| california encephalitis virus activity in mosquitoes and horses in southern ontario, 1975. | a study was undertaken in 1975 to determine california encephalitis virus activity in southern ontario. three thousand and sixty-one mosquitoes, primarily aedes species, were divided into 104 pools and inoculated into suckling mice. isolates of snowshoe hare virus were obtained from one pool each of aedes fitchii and a. triseriatus mosquitoes collected in the guelph area. serological testing of horse sera revealed extensive virus activity in southern ontario and indicated that horses may serve a ... | 1978 | 34475 |
| infectious causes of equine respiratory disease on ontario standardbred racetracks. | upper respiratory disease has been a serious problem in standardbred horses on racetracks in ontario, with outbreaks occurring once or twice annually in late winter and early spring seasons. to determine the causes of these epidemics, a 3-year investigation was carried out in which nasal swabs and serum samples were obtained at intervals from apparently healthy horses and from horses suffering from upper respiratory disease. the nasal swabs were used to isolate bacteria and viruses. the serum sa ... | 1977 | 192757 |
| case report: an outbreak of herpesvirus myeloencephalitis in vaccinated horses. | in the foaling season of 1977, five vaccinated horses in a standardbred breeding stable were affected with herpesvirus myeloencephalitis. respiratory and abortigenic forms also occurred in other individuals on the premises. equine herpesvirus type 1 was isolated from the brain of one case of myeloencephalitis and from lungs of two aborted fetuses. twelve of 16 horses demonstrated fourfold or greater increases in titres to equine herpesvirus type 1. | 1979 | 216473 |
| epidemiology of equine upper respiratory tract disease on standardbred racetracks. | the outbreaks of upper respiratory tract infections in horses at standardbred racetracks were investigated over a three year period. the most serious epidemics of respiratory disease occurred in the winter and spring seasons. both influenza viruses and equine herpesvirus 1 were shown to be present in the horse population. the herpesvirus was associated with respiratory disease particularly in the winter but the equine influenza viruses apparently were responsible for the major epidemics of respi ... | 1979 | 218705 |
| prevalence and treatment of tapeworms in horses. | a study was initiated to determine the prevalence of tapeworms in horses in southern ontario and to investigate the efficacy of pyrantel pamoate, niclosamide and mebendazole. fecal samples were taken from 580 horses of various breeds, ages and sexes in 24 locations and anoplocephala perfoliata was found in 13.6%. this was regarded as a minimum, the true rate being probably significantly higher and the reasons for this are discussed. a brief review of the life cycle and effects of tapeworms in ho ... | 1979 | 487360 |
| tissue pathology and comparative microanatomy of onchocerca from a resident of ontario and other enzootic onchocerca species from canada and the u.s.a. | the microanatomy of one male and one female specimen of a zoonotic onchocera sp in a fibrous nodule excised from the wrist of an ontario resident, two bovine onchocerca from saskatchewan and manitoba, canada, and o. cervicalis from the ligamentum nuchae of a horse in georgia, u.s.a., were compared. in dimensions and cuticular morphology, the three canadian specimens of onchocera shared certain features and closely resembled both o. cervicalis and o. gutturosa. the number of cuticular striae in s ... | 1977 | 596957 |
| control of equine respiratory disease on ontario standardbred racetracks. | | 1977 | 880539 |
| a short incubation serum neutralization test for bovine viral diarrhea virus. | a three day serum neutralization (sn) test for the detection of antibodies to bovine viral diarrhea virus (bvdv), which is an improvement on the existing five day test, is described. the improved test results in a more rapid viral cytopathic effect and utilizes madin darby kidney (mdbk) cells, and horse serum as a medium supplement. a comparison of tests utilizing the nadl and the singer strains of bvdv and the use of either secondary bovine kidney cells with calf serum (bkcs) or continuous mdbk ... | 1992 | 1317246 |
