. Objective: This study aimed to determine the expression of cytoplasmic and nuclear Survivin in gastric mucosae of equids (horses, donkeys, and mules). Methods: A total of 30 healthy stomachs, 10 from each species, were evaluated using histolo...
Stoicism or Defeat? The Psychological Impact of the Kiln Environment on Working Donkeys and Mules. One of the most problematic situations for the estimated 60 million working donkeys and mules across the world is within the brick kiln environment. In countries such as Egypt, Nepal, India and Pakistan, donkeys and mules carry dried bricks into small kilns either by pulling carts or carrying loaded packs. The health and welfare problems of this environment are well documented: they may carry excessive loads; work long hours, have difficulties accessing food, water and rest options; and can frequently suffer untreated illnesses including dental problems, lameness and open wounds from poorly fi...
Streptococcus equi subsp. zooepidemicus: Epidemiological and Genomic Findings of an Emerging Pathogen in Central Italy. subsp. (SEZ) is a major problem in equine veterinary medicine. Typically, a commensal in horses, SEZ can cause severe disease including respiratory infections, septicaemia and reproductive tract infections under certain conditions. Recent evidence suggests that humans can also develop severe disease infection through direct contact with infected animals or the consumption of contaminated unpasteurised milk and milk products. This study investigates SEZ strains isolated from nasal swabs of equidae in central Italy in 2023 to describe the epidemiology and genomic characteristics of circulating...
Approaching equine infectious anemia in regions dominated by grade-working animals – a case of Pará, a state in the Brazilian Amazon. Considering that control strategies for Equine Infectious Anemia, based on the serological diagnosis of equids and the removal of positive animals, may not be optimal for developing countries with an absolute predominance of grade working animals, this study aimed to address this issue based on the epidemiological situation of the disease in Pará, a state in the Brazilian Amazon. Pará was divided into five regions, and within each region a pre-established number of farms were randomly selected. Within each farm, a pre-set number of animals were randomly selected and submitted to Agar Gel Imm...
Working equines: Assessment of welfare and management practices in and around Debre Markos District, Northwest Ethiopia. Working equines play a crucial role in human livelihoods globally, yet their management is often inadequate. Objective: To assess the welfare and management practices of working equines. Methods: A cross-sectional study was conducted from December 2022 to April 2023 in and around Debre Markos, Northwest Ethiopia. Methods: Physical examination and structured interviews were used as data collection tools. A total of 384 equines (186 donkeys, 144 horses, and 54 mules) and their owners were selected through a purposive sampling method. Results: The results showed that 60.4% of the equines were use...
Serosurvey of Leishmania infantum in equids in different European countries. Leishmaniosis is a vector-borne and zoonotic disease with major sanitary implications at global scale. In Europe, Leishmania infantum is the only endemic etiologic agent, which has been previously reported in a wide range of mammal. However, the information about the role of equids in the L. infantum epidemiology is limited. We aimed to assess the seroprevalence and identify potential risk factors associated with L. infantum seropositivity in equine populations across several European countries. A total of 1364 equids, including 1005 horses, 240 donkeys and 119 mules/hinnies from Spain, Italy,...
First Molecular and Phylogenetic Characterization of Equine Herpesvirus-1 (EHV-1) and Equine Herpesvirus-4 (EHV-4) in Morocco. This study aimed to investigate the molecular prevalence and genetic characterization of EHV-1 and EHV-4 in equid populations in Morocco. A total of 154 equids (114 horses, 9 donkeys, and 31 mules) were sampled, with nasal swabs and tissue samples subjected to multiplex real-time PCR for the detection of EHV-1 and EHV-4. Additionally, an isolate from the tissue of an aborted horse fetus was included in the analysis. A subset of EHV-positive samples underwent virus isolation followed by whole-genome sequencing. PCR assays revealed that 42 samples (27%) tested positive for EHV-4, while only 3 sa...
National survey reveals elastic price sensitivity for select equine veterinary services. The objective of this study was to estimate the price elasticity of demand for 3 common equine veterinary services: vaccinations (a routine service), lameness examinations (an elective service), and emergency colic surgery (an urgent service). Methods: Data were collected via a nationwide online survey of horse owners from August 15 to September 11, 2023, eliciting their willingness to pay for each service. The link to the online survey was distributed through participating organizations' social media and email lists to the target audience of US residents aged ≥ 18 years who were financially...
