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Topic:Veterinary Medicine
Veterinary medicine for horses encompasses the study and application of medical practices to diagnose, treat, and prevent diseases in equine species. This field involves a comprehensive understanding of equine anatomy, physiology, pathology, and pharmacology. Veterinary practitioners employ a range of diagnostic tools and therapeutic interventions to address health issues in horses, including lameness, gastrointestinal disorders, respiratory conditions, and infectious diseases. Preventative care, such as vaccination and deworming programs, is also a significant aspect of equine veterinary medicine. This page gathers peer-reviewed research studies and scholarly articles that explore various aspects of veterinary medicine as it pertains to horses, including advancements in diagnostic techniques, treatment protocols, and preventive health strategies.
Horse, ass, and mule chromosomes. Karyotypes of the horse with 64 chromosomes, the ass with 62 chromosomes, and the mule with 63 chromosomes are presented. The chromosome complements of each species and their mule hybrid are analyzed and compared.
Studies on iron uptake and micelle formation in ferritin and apoferritin. Iron uptake and micelle formation in ferritin and apoferritin have been followed both spectrophotometrically and by means of sedimentation velocity experiments. Information was thus obtained on the molecular weight distribution of the reconstitution product. To achieve incorporation 'native' ferritin (whole ferritin as purified from horse spleen), 'native' apoferritin (apoferritin prepared by fractionation of ferritin preparations) and 'reduced' apoferritin (apoferritin prepared by reduction of ferritin by dithionite or ascorbic acid) have been incubated with ferrous salts in the presence of o...
Some steroids in the blood of mares suffering from endometritis and post-partum mares as compared to normal cycling mares. It appeared that in mares suffering from endometritis the concentrations of pregnenolone, of the compound "5.4", and of progesterone in the blood during the first 2 days of the heat period were significantly higher than in normal cycling mares, in which the concentrations of all steroids were less than or equal to 1 ng/ml. In five endometritis mares the "5.4" and progesterone concentrations decreased after the first days of the heat period, and at about two days before ovulation the values were comparable to those of normal cycling mares. Eight mares suffering from a severe endometritis did no...
Effects of Saffan administered intravenously in the horse. Saffan was injected intravenously on 41 occasions in 11 horses and ponies to investigate its possible use in clinical equine anaesthesia. The optimum dose for induction was 1-90 mg per kg. This dose was divided into two halves, the first half given in five seconds and the second half, containing suxamethonium chloride 0.1 mg per kg, in the next 10 seconds. Induction was associated with excitement for up to 30 secs after the assumption of recumbency. At this dose rate anaesthesia lasted five to eight minutes. Muscle relaxation was poor. Recovery was associated with marked tactile and audible hy...
The antidoping control in horseraces in Italy. The results and the improvement of the analytical procedures adopted for the control of doping in horses will be reported. This control has been systematically carried out in Italy for about 10 years in the laboratories of Italian Federation of Sport and Medicine in which the biological samples for the control of doping in various sport activities (football, cycling, athletics etc.) are also examined. In this way it is possible to use the same instruments for all these similar problems and compare the results. The analytical procedure is based on the following steps: 1) Extraction of the sampl...
Digital vascular responses and permeability in equine alimentary laminitis. Digital vascular pressures, blood flow, and vascular resistances were measured in 11 control ponies and in 8 animals (7 ponies and 1 horse) affected with laminitis created by feeding a high starch ration. Animals with laminitis had increased digital blood flow, increased arterial, small vein, and large vein pressures, and decreased vascular resistances. Comparison of digital lymph flow rates and protein concentrations in animals with laminitis and control animals revealed no differences. Digital vascular responses of the 2 groups to acetylcholine, epinephrine, histamine, or serotonin also did ...
Isolation of an adenovirus from an Arab foal with a combined immunode ficiency disease. Some details of the clinical and postmortem findings of an Arab foal that died as a consequence of adenoviral pneumonia superimposed on a combined immunodeficiency disease are provided. The foal was the 17th in a series of similar deaths that occurred on a farm since 1959. An adenovirus, which by haemagglutination inhibition and serum neutralisation tests was antigenically similar to 2 other equine adenoviruses isolated in Australia, was isolated from a nasal swab taken from the foal when it was 23 days of age.