| epidemiology of equine protozoal myeloencephalitis in north america based on histologically confirmed cases. a report. | following a workshop on equine protozoal myeloencephalitis (epm) convened at the veterinary medical forum of the american college of veterinary internal medicine in 1988, this survey of epm in north america was developed. it is based upon 364 histologically confirmed case records from california, florida, illinois, kentucky, new york, ohio, oklahoma, ontario, pennsylvania, and texas up to 1988. the highest rate of infection was found in young thoroughbred, standardbred, and quarter horses. diffe ... | 1990 | 2342022 |
| epidemiological features of 5009 cases of equine cryptorchism. | data from 16 north american veterinary university teaching facilities, 5009 cryptorchid horses, were analysed using relative risk methodology. in five breeds (thoroughbred, standardbred, morgan, tennessee walking horse and arabian), cryptorchism was diagnosed significantly (p less than 0.05) less frequently than expected by their representation in the hospital population. three breeds, (percheron, american saddle horse and american quarterhorse), plus ponies (as a group) and crossbred horses wer ... | 1986 | 2879730 |
| arbovirus infections in several ontario mammals, 1975-1980. | serological studies for arboviruses were conducted on 725 animal sera collected in 22 ontario townships between 1975 and 1980 including 44 coyote (canis latrans), 277 red fox (vulpes vulpes), 192 raccoon (procyon lotor) and 212 striped skunk (mephitis mephitis). hemagglutination inhibition antibodies to two flaviviruses, namely st. louis encephalitis and powassan were found in 50% of coyote, 47% of skunk, 26% of fox and 10% of raccoon sera. similarly, hemagglutination inhibition antibodies to a ... | 1986 | 3017527 |
| leptospirosis in horses in ontario. | sera from thoroughbred and standardbred horses in southwest ontario were tested for antibody to seven leptospira interrogans serovars (autumnalis, bratislava, canicola, grippotyphosa, hardjo, icterohaemorrhagiae, pomona), using the microscopic agglutination test. there was significantly higher seroprevalence of bratislava than of other serovars, in which prevalence was low. seroprevalence of bratislava increased significantly with age; only 5% of two to three year old horses had titers greater t ... | 1987 | 3330964 |
| epidemiology of strongyles in ponies in ontario. | the transmission of strongyles among 54 shetland-cross mature ponies was examined from may 30 to november 22, 1983 when the ponies were on pasture and over the ensuing winter when they were in loose housing. fecal and pasture herbage samples were taken fortnightly through the pasture season and periodically thereafter. three foals born and reared on pasture were weaned and removed from pasture, two in early august and one in mid-september, and housed for a period before necropsy. daily maximum a ... | 1987 | 3453266 |
| staphylococcus aureus colonization and infection after discharge from a term newborn nursery. | during a 6-month period, term infants underwent nasal and umbilical swabbing within 96 hours of delivery and again at 1 to 18 (mean 3.8) weeks after discharge. swabs were inoculated onto horse blood agar and all s aureus isolates were phage typed. two hundred three infants were enrolled and follow-up was obtained for 181 (89%). thirty-two of 181 (17.6%) were initially colonized, of whom 12 (37.5%) were colonized on follow-up. thirty-two of 181 became colonized subsequent to hospital discharge. n ... | 1987 | 3643890 |
| major antigenic groups of rabies virus in canada determined by anti-nucleocapsid monoclonal antibodies. | a total of 123 rabies virus isolates from various geographical areas in canada were characterized by a panel of 43 anti-nucleocapsid monoclonal antibodies. four major antigenic groups are found in terrestrial mammals: "canadian arctic" from ontario, quebec and the northwest territories; "south-eastern georgian bay" from ontario; "south mid-central skunk" from alberta, saskatchewan and manitoba; and "brook's, alberta skunk" from a restricted area in alberta. bat isolates can be divided into 4 maj ... | 1986 | 3769442 |
| lymphosarcoma in a mare and review of cases at the ontario veterinary college. | | 1973 | 4740853 |
| isolation of listeria monocytogenes from brain specimens of domestic animals in ontario. | | 1971 | 5005795 |
| the radiographic status of the left fore fetlock of winning thoroughbreds at ontario racetracks in 1970. | | 1972 | 5017324 |
| case report. thelazia lacrymalis from the eyes of an ontario horse. | | 1970 | 5466739 |