A comparative study across mule, equine and equine clone pregnancies regarding the determination of the day of birth. Monitoring equine parturition effectively is essential for preemptive intervention in periparturient issues and ensuring the overall well-being of both mares and foals. However, its implementation in breeding farms is challenging due to variable gestational lengths and nocturnal births. Predictive techniques have the potential to streamline the monitoring process, reduce labor intensity, and minimize costs. Research on foaling prediction in mares carrying mule or equine clone fetuses is scarce. Therefore, this study aimed to comparatively analyze foaling prediction parameters in mares pregnant...
Equidae pythiosis in Brazil and the world: a systematic review of the last 63 years (1960-2023). This systematic review compiles reports of clinical pythiosis in horses, mules and donkeys from 1960 to 2023 worldwide, focusing on Brazil. We searched databases and included 71 articles detailing clinical characteristics, geographic distribution, epidemiology, diagnostic methods, therapies, and outcomes. The results showed that publications on equine pythiosis have significantly increased since 2010. Brazil reported the highest incidence, comprising 55% of cases, predominantly in the southern, northeastern, and central-western regions during summer and autumn. Cutaneous pythiosis was the most...
Prevalence of squamous gastric disease in Colombian equids at slaughter: A postmortem comparative study among horses, donkeys and mules. Equine Gastric Ulcer Syndrome (EGUS) occurs with variable prevalence in horses, donkeys, and mules. Due to the particularities of the mucous membranes, the syndrome is made up of Squamous Gastric Disease (ESGD) and Glandular Gastric Disease (EGGD). Given the multifactorial nature and multiple classification systems of the syndrome, significant differences have been reported between prevalence studies performed ante mortem, which are even more remarkable when compared with postmortem evaluations. This study aimed to determine the presence and grade of squamous gastric disease in horses, donkeys...
Common clinical findings identified in working equids in low- and middle-income countries from 2005 to 2021. Despite several millions of working equids worldwide, there are few published studies regarding the epidemiology of their health and welfare. Data collected by non-governmental organisations (NGOs) operating in the working equid sphere therefore have important epidemiological value and could be used towards animal health surveillance. The aim of this study was to identify common clinical findings and mortality patterns of working equids in low- and middle-income countries and investigate their epidemiology using data collected from an international NGO. A retrospective analysis was conducted t...
Equine helminths: prevalence and associated risk factors in Gamo Gofa Zone, Ethiopia. Equines are indispensable in reducing the huge burden on children and women and income generation. On the other hand, minimal attention is given to improving their health and welfare. Objective: This study examined the prevalence and associated risk factors of helminth parasites of equine in the Gamo Gofa Zone. Methods: A cross-sectional study was employed from June 2019 to March 2020. The study districts and were selected purposively based on agroecology whereas selection of study households and animals were performed based on simple random sampling techniques. Identification of nematode, tr...
Isolation and molecular identification of Leptospira santarosai and Leptospira interrogans in equines from eastern Mexico. Leptospirosis is an infectious disease with a worldwide distribution, which represents a major challenge in animal production across developing countries, mainly in tropical areas. Horses are particularly susceptible to the disease, presenting manifestations ranging from subclinical to the development of uveitis that compromises the visual health of the animals. In recent years, serological studies have been carried out in equid populations from America, demonstrating high exposure. For this reason, the aim of this study was to demonstrate microbiologically and molecularly the presence of the ...
Equine Infectious Anaemia: The Active Surveillance of an Entire Equid Population Reduces the Occurrence of the Infection. Equine infectious anaemia (EIA) is a life-long viral infection affecting equids, transmitted mechanically by biting flies and iatrogenic means. Despite its global distribution, active surveillance is limited, with passive clinical surveillance or control of specific equine sectors prevailing. In Italy, a national surveillance plan in horse, donkey, and mule populations has been established and includes mandatory passive and active surveillance through annual serological tests. During 2007-2010, the agar gel immunodiffusion (AGID) test served as both screening and confirmatory tests. Since 2011...
External Hoof Measurements of Untrimmed and Unshod Mules in Northern Thailand. External hoof characteristics, balance, and conformation have been extensively studied in horses; however, mules remain understudied in these aspects. This study evaluated the size, shape, and symmetry of untrimmed and unshod forelimb hooves, compared the symmetry between forelimb hooves and stratified external forelimb hoof measurements based on the body condition score of mules raised in the foothill plains of northern Thailand. The forelimb hooves of 38 mules were photographed and 33 parameters, including angular and linear measurements, were analyzed. A multivariate analysis was used to ex...
