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Topic:Animal Health
Animal Health encompasses a broad range of topics focused on maintaining and improving the well-being of equine species. This field addresses various aspects of horse care, including disease prevention, diagnosis, treatment, and management of health conditions. Key areas of interest include equine nutrition, vaccination protocols, parasite control, dental care, and the management of chronic conditions such as laminitis and colic. Additionally, animal health research in horses investigates the impact of exercise and training on physical health, the role of genetics in disease susceptibility, and the development of new therapeutic approaches. This page compiles peer-reviewed research studies and scholarly articles that explore the latest advancements, challenges, and best practices in preserving and enhancing the health of horses.
[Parasitic horse ticks in Italy. Observations on their distribution and pathogenic role]. The following 13 species of ticks, belonging to Ixodidae family, were recorded in Italy on horse (Equus caballus) since 1931: Ixodes ricinus, I. gibbosus, Haemaphysalis inermis, H. parva, H. punctata, H. sulcata, Dermacentor marginatus, Rhipicephalus sanguineus, Rh. bursa, Rh. turanicus, Hyalomma marginatum, Hy. detritum, Boophilus annulatus. The regional distribution and the role of the species in the transmission of pathogens are reported.
Respiratory emergencies in the adult horse. Responding to an equine respiratory emergency requires rapid localization of the problem and appropriate choices for therapy. Localizing the cause of respiratory distress is aided by history and thorough physical examination. When examining the patient, one must focus on the presenting signs as indicators of URT or LRT dysfunction. Table 3 summarizes the characteristic presenting signs based on respiratory tract location and suggests the initial treatment course indicated. Respiratory distress in the absence of signs related to the pulmonary system suggests inadequate oxygen delivery secondary...
Ergogenic aids to performance in the race horse: nutrients or drugs. Since the domestication of the horse and its use in various types of athletic competition, its diet has developed from that associated with grazing to feeding of additional energy in the form of grains up to the present situation when numerous supplements are fed in hopes of enhancing performance. Many if not all of these may be considered as ergogenic aids, and under the rules of racing in many countries should be considered as a prohibited substance. Until recently, a blind eye has been turned to whether the rules should be enforced against many nutritional supplements, for example, vitamins...
Determination of the minimum alveolar concentration (MAC) and physical response to sevoflurane inhalation in horses. The minimum alveolar concentration (MAC) of sevoflurane required to prevent gross purposeful movement in response to electrical stimulation of the oral mucous membranes was determined in horses, and their physical responses to inhalation of this anesthetic were observed. The MAC was 2.31 +/- 0.11%. The horses showed good ventilation, without any signs of airway irritation such as coughing. The horses became slightly excited before they laid down. The end tidal sevoflurane concentration (ESC) required to produce recumbency was 2.54 +/- 0.11%. These results suggest that sevoflurane is a clinical...
Ocular emergencies. Most ocular and orbital injuries or acute ocular inflammation in horses result in similar signs of adnexal swelling, photophobia, blepharospasm, and lacrimation. It is hoped that detailed examination and the suggestions in this article will enable veterinarians attending horses having ocular emergencies to arrive at a correct diagnosis and appropriate therapy.
The history of veterinary dentistry. Part One: From the earliest record to the end of the 18th century. Dental procedures have been performed on animals, particularly horses, since earliest recorded history. In the absence of anesthesia and an understanding of physiology and pathology, treatment often was unnecessary, inappropriate or barbaric. Progress was made very slowly.
Animal traction in South Africa: research priorities in veterinary science. During June 1994, members of numerous organisations with a vested interest in animal traction in South Africa met for a one-day workshop, the initial activity of a Forum on Working Animals. The workshop was sponsored by the Foundation for Research Development in South Africa. The individuals who attended were representatives of academic and government institutions, farmer and civic organisations, and included veterinarians and veterinary scientists, administrators, traction experts from the region and from abroad, agricultural engineers, sociologist, anthropologists and animal welfare experts....
Phylogenetic relationship of Sarcocystis neurona to other members of the family Sarcocystidae based on small subunit ribosomal RNA gene sequence. Sarcocystis neurona is a coccidial parasite that causes a neurologic disease of horses in North and South America. The natural host species are not known and classification is based on ultrastructural analysis. The small subunit ribosomal RNA (SSURNA) gene of S. neurona was amplified using polymerase chain reaction techniques and sequenced by Sanger sequencing reactions. The sequence was compared with partial sequences of S. muris, S. gigantea, S. tenella, S. cruzi, S. arieticanis, S. capracanis, Toxoplasma gondii, Eimeria tenella, and Cryptosporidium parvum. Alignments of available sites for ...
Endogenic nortestosterone in cattle? When residues of nortestosterone (NT) were found in the urine of cattle, racehorses or bodybuilders, exogenic administration was thought to be proven. In previous literature, no records were found of the endogenic presence of this molecule. In the horse-racing world, Houghton and Courthot found that NT is normally present in the urine of the stallion. Belgian and Dutch researchers found that NT is also present in the urine and edible parts of the intact boar. Vandenbroeck et al. (1991) suggested the endogenous presence of NT (in the beta form) in the pregnant cow. Meyer (1992) reported the pre...