| a study of the effects of lasering on chronic bowed tendons at wheatley hall farm limited, canada, january, 1983. | chronic bowed tendons of horses have been lasered with an infrared 904-nm laser at wheatley hall farm limited since 1980. a sample of 42 single injury/single treatment standardbreds which were racing within 120 days of laser treatment and met certain criteria, were evaluated for final race times, last quarter race times, and class changes. results indicate that a significant percent of the standardbreds raced with similar or improved times and classes. lasering bowed tendons presents a safe and ... | 1983 | 6633135 |
| exogenous estrogens and endometrial cancer: a case-control study and assessment of potential biases. | eighty-eight cases with newly diagnosed carcinoma of the endometrium and 177 age-matched neighborhood controls were interviewed to test the hypothesis that exogenous estrogens lead to an increased risk of endometrial cancer. forth-five per cent of the cases and 22% of the controls reported a history of estrogen use which yielded an odds ratio of 2.9 (confidence interval (cl) 1.7-5.1). women with five or more years of estrogen use had an odds ratio of 8.6 (cl 3.2-23.0). approximately 80% of the e ... | 1981 | 7304580 |
| potomac horse fever in eastern ontario. | | 1995 | 7585427 |
| disease trends in domestic animals and poultry in ontario 1971-72. | | 1973 | 4711498 |
| clinical and endoscopic study to estimate the incidence of distal respiratory tract infection in thoroughbred foals on ontario breeding farms. | respiratory tract infections are prevalent in foals, yet the frequency with which the distal airways are affected in clinical episodes of respiratory tract disease has not been evaluated to our knowledge. the objective of the study was to determine the incidence of distal respiratory tract infection (drti) in foals on a sample of thoroughbred breeding farms (n = 10) in ontario. in a pilot study, clinical criteria commonly used to select foals for antimicrobial treatment (detection of abnormal lu ... | 1993 | 8250384 |
| microbiologic changes during antimicrobial treatment and rate of relapse of distal respiratory tract infections in foals. | despite the high incidence of distal respiratory tract infection of undetermined cause on farms, to our knowledge, the microbiologic effects of conventional antimicrobial treatment for this condition have not been studied. we evaluated the possible pathogenic role of bacterial isolates from the distal airways of foals with clinical respiratory tract disease, by correlating changes in their numbers (increase or decrease) with clinical, endoscopic, and pulmonary cytologic signs of disease resoluti ... | 1993 | 8250385 |
| association of microbiologic flora with clinical, endoscopic, and pulmonary cytologic findings in foals with distal respiratory tract infection. | undifferentiated distal respiratory tract disease (nasal discharge, cough, pneumonia) in foals (1 to 8 months old) is a burdensome economic problem on breeding farms; yet, the infective agents associated with these episodes have not been well described. possible causes of these episodes of illness were investigated by culturing specimens of proximal and distal airways of clinically diseased foals (n = 101), prior to any treatment, for aerobic and anaerobic bacteria and viruses (rhinoviruses, equ ... | 1993 | 8250386 |
| infectious agents in acute respiratory disease in horses in ontario. | a study of acute respiratory disease in horses in ontario was undertaken to determine the identity of current causative infectious agents. a nasopharyngeal swab was designed and utilized to maximize isolation of viruses, mycoplasma, and pathogenic bacteria. serum samples were collected for parallel determination of antibody titers to equine influenza virus type a subtype 1 (h7n7) and subtype 2 (h3n8), equine rhinovirus types 1 and 2, equine herpesvirus type 1, mycoplasma equirhinius, and mycopla ... | 1997 | 9087920 |
| restriction endonuclease analysis of equine herpesvirus-1 isolates recovered in ontario, 1986-1992, from aborted, stillborn, and neonatal foals. | ninety-two equine herpesvirus type 1 isolates were recovered from aborted, stillborn, or neonatal foals from ontario, canada, from 1986 to 1992. from this total, 32 strains were randomly chosen for further study. four or 5 isolates from each winter were selected, each from a different premises, and characterized by restriction enzyme analysis using bamhi, kpni, bglii, hindiii, and ecori. additional isolates from 2 premises and from a zebra foal were also assessed. for the strains isolated in 198 ... | 1997 | 9211232 |
