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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.
Bioavailability of bromhexine in the horse. Bromhexine was administered orally (2 mg./kg.) and intravenously (i. v.) (1 mg./kg.) in 3 horses. Plasma levels were measured and the pharmacokinetic behaviour and bioavailability were estimated. The half-life of elimination after i. v. administration ranged from 3.1 to 4.4 hours. The mean values of the apparent volume of distribution and the volume of distribution of the central compartment amounted to 16.2 and 3.3 1./kg., respectively. A very high plasma clearance, ranging from 49.8 to 59 ml./kg./min., was found.
One hour after oral administration, a mean peak plasma level of about 14 ng....
Quantitative comparisons of acidic prealbumin (PR) phenotypes in horses. Comparisons of Pr protein amounts in horse sera have been performed using .’s (1965) immunodiffusion technique. Relative values against a chosen standard of 100 % were determined for a total of 435 horses. There was considerable variation between horses, the highest Pr value being 125 and the lowest 50 % of the standard. In animals of the same Pr phenotype the mean Pr values were significantly higher (P < 0.001) in foals than in mares. In Norwegian Trotter horses the Pr value of Pr NN animals was significantly higher than that of Pr SS phenotypes, whereas the mean Pr values of Pr SS was sig...
The origin of nuclear bodies: a study of the undifferentiated epithelial cells of the equine small intestine. During an electron and light microscopic study of the equine intestinal epithelium, it was observed that some secretory granules of the undifferentiated crypt epithelium were incorporated into the nucleus during mitosis. A study was made of the chemical nature of the granules, using standard histochemical techniques: PAS-Alcian blue, Deamination-PAS, and Ninhydrin-Schiff reactions. The granules contained a neutral protein-polysaccharide complex with many terminal amino groups, possibly an antibody (IgA). The intranuclear granules underwent coalescence and degeneration during differentiation. T...
Irregular transmissions in the acidic prealbumin (Pr) system of the horse. During the routine parentage control of Norwegian Trotter horses with 10 000 parent offspring combinations two irregular transmissions of Pr alleles were found. The allele products were provisionally named D1 and D2. They appeared in two stallions which were typed as D1I and D2N respectively. The first stallion transmitted PrD1 to seven out of 10 offspring and the second stallion PrD2 to two of four offspring. Photographs of seven new Pr phenotypes are presented.
[Estimation of milk production in the nursing mare by labeling the body water of the foal]. Female milk production was related to offspring water turnover, estimated by a tracer method (fig. 1). After deuterium oxide was injected into the blood of the offspring, we measured the decrease of its concentration in time. Milk intake was calculated by equations taking into account the weight gain of the offspring. The reliability of this method was checked in 28 bottle-fed lambs with known milk intake; the correlation between the actual intakes and our estimates was 0.98 with an error means of 5.6 p. 100. The error on the mean of 28 lambs was 0.5 p. 100 (table 1). The milk production of 6 ...
Postural effects on lung volumes and asynchronous ventilation in anesthetized horses. Quasi-static pressure-volume curves and single-breath nitrogen washouts were performed simultaneously on eight anesthetized horses (average body wt = 485 kg) in left lateral, right lateral, prone, and supine postures (sequence randomized). The shift from prone to lateral or supine posture decreased expiratory reserve volume (ERV), vital capacity (VC), residual volume (RV), functional residual capacity (FRC), and total lung capacity (TLC); RV and FRC expressed as %TLC were unchanged, suggesting that in the lateral and supine postures a significant portion of the lung volume was not recruited by...
[Findings on an epidemic of human trichinelliasis verified in Italy]. The present article completes the information already given in previous papers (Mantovani et al., 1976; Bellani et al., 1977; Mantovani, 1978) and is connected with the research on the infection of horses by Pampiglione et al. (1978). In September 1975 an epidemic of Trichinellosis involving at least 89 people was reported at Bagnolo in Piano (Reggio Emilia). This present article describes the epidemiological investigations. In the introductory part, the Trichinellosis outbreaks are summarized which were reported in Italy during this century along with research on domestic and wild animals. Th...
Hematology and biochemistry reference values for the light horse. Reference hematology and biochemistry intervals are presented for a number of variables of clinical interest determined for blood samples obtained from 60 thoroughbred mares, 12 thoroughbred foals and 50 standardbred horses in training. The observations for each variable were examined for outliers and Gaussian distribution. Parametric analysis was used where the observations were Gaussian initially or after any of four transformations, otherwise nonparametric analysis was required for estimation of the 2.5 and 97.5 percentiles. Description of the sample collection procedures, laboratory method...
Estrus, ovulation, and serum hormones in mares given prostaglandin F2 alpha, estradiol, and gonadotropin-releasing hormone. A gonadotropin-releasing hormone (GnRH) was injected in mares given prostaglandin F2 alpha (PGF2 alpha) to induce luteolysis in an attempt to sunchronize ovulation. Pretreatment with estradiol-17 beta (E2-17 beta) was used to determine whether or not estradiol would enhance the release of luteinizing hormone (LH) after treatment with GnRH. Twelve mares were used in a balanced Latin square crossover design. Mares were injected with PGF2 alpha, treatment A; PGF2 alpha mgnRH, treatment B; or PGF2 alpha me2-17 beta mgnRH, treatment C. The interval +/- SEM from PGF2 alpha injection to estrus was 3....
Survey on antibody to Getah virus in horses in Japan. A seroepidemiological survey was performed on antibody against Getah virus in horses in Japan by the complement fixation test. The positive rate was 35 and 53% in two areas where an outbreak of the infectious disease was reported, whereas it was in a range of 3.3 to 24.2% in other areas, except in certain prefectures of the Kyushu district where a high positive rate was observed. In the Hokkaido district, the northernmost part of Japan, no reactors were found in horses under 6 years old, unlike in any other district. It was also suggested that Getah virus infection might have already been prev...
[Pharmacokinetic model studies of sulfamerazine in domestic mammals. 1. Elimination of Mebacid 200 following intravenous administration to large animals]. Pharmacokinetic data of sulphamerazine were recorded from eight heads each of calf, adult cattle, horse, and sheep, following intravenous application of Mebacid 200, and mathematical implications were discussed. Exponential excretion was recorded from all species, according to the following equation: c = B x e-k2 x t The most favourable pharmacokinetic parameters were recorded from calf.
Simultaneous preparation of mononuclear and polymorphonuclear leucocytes from horse blood on Ficoll-Hypaque medium. Results presented show that highly purified populations of mononuclear (MN) and polymorphonuclear (PMN) leucocytes can be obtained from horse blood by a procedure similar to that previously described for the separation of these leucocytes from human blood. This involved centrifugation of horse blood on a Ficoll-Hypaque medium with a density of 1.095 g/ml. The procedure required approximately 1 h for completion and resulted in the simultaneous preparation of MN (greater than 98% purity) and PMN (greater than 96% purity) leucocytes. Cell viability exceeded 95% and cells retained immunological fu...
A primary immune response to dextran B512 is followed by a period of antigen-specific immunosuppression caused by autoanti-idiotypic antibodies. After a primary immune response to the alpha 1-6 epitope of dextran B512, dextran high responder strains exhibit a specific inability to produce IgM and IgG antibodies against this epitope, although they gave an expected secondary response to horse erythrocytes. Spleen cells from dextran-primed and-suppressed mice responded well to dextran after transfer to lethally irradiated previously untreated mice, indicating that tolerance or exhaustive proliferation of dextran reactive B cells is not responsible. Thymus-dependent dextran-protein conjugates also induced specific suppression. Suppression ...