The use of Dopram as a respiratory stimulant following Immobilon in the pony. The effects of the analeptic agent, Dopram (doxapram hydrochloride) were investigated in 2 ponies during Immobilon - induced neuroleptanalgesia. Although Dopram was demonstrated to exert a degree of respiratory stimulation, this was concluded to provide no overall advantage. The etorphine-induced hypoxic hypoxia was only partially reversed, and there was additional cardiovascular stimulation, in contrast to the previously reported tendency for arterial blood pressure to return towards conscious control values during the course of action of Immobilon.
Successful repair of a diaphragmatic hernia in a foal. The diagnosis and successful surgical treatment of a diaphragmatic hernia in a 12 weeks old standardbred foal are described. The clinical syndrome in horses generally is contrasted with that seen in the foal described in this paper. Some of the factors contributing to the clinical signs are discussed.
Pharmacology of procaine in the horse: procaine esterase properties of equine plasma and synovial fluid. Procaine added to whole equine blood or diluted plasma was hydrolyzed with half times of approximately 9 and 12 minutes, respectively, at 37 C. This hydrolytic activity was sensitive to heating and physostigmine, but did not affect procainamide. At pharmacologic concentrations of procaine, the rate of the hydrolytic reaction depended directly on the concentrations of plasma or procaine in the system and was less in whole blood than in plasma. These properties are consistent with hydrolysis being due to plasma esterases operating at less than saturating procaine concentrations. These esterases ...
Percutaneous needle muscle biopsy in the horse. The use of the technique of percutaneous needle biopsy in obtaining skeletal muscle samples in the horse is described. The biochemical, ultrastructural and histochemical investigations that can be carried out on this biopsy specimen are outlined. Analyses performed on the specimen may be used to obtain information on racing potential and state of fitness. These studies on normal horses will provide information for future investigations into the structural and biochemical alterations in muscle disorders in the equine.
An investigation into the genetics of ‘wobbler disease’ in thoroughbred horses in Britain. Sixty-seven TB horses in Britain suffering from clinical wobbler disease were divided into 5 groups, based on the presence or absence of pathological lesions and their nature. These groups were compared genetically with a control group of 67 TBs known not to exhibit signs of wobbling. Though analysed for both simple and complex modes of inheritance no evidence of a genetic basis was found in any group. The high breed incidence in TBs may be real or apparent. Considerably more male than female wobblers are reported. Other forms of possibly inherited ataxia in equidae are reviewed and reference ...
Strongyle infections in ponies. II. Reinfection of treated animals. Five of seven ponies whose strongyle worm burdens had previously been removed or markedly reduced by repeated thiabendazole treatments were reinfected with doses ranging from 100,000 to 500,000 small strongyle infective larvae. Reinfection of ponies resulted in the development of clinical signs characterized by abnormal feces, marked loss of weight and delayed shedding of winter hair coats. An abrupt increase in circulating eosinophils occurred during the first three weeks following reinfection. Patent infections developed in all ponies with worm eggs appearing in the feces from 12 to 15 weeks...
The husbandry and veterinary care of wild horses in captivity. A short account of the natural history of the wild Equidae is given as a background to their management in captivity. In general the approach to their husbandry and veterinary care is similar to that for the domestic horse. A mixture of etorphine and acepromazine has been found to be the most effective for handling and conventional methods of anaesthesia can be safely superimposed on these if required. The data collected at Whipsnade on the haematology and biochemistry of these species is summarised in tabular form and an analysis is included of the post-mortem examinations of 105 equine carca...
The capybara (Hydrochoerus hydrochaeris) as a reservoir host for Trypanosoma evansi. Discovery of two ill horses and three dogs naturally infected with Trypanosoma evansi near an experimental station in the Eastern Plains of Colombia led to a search for reservoir hosts of the parasite. Infection was detected in 8/33 healthy capybaras (Hydrochoerus hydrochaeris), none of the remaining 14 horses, and none of 32 Zebu cattle (Bos indicus), 18 paca (Cuniculus paca) and 20 spiny rats (Proechimys sp.). Contrary to common opinion, the results indicated a carrier state in the capybara. Diagnosis was based on morphology, behaviour in albino rats, and pathogenicity and host range in dome...