| halicephalobus gingivalis (stefanski, 1954) from a fatal infection in a horse in ontario, canada with comments on the validity of h. deletrix and a review of the genus. | although the original description given by stefanski (1954) was satisfactory, anderson & bemrick (1965), in describing h. deletrix (= micronema deletrix), claimed stefanski's description was "inadequate" and the species a "species inquirenda". thus, infections in horses and humans have been assigned to h. deletrix. we believe the species reported in horses and humans is h. gingivalis and that h. deletrix is its synonym. h. gingivalis is separated herein from forms found free-living. the genital ... | 1998 | 9772725 |
| equine abortions in eastern ontario due to leptospirosis. | | 1999 | 10340100 |
| tansy ragwort poisoning in a horse in southern ontario. | bizarre behavior, apparent lameness, and colic were noticed in 1 of 3 horses on a pasture overgrown by weeds during a drought. liver failure and hepatoencephalopathy were diagnosed, caused by pyrrolizidine alkaloid toxicosis associated with consumption of tansy ragwort. the horse made a full recovery when removed from the pasture. | 2000 | 10816838 |
| gastrointestinal nematodes in horses in ontario. | | 1973 | 4703606 |
| parasitisms in domesticated animals in ontario. i. ontario veterinary college records 1965-70. | | 1973 | 4688875 |
| west nile virus encephalomyelitis in horses in ontario: 28 cases. | west nile virus encephalomyelitis was diagnosed in 28 horses presented to the ontario veterinary college veterinary teaching hospital between august 20 and october 15, 2002. the age range of affected horses was 5 months to 20 years (mean 6.9 years, median 6 years). clinical signs were highly variable. duration of hospitalization ranged from < 1 to 12 days (mean 5 days, median 5.4 days). overall, 16 of the 28 (57%) horses were discharged and, of the 14 from which follow-up information was availab ... | 2003 | 12839240 |
| identification of foals infected with parascaris equorum apparently resistant to ivermectin. | during september 2002, routine fecal examinations performed on 16 thoroughbred foals residing on a farm outside toronto, ontario, canada, revealed low to moderate numbers of parascaris equorum eggs in feces from 9 of the 16. all foals were then treated with ivermectin at a dose of 220 to 280 microg/kg (100 to 127 microg/lb), p.o., and fecal egg counts were repeated 12 days later. fecal p. equorum egg counts increased between the first and second fecal examination in 7 foals, were unchanged in 1, ... | 2003 | 12930086 |
| zbitnew a: upper respiratory disease in thouroughbred horses: studies of its viral etiology in the toronto area, 1960 to 1963. | from outbreaks of upper respiratory infection of horses in the toronto area between 1960 and 1963, several viruses have been isolated. the viruses, isolated in tissue cultures or eggs, include an equine strain of myxovirus parainfluenzae 3; two strains of equine influenza virus, a/equi-1/prague/56, and a/equi-2/miami/63; equine rhinopneumonitis virus, and two newly recognized viruses of the horse, equine rhinoviruses. in addition serological evidence suggested a widespread infection with these v ... | 1965 | 14230908 |
| the properties and classification of two new rhinoviruses recovered from horses in toronto, canada. | | 1965 | 14317475 |
| isolation of methicillin-resistant staphylococcus aureus from the environment in a veterinary teaching hospital. | after recognition of a cluster of methicillin-resistant staphylococcus aureus (mrsa) infection in horses and humans at the ontario veterinary college veterinary teaching hospital, environmental contamination with mrsa was evaluated. a total of 260 environmental surfaces were sampled during periods when mrsa-infected horses were hospitalized, and mrsa was isolated from 25/260 sites (9.6%). the most commonly contaminated sites were stalls housing mrsa-positive horses, but other stalls, medical equ ... | 2004 | 15320581 |
| radiotherapy fractionation for the palliation of uncomplicated painful bone metastases - an evidence-based practice guideline. | this practice guideline was developed to provide recommendations to clinicians in ontario on the preferred standard radiotherapy fractionation schedule for the treatment of painful bone metastases. | 2004 | 15461823 |
