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Topic:Veterinary Research
Veterinary research in horses encompasses the study of diseases, health management, and medical treatments specific to equine species. This field investigates various aspects of horse health, including infectious diseases, metabolic disorders, and musculoskeletal conditions. Researchers focus on understanding the pathophysiology of equine ailments, developing diagnostic tools, and evaluating therapeutic interventions. The study of horse health also involves examining preventive measures such as vaccination protocols and nutritional management to promote overall well-being. This page collects peer-reviewed research studies and scholarly articles that explore the diverse areas of veterinary science related to horses, providing insights into disease mechanisms, treatment strategies, and advancements in equine healthcare.
Hemodynamic and respiratory effects of xylazine-morphine sulfate in horses. The cardiopulmonary effects of two xylazine-morphine sulfate drug combinations (mixtures) given IV were evaluated in horses. In horses given xylazine (0.66 mg/kg of body weight) and morphine sulfate (0.12 mg/kv) IV (experiment 1), there were significant (P less than 0.05) decreases in heart rate, cardiac output, and respiratory rate. Central venous pressure was significantly (P less than 0.05) increased. Arterial and pulmonary arterial blood pressures increased significantly (P less than 0.05) but transiently. Arterial blood gas tensions (PaCO2 and PaO2) and pH remained unchanged. In the horse...
A gas chromatographic screening procedure for the detection of non-steroidal anti-inflammatory drugs in horse urine. A gas chromatographic screening procedure for the non-steroidal anti-inflammatory group of drugs is described. The method invovles on-column methylation of the carboxylic acid group using trimethylanilinium hydroxide as the methylating reagent. Fifteen such drugs were studied. Eight of these were detected in urine collected from horses that had received these compounds orally and for these drugs, rates of urinary excretion are recorded. Seven other members of this group of drugs were shown to be detectable by this procedure but in these cases the drug was added to urine and not administered to...
Equine leucoencephalomalacia (ELEM): a study of Fusarium moniliforme as an etiologic agent. Signs and lesions characteristic of equine leucoencephalomalacia were produced in one of two donkeys given corn cultured with Fusarium moniliforme Sheldon. Gross and histopathologic lesions of the cerebrum included an extensive necrotic cavitation within one cerebral hemisphere, disruption and rarefication of the subcortical white matter, prominent perivascular hemorrhage, and some mononuclear cell perivascular cuffing. Another donkey and three rabbits fed the cultured corn did not develop characteristic signs or lesions of the toxicosis. Chick bioassay studies indicated that the cultured corn...
Cellular and humoral immune response of foals to vaccination with Corynebacterium equi. Transformation of peripheral blood lymphocytes from pony foals vaccinated and subsequently infected with Corynebacterium equi was studied. Three foals were vaccinated on two occasions using a formalinized C. equi vaccine with aluminum hydroxide as an adjuvant. Three nonvaccinated foals served as controls. Foals were challenged intratracheally with 9 x 10(9) C. equi six weeks after the initial vaccination. Foals survived this infection for one to two weeks. Significant lymphocyte transformation in response to C. equi antigens was detected in two vaccinated foals at the third week after initial ...
Horse markings: their importance to the integrity of racing and breeding. The difficulties that arise in filling out marking certificates for thoroughbreds are described. The description given on the certificate has to be both written and graphic. A general guide to whorl location is given.
Some observations on an outbreak of trypanosomiasis in horses in the Republic of Zambia. No abstract available
A possible case of osteodystrophia fibrosa cystica in a horse. A case of unilateral front leg lameness with bone changes in the pedal bone suggestive of osteodystrophia fibrosa cystica is reported in an eight year old crossbred gelding. The changes were diagnosed at postmortem examination. The known possible causes are briefly reviewed.