Management of orthopedic emergencies. Initial management of injuries includes safely gaining control of the animal and assessing and treating systemic shock. If hemorrhage is life threatening, it must be controlled. If the limb is nonfunctional it should be stabilized. Any open orthopedic injury should be treated by cleaning the tissues, protecting the exposed tissues, and administering systemic antibiotics. A commercial splint is available (Equine Regular Leg Saver Splint, Kimzey Welding Works, Woodland, CA) that can immobilize and relieve weightbearing for cases of phalangeal fracture, flexor tendon rupture, fetlock breakdown, a...
Sequence analyses of the p24 gene of Borna disease virus in naturally infected horse, donkey and sheep. By reverse transcriptase/PCR amplification and subsequent sequence determination of the p24 gene, the relatedness of Borna disease virus (BDV) in various naturally infected animal species was determined. These results are indicative of a common ancestral virus pool and a remarkably low species barrier of BDV. Comparison of 11 sequences to that of tissue culture adapted virus revealed that the homology among all isolates was at least 96.2% at the nucleotide level, and 97% at the amino acid level. Viral sequences from sheep, donkey and horse were found to be not more distantly related to each ot...
Fumonisin toxicosis in domestic animals: a review. Fumonisins are the most recently discovered group of mycotoxins with important implications in animal health. Equine leucoencephalomalacia and porcine pulmonary edema are diseases observed for many years, but their etiology was unknown. These 2 syndromes were recently reproduced experimentally after administration of purified fumonisin B1 (FB1). The main target organs for the toxic actions of FB1 are the brain in horses and the lungs in the case of swine. However, severe liver damage in both species and pancreatic lesions in swine are also observed, especially when Fusarium moniliforme culture...
Relationships between electrocardiographic findings, racing performance and training in standardbred horses. The presence of abnormal T waves in three or more electrocardiographic leads has been used to diagnose the cause of poor race performance in horses. This study investigated the relationship between previous racing performance in Standardbred horses and T waves, and the effect of training on the T wave. Thirty-two horses were electrocardiographed in two Sydney racing stables. Sixteen horses (50%) had ECGs with three or more leads with abnormal T waves, and these horses had won more races, had a greater ratio of wins per start and a greater number of dollars earned per start than horses with les...
Lipofuscin and abnormalities in colloid in the equine thyroid gland in relation to age. Lipofuscin accumulation and other histological changes in thyroid tissue, previously reported to be age-related, were studied in 31 horses aged up to 35 years. The number of lipofuscin granules relative to thyrocytes increased from birth to 5 years of age. There was a wide individual variation in the number of lipofuscin granules in thyrocytes in mature horses, but this was not directly related to age. Several abnormalities were identified in thyroid colloid. The prevalence of spherites, lipofuscin granules, nucleated cells and shreds of colloid increased with age, but the prevalence of calciu...
A study of the biomechanical properties of the adult equine linea alba: relationship of tissue bite size and suture material to breaking strength. The purposes of this study were to mechanically determine the optimal tissue bite size and to evaluate seven suture materials at their largest commercially available size for breaking strength and stiffness using cadaveric adult equine linea alba. Soft tissues were removed from the abdominal fascia of 16 adult horses. Individual test sections were created from the entire linea alba and labeled (1 through 6) starting at the umbilicus and extending craniad. A single biomechanical test was performed on each test section. Tissue bite size (3, 6, 9, 12, 15, 18, and 21 mm) significantly altered brea...
Effect of prior lavage on bronchoalveolar lavage fluid cell population of lavaged and unlavaged lung segments in horses. Bronchoalveolar lavage (BAL) was performed on 16 horses to determine whether it caused local or diffuse inflammation in the lungs. In 7 horses, BAL was performed in both lungs twice, 48 hours apart. Although total cell counts of the BAL samples did not change significantly, there were increased numbers and percentage of neutrophils in the second lavage fluid samples. In 5 horses, BAL was performed in 1 lung and repeated 48 hours later in the same lung and in the corresponding airway in the contralateral lung. The absolute cell count and percentage of neutrophils were significantly (P = < 0....
Modulation of K(+)-Cl- cotransport in equine red blood cells. Potassium transport was measured in equine red blood cells, using 86Rb+ influx as a convenient assay. A significant component of volume- and pH-sensitive K(+)-Cl- cotransport to the overall K+ flux was observed in all blood samples studied, although fluxes were variable between animals, and within individuals when measured at intervals over a period of weeks. The aryloxyacetic acid [(dihydroindenyl)oxy]alkanoic acid (DIOA), at a final concentration of 100 microM, inhibited most (> 95%) of the Cl(-)-dependent K+ flux, and DIOA sensitivity was therefore used to define the activity of the K(+)...
In vitro development of day 2 embryos obtained from young, fertile mares and aged, subfertile mares. This study was designed to investigate the development of day 2 embryos obtained from young and aged mares, co-cultured with oviductal epithelial cells obtained from mares in each age group in a 2 x 2 crossover design. Young, fertile mares (n = 19; 2-7 years of age) and aged, subfertile, mares (n = 16; 17-24 years of age) were used as embryo and oviductal epithelial cell donors. Embryos (n = 37) were collected from the oviducts 2 days after ovulation and were paired (embryos obtained from young mares with embryos obtained from aged mares) so that eight pairs were co-cultured with young mare ov...