| methicillin-resistant staphylococcus aureus in horses and horse personnel, 2000-2002. | methicillin-resistant staphylococcus aureus (mrsa) infection was identified in 2 horses treated at a veterinary hospital in 2000, prompting a study of colonization rates of horses and associated persons. seventy-nine horses and 27 persons colonized or infected with mrsa were identified from october 2000 to november 2002; most isolations occurred in a 3-month period in 2002. twenty-seven (34%) of the equine isolates were from the veterinary hospital, while 41 (51%) were from 1 thoroughbred farm i ... | 2005 | 15757559 |
| methicillin-resistant staphylococcus aureus in horses at a veterinary teaching hospital: frequency, characterization, and association with clinical disease. | methicillin-resistant staphylococcus aureus (mrsa) is an emerging equine pathogen. to attempt to control nosocomial and zoonotic transmission, an mrsa screening program was established for all horses admitted to the ontario veterinary college veterinary teaching hospital, whereby nasal screening swabs were collected at admission, weekly during hospitalization, and at discharge. mrsa was isolated from 120 (5.3%) of 2,283 horses: 61 (50.8%) at the time of admission, 53 (44.2%) during hospitalizati ... | 2006 | 16496939 |
| clostridium difficile associated diarrhoea in horses within the community: predictors, clinical presentation and outcome. | | 2006 | 16536390 |
| macrocyclic lactone-resistant parascaris equorum on stud farms in canada and effectiveness of fenbendazole and pyrantel pamoate. | the aims of studies in 2002 and 2003 on three farms with 76 foals naturally infected with parascaris equorum were to (i) identify if the nematode was resistant to ivermectin and moxidectin, and (ii) confirm the effectiveness of fenbendazole and pyrantel pamoate for the parasite. twelve clinical trials, each with a fecal egg count reduction test, were conducted on two thoroughbred and one standardbred farms in southwestern ontario, canada. in each trial, parascaris eggs/g feces were estimated for ... | 2007 | 16962243 |
| eastern equine encephalitis in horses in ontario in 1994. | | 1995 | 7773925 |
| hard hearts and horse-drawn carts. | | 2009 | 19153392 |
| comparative long-term efficacy of ivermectin and moxidectin over winter in canadian horses treated at removal from pastures for winter housing. | the impact of a late fall treatment on the spring rise of fecal egg counts was evaluated in a controlled study with canadian horses treated with 2 different dewormers immediately after removal from pasture for winter housing. the horses were stabled until the end of the trial period. seventeen weanlings, 20 yearlings, and 15 2-year-old horses located in ontario, which were presumed to be naturally infected with cyathostomins after pasture grazing, were randomly allocated to either a group treate ... | 2009 | 19436633 |
| prevalence of clostridium difficile in horses. | fecal samples were collected to establish the apparent prevalence of clostridium difficile shedding in standardbred and thoroughbred racehorses housed at 4 racetracks and 2 breeding facilities, and in horses admitted to a referral large animal clinic. forty-one (7.59%) of 540 racetrack horses, seven (5.83%) of 120 breeding farm horses, and four (4.88%) out of 82 horses admitted to the referral clinic were culture-positive for c. difficile. an overall fecal culture prevalence of 7.01% for c. diff ... | 2011 | 21570780 |
| use of repetitive sequence-based polymerase chain reaction for molecular epidemiologic analysis of streptococcus equi subspecies equi. | to determine whether repetitive sequence-based polymerase chain reaction (rep-pcr) could be used to differentiate streptococcus equi isolates, to examine s equi isolates from throughout the world, and to determine whether a horse had > 1 subtype of s equi during an outbreak of disease. | 2000 | 10850848 |
| occurrence of anoplocephala perfoliata infection in horses in ontario, canada and associations with colic and management practices. | infection with the tapeworm anoplocephala perfoliata has been found to be associated with equine colic in horses in the united kingdom. using a matched case-control study design, data collected from 117 pairs of horses in ontario were examined for evidence of associations between risk of colic and a. perfoliata infection, and between seropositivity to infection and management practices. cases were horses in southern ontario diagnosed with colic by local veterinarians, and control horses were fro ... | 2008 | 18339482 |