Feed intake patterns and associated blood glucose, free fatty acid and insulin changes in ponies. The feeding patterns of five pony geldings fed pelleted diets ad libitum were quantified for five 24-hr periods. Eighty percent of a given pony's total daily intake (6.3 ± .81 kg or 2.9 ± .41% BW) was eaten in 10 ± .9 separate meals. Each meal averaged .49 ±.13 kg of pellets and lasted 44 ± 10 minutes. The mean intermeal interval was 84 ± 10 min, with a maximum of 3 hour. The animals spent 38 ± 7.2% of a 24-hr period engaged in eating activities, 84 ± 3.7% of which was devoted to meals, the other 16% spent in nibbling activities. Forty-nine percent of the total daily intake was consume...
The epidemiology of ringworm in racehorses caused by Trichophyton equinum var autotrophicum. The epidemiology of dermatomycocis due to Trichophyton equinum var autotrophicum was studied in a number of thoroughbred stables in south-east Queensland. The significant factors in the epidemiology were defined. The infection was readily transmitted, particularly by infected saddle-girths, on which the fungus could survive for 12 months. Mild abrasion from the saddle during work favoured the development of lesions and prolonged the recovery period. A pronounced age and seasonal incidence of the disease was demonstrated as young horses under the age of 3 years were most susceptible, and the ma...
Pleasure horses as a possible source of Salmonella agona. Horses in a riding stable sporadically excreted Salmonella agona, S anatum, and S newington in the feces. The three serotypes were isolated from apparently normal horses. The horses were sampled (the number sampled varied between 10 and 21) six times throughout a 13-month period. The greatest percentage of the horses (12 of 19, or 63%) were found to be excreting salmonella in September. Among the 12 horses excreting salmonella during this month, 8 (67%) were found to be excreting S agona.
[Verminous enteritis and thrombo-embolic colic in the horse. A description of 36 cases (author’s transl)]. Based upon case reports from 36 cases of verminous thrombosis of arteria mesenterica cranialis--all of which were verified at necropsy--clinical symptoms, course and pathological lesions are described. Seventy five per cent of the patients were under 3 years old, and 73% of the cases showed initial signs during the period July-December. Salient clinical findings were, unthrifty appearance and emaciation, diarrhoea--observed in two thirds of the patients--and colic--observed in 50 per cent of the cases. Haematological and biochemical findings were inconclusive, yet, hypoproteinaemia was a rathe...
[Entero-colitis in the horse. A description of 46 cases (author’s transl)]. A description is given of 46 cases of non-parasitic enteritis, treated in the Large Animal Clinic during the period 1965--77. A group of 12 horses showed an acute or peracute clinical course with rapid development of shock and high lethality (83 per cent). A smaller group of 9 horses showed a subacute course while 22 horses had chronic enteritis with intermittent diarrhoea--often semisolid like cow's dung--increased peristalsis, weight loss and, in some cases, hypoproteinaemia with subcutaneous edema. Lethality rate in this group was appr. 40 per cent. Predisposing factors--especially physical...
Occurrence of Leu-Lys-bradykinin and histidine-rich peptide in high-molecular-weight kininogen isolated from horse plasma. On incubation of purified horse plasma high-molecular-weight kininogen with purified plasma kallikrein, three new peptides, named fragment 1.2, fragment 1 and fragment 2, were released, in addition to the vasopeptide, bradykinin. Fragment 2 contained an extremely high level of histidine, in which eleven residues out of the total 48 residues were characterized. Thus the result proves the existence of the histidine-rich region in horse high-molecular-weight kininogen, which is similar to the region previously identified in bovine high-molecular-weight kininogen. Moreover, we have identified a ne...
Peritoneal lavage in the horse. Eight horses ranging in age from 4 days to 9 years were treated for peritonitis. Escherichia coli was isolated in four cases and Nocardia sp in one case. In each case, a catheter placed in the peritoneal cavity allowed drainage of a large amount of purulent fluid. Retrograde peritoneal lavage was performed through a Foley catheter or medical tubing, using Ringer's lactate solution containing kanamycin, povidone iodine, or nitrofurazone. All except two horses responded well to repeated lavage.
