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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.
Copper-induced GSH depletion and methaemoglobin formation in vitro in erythrocytes of some domestic animals and man. A comparative study. Reduced glutathione (GSH), per cent methaemoglobin and haemolysis were measured in physiologic saline suspensions of erythrocytes from sheep, goat, cattle, horse, swine and man; incubated for 24 hours at 37 degrees with and without copper sulphate (0,5 and 10 micrograms Cu/ml suspension). Formation of Heinz bodies was studied in similar experiments with sheep and swine cells only. Generally, GSH depletion developed first, followed by methaemoglobinemia and Heinz bodies, while haemolysis was limited. Both spontaneous and copper-induced GSH depletion was slow in swine erythrocytes compared to ot...
Salmonellosis in a group of ponies: failure to identify a chronic active carrier. Three of 33 ponies died after the herd had been moved to a new environment 3 months earlier. One mare died without premonitory signs of illness. Shortly thereafter, a 5-day-old foal and a 2-year-old gelding died after brief illness. Although cultures were not performed on the mare, Salmonella typhimurium was isolated from the feces and tissues of the foal and gelding. Lesions in the foal were confined to ecchymotic hemorrhages on the mucosal surface of the colon and petechial hemorrhages in the splenic capsule, with adhesions to the parietal peritoneum. The gelding had evidence of severe typhl...
A comparison of the complement fixation and immunofluorescent antibody tests in a survey of the prevalence of Babesia equi and Babesia caballi in horses in the Sultanate of Oman. The incidence of antibodies to Babesia equi and B. caballi in horses in the Royal Stables of His Majesty the Sultan of Oman was assessed by complement fixation (CF) and immunofluorescent antibody (IFA) tests. Two series of samples taken with a 2-year interval, mainly from animals reared in Oman, indicated a stable but high prevalence of antibodies. On the 2 occasions 94.6 and 97.7% respectively were positive to B. equi by IFA and 76.8 and 75.0% were positive by CF. For B. caballi the corresponding percentage figures were lower--67.9 and 40.9 by IFA and 30.4 and 40.9 by CF. A group of animals t...
Graft versus host reactions in foals with combined immunodeficiency. Nine foals with combined immunodeficiency were given hepatic and thymus cells from 68- to 110-day-old (gestational age) fetuses or peripheral blood lymphocytes from nonrelated horses. Clinical signs and lesions consistent with graft vs host reaction were observed in eight of the foals. Diarrhea was observed in these 8 foals, and ulcerative dermatitis, stomatitis, or glossitis was detected in 6 of the 8 foals. Histopathologic changes consisting of necrosis and lymphocyte infiltration were observed in liver, skin, alimentary tract, and less frequently in lymphoid tissues. Changes in complete blo...
Mucosal alterations in experimentally induced small intestinal strangulation obstruction in ponies. Small intestinal strangulation obstruction (ISO) was produced in seven ponies (under pentobarbital-anesthesia) by arteriovenous ligation. Positive-pressure ventilation with room air was used to maintain arterial PCO2 at the initiation of the ISO. Biopsy materials obtained from affected intestines at various times were evaluated, using histopathologic examination and scanning electron microscopy. Mucosal and villus degeneration was graded 0 to V and compared with intestinal gross color, motility, and wall thickness. The mucosa at the tip of the villus was the first to be affected. Degeneration ...
Ultrastructure of Babesia equi in ponies treated with imidocarb. Four splenectomized ponies were infected with Babesia equi. Two ponies were not treated, and two were treated with 5 mg of imidocarb/kg of body weight when 20% of their erythrocytes were parasitized. The nucleus of the parasite in erythrocytes from blood smears of nontreated ponies was roundish, deep red-staining, and usually composed two-thirds of the organism. The parasite in erythrocytes from blood smears of treated ponies was swollen and vacuolated except for an area just beneath the plasma membrane where the compressed nucleus was marginated, elongated, and clumpy. Parasites in erythrocyt...
Occlusion of internal carotid artery in the horse by means of a balloon-tipped catheter: evaluation of a method designed to prevent epistaxis caused by guttural pouch mycosis. A procedure developed to occlude the internal carotid artery of horses with guttural pouch mycosis was modified was modified and evaluated in nine clinically normal horses. The left internal carotid artery was ligated at its origin and occluded distally with an intraluminal balloon catheter. In four horses, the balloon-tipped catheters were left in place until these horses were euthanatized at 4 to 244 days after surgery. In the remaining horses, the catheters were removed after 10 to 14 days by a cutdown procedure, and these horses were euthanatized 1 to 60 days after catheter removal. In bot...
Energy and current requirements for ventricular defibrillation using trapezoidal waves. The threshold energy and current required for ventricular defibrillation was determined in dogs ranging in weight from 6.4 to 38 kg and in ponies ranging in weight from 40 to 101 kg. Trapezoidal waves, 10 ms in duration, with 10%, 50%, 70%, and 90% tilt were applied to transchest electrodes. For all values of tilt, the energy and current required increased with body weight. The energy dose (joules per kilogram of body weight) was higher for the heavier animals, whereas the current dose (peak amperes per kilogram of body weight) was essentially the same for dogs and ponies. In both species and ...
Bilateral ventral accessory neurectomy in windsucking horses. Bilateral neurectomy of the ventral branch of the spinal accessory nerve was performed in an attempt to control windsuckling. There was no permanent improvement in the eight cases described.
[Pharmacokinetic model studies of sulfamerazine in domestic mammals. 5. Resorption of Mebacid tablets in large animals]. The formula proposed by RITSCHEL (1973) for calculation of rates of resorption is explained and modified for use of the monocompartment model. Resorption rates were calculated for cattle, calf, horse, and sheep, with reference being made to the example of Mebacid tablets. The most favourable rate of resorption was established for calf.
Ventricular defibrillation with myocardial electrodes in the dog, calf, pony, and pig. The defibrillation effectiveness of 4-msec rectangular wave shocks was evaluated using myocardial electrodes with 25-kg dogs and (nominally) 100-kg calves, ponies, and pigs as part of an evaluation of the suitability of these animals as models for automatic implanted defibrillator research. The percent success of defibrillation attempts in dogs ranged from 44% with 4-A, 6-J shocks to 93% with 8-A, 16-J shocks. The success achieved in calves with scaled electrodes was uniformly lower and reached a maximum of 28% with 23-A, 107-J shocks. Pigs defibrillated with scaled electrodes at a success lev...