| the persistence of benzimidazole-resistant cyathostomes on horse farms in ontario over 10 years and the effectiveness of ivermectin and moxidectin against these resistant strains. | three clinical trials with fecal egg count reduction tests and coproculture were conducted on 2 standardbred farms in ontario. on farm a, the treatment groups were mebendazole and ivermectin in trial 1, and fenbendazole and moxidectin in another. on farm b, treatment groups were mebendazole and ivermectin. all horses treated with mebendazole or fenbendazole were subsequently treated with ivermectin or moxidectin. strongyle eggs/g feces were estimated pre- and post-treatment using the cornell-mcm ... | 2008 | 18320979 |
| a prospective study of the roles of clostridium difficile and enterotoxigenic clostridium perfringens in equine diarrhoea. | faecal samples from adult horses and from foals with diarrhoea or with normal faeces were evaluated for the presence of clostridium difficile, c. difficile toxins, c. perfringens enterotoxin (cpe) and c. perfringens spore counts. clostridium difficile was isolated from 7/55 horses (12.7%) and 11/31 foals (35.5%) with colitis, but from 1/255 normal adults (0.4%) and 0/47 normal foals (p<0.001). clostridium difficile toxins a and/or b were detected in 12/55 diarrhoeic adults (21.8%) and 5/30 diarr ... | 2001 | 11469775 |
| larval cyathostominosis in horses in ontario: an emerging disease? | from 1991 to 2003, 24 cases of larval cyathostominosis were diagnosed at postmortem in equids, 15 (63%) from 2001 to 2003. cases occurred from september to may, the majority from october to december. median age was 12 mo. diarrhea, colic, and weight loss were common clinical signs. hypoalbuminemia and microcytosis were consistent findings. | 2006 | 16536234 |
| challenges and strategies related to hearing loss among dairy farmers. | farming is often imagined to be a serene and idyllic business based on historical images of a man, a horse, and a plow. however, machinery and equipment on farms, such as older tractors, grain dryers, and vacuum pumps, can have noise levels, which may be dangerous to hearing with prolonged, unprotected exposure. | 2005 | 16294656 |
| scrutiny of antimicrobial use in racing horses with allergic small airway inflammatory disease. | antimicrobials had been administered to 38/55 (69%) racing standardbred and thoroughbred horses with poor performance, subsequently diagnosed with nonseptic inflammatory airway disease. horses with cough were more commonly treated (p = 0.02). in almost all cases, no clinical signs suggested that bacterial infection was present. inappropriate use of antimicrobials was common. | 2005 | 16018565 |
| ontario equine infectious disease report now available to equine practitioners throughout canada. | | 2003 | 14703079 |
| employer and new graduate satisfaction with new graduate performance in the workplace within the first year following convocation from the ontario veterinary college. | mailed questionnaires administered to employers of graduates and to graduates of the ontario veterinary college in 2000 and 2001, 7 to 10 months after convocation, surveyed new graduate performance in the workplace. proficiency at 9 species-specific (in 4 practice contexts) and 7 nonspecies-specific clinical activities were rated as "high," "some," or "low." fifteen nonvocation-specific attributes, reflecting interpersonal, communication, and business skills, and the new graduate's competence to ... | 2003 | 12757129 |
| emergence of salmonella typhimurium definitive type 104 (dt104) as an important cause of salmonellosis in horses in ontario. | salmonella typhimurium definitive type 104 (dt104) has emerged as a common cause of salmonellosis in humans and cattle, yet previous reports involving horses are sparse. this study reports the emergence of dt104 as an important pathogen in horses in ontario. the first clinical case of dt104 infection at the ontario veterinary college was identified in 1997. seventeen cases of dt104-associated salmonellosis were identified between 1997 and 2000. in 2000, 12 of 13 cases of salmonellosis were due t ... | 2001 | 11665427 |
| rattlesnake bite in a patient with horse allergy and von willebrand's disease: case report. | massasauga rattlesnakes are the only poisonous snakes in ontario. while death from bites of this species is rare, the bite could cause a coagulopathy. i report a case of rattlesnake bite in a patient with asthma, horse allergy, and a documented congenital clotting abnormality. | 1996 | 8939322 |
| potomac horse fever in southwestern ontario. | | 1996 | 8689598 |
| eastern equine encephalitis in horses in ontario in 1994. | | 1995 | 7757925 |
| eastern equine encephalitis in a horse from southwestern ontario. | | 1995 | 7757923 |
| epidemiological survey of corynebacterium equi infections on five ontario horse farms. | corynebacterium equi was cultured from manure or soil on five horse-breeding farms in ontario at monthly intervals on three occasions during the summer of 1982. the organism was widespread. contamination by c. equi of the loafing paddock and pasture areas was significantly greater in a farm established 30 years than in two established for four and six years and there was a significant correlation between the c. equi burden in stables, paddocks and pastures and the length of use of the five farms ... | 1984 | 6713248 |
| submandibular lymph node abscess caused by actinomyces denticolens in a horse in ontario. | this is the first report of the isolation of actinomyces denticolens, an opportunistic pathogen, from a draining submandibular lymph node abscess in a horse in ontario. due to the similarity of the clinical signs with strangles, this pathogen should be included in the differential diagnosis of submandibular lymphadenopathy in the horse. | 2011 | 22043071 |
| ocular anomalies in a herd of exmoor ponies in canada. | to characterize the ocular anomalies, determine their recurrence in families and assess the mode of inheritance of the most prevalent anomalies through pedigree analysis in a herd of exmoor ponies. | 2011 | 21366825 |
| surveillance of equine respiratory viruses in ontario. | the objective of this project was to develop and implement an active surveillance program for the early and rapid detection of equine influenza viruses in ontario. for this purpose, from october 2003 to october 2005, nasopharyngeal swabs and acute and convalescent serum samples were collected from 115 client-owned horses in 23 outbreaks of respiratory disease in ontario. sera were paired and tested for antibody to equine influenza 1 (ae1-h7n7), equine influenza 2 (ae2-h3n8), equine herpesvirus 1 ... | 2010 | 21197227 |
| arterial calcification in race horses. | calcification of large arteries has been sporadically reported in horses. the pathogenesis is still unknown, but recent studies in humans suggest that this is a regulated biomineralizing process. this study surveyed the prevalence, distribution, and severity of vascular calcification in thoroughbred and standardbred racehorses. histopathologic, ultrastructural imaging, and energy dispersive x-ray elemental analyses were used to examine the lesions. calcification of the tunica media, predominantl ... | 2008 | 18725464 |
| epidemiologic characteristics of catastrophic musculoskeletal injuries in thoroughbred racehorses. | to determine characteristics, incidence rate, and possible associations with selected demographic characteristics of catastrophic musculoskeletal injuries (cmis) in thoroughbred racehorses. | 2007 | 18052743 |
| an outbreak of lawsonia intracellularis infection in a standardbred herd in ontario. | an outbreak of protein-losing enteropathy associated with lawsonia intracelluaris infection was diagnosed in 6 standardbred foals from a farm in ontario. wildlife exposure may have been involved in the perpetuation of disease in this outbreak. the clinical presentation, treatment, outcomes, and pathological findings are described. | 2007 | 17966333 |
| natural and manipulated populations of the treehole mosquito, ochlerotatus triseriatus, at its northernmost range limit in southern ontario, canada. | ochlerotatus triseriatus, the eastern treehole mosquito, reaches its northernmost range limit in the extreme southeast of canada. as a known vector of west nile and la crosse encephalitis viruses and a potential vector of eastern equine encephalitis, its population biology is of interest. in southern ontario, high larval densities occur in urban woodlots within sugar maple and american beech treehole communities comprising rotifers, nematode worms, mites, other dipterans, and scirtid beetles. tr ... | 2007 | 18260525 |