Omneity® Pellets
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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.
Ross River virus activity along the south coast of New South Wales. The sera of 468 blood donors and 63 domestic animals, collected from the south coast of New South Wales, were tested for the presence of antibodies to Ross River virus. Antibodies were detected in 7% of human sera, 25% of cow sera and 65% of horse sera. Using the blood donors as 'human sentinels', seroconversions were demonstrated in two donors from the Nowra-Kiama region and from a patient in the same area; none of the three had been outside of the study area during the period of seroconversion or at the time of infection. Of the 15 seropositive horses, 6 (40%) had lived continuously since bi...
Structure and function of the major histocompatibility complex in domestic animals. The major histocompatibility complex (MHC) is a genetic region that has been intensively studied for the past 2 decades. Interest in the MHC has been high because of (i) the particular involvement of the MHC in transplantation reactions, including organ allograft rejection in human beings; and (ii) the more general role of MHC gene products in the genetic control of immune responses in all mammals. The MHC has several remarkable properties that include a distinctive genetic structure which has been well-preserved through evolution, and the extreme plasticity of form of the principal MHC genes,...
Blood groups in animals. The membrane of RBC is literally peppered with a great variety of antigenic determinants (blood factors). Some are fixed genetically, ie, they occur on the RBC of all members of the species under study. Others segregate genetically, ie, they occur on the RBC of some but not all members of the species under study. It is these segregrating determinants that form the blood groups proper, the classic example being blood factors A and B of the ABO system of human blood groups. The number of blood group determinants varies considerably between species (eg, greater than 80 in domestic cattle to only ...
Microsporum equinum in North America. Microsporum equinum was isolated in Ontario, Canada, from five human and two equine cases of ringworm infection. This dermatophyte was previously recovered from North American horses on several occasions, but was considered to be M. canis. We regard M. equinum as distinct from M. canis. It can be differentiated from M. canis by the smaller size of its macroconidia, its failure to perforate hair in vitro, its poor growth and sporulation on bromocresol purple casein dextrose agar, and its incompatibility with Nannizzia otae, the telemorph of M. canis.
The prevalence of Gasterophilus intestinalis in horses in northern England and Wales. The stomachs of 448 horses from northern England and Wales were examined for Gasterophilus larvae, and 237 (52.7%) were found to be infected with G. intestinalis. Larvae were present in stomachs examined during each month of the year except August. Second instar larvae occurred from September through February and third instars were present from November through July. Adult fly activity began in August as indicated by the presence of eggs on horses. The life-cycle of G. intestinalis in northern England and Wales is outlined from the data presented. The mean instar burdens were 15.7 second and 3...
Enhancement of Naja naja atra antivenin production in horses. As the conventional hyperimmunization schedule in horses introduced by Tanaka could not produce enough neutralizing antibody against Naja naja atra venom, the mixture of Carboxymethyl cellulose (CMC)-Cobra venom incorporated with adjuvant was used for immunization. The neutralizing antibody produced (30 LD50) seemed to be increased but still not to reach the satisfactory level. By using CMC-Cobratoxin adjuvant mixture as an immunizing agent, highly potent antivenin (220 LD50) was obtained.
Arterial baroreflex control of heart rate in the horse, pig, and calf. The heart rate (HR) response to stepwise changes in mean arterial pressure (MAP) produced by methoxamine and sodium nitroprusside was studied in conscious horses, pigs, and calves. The respective steady-state arterial baroreflex sensitivities (delta HR/delta MAP expressed as beats min-1 . mm of Hg-1) were -1.20, -1.21, and -0.39 for decreasing MAP and -0.08, -0.91, and -0.56 for increasing MAP. After parasympathetic nervous system (PNS) blockade with atropine, the reflex sensitivity to decreasing MAP in horses and the pigs decreased to -0.62 and -0.65, respectively (P less than 0.05), whereas ...
The uptake of mepacrine by horse polymorphonuclear leucocytes in vitro. The uptake of mepacrine by isolated horse polymorphonuclear leucocytes (PMN) was measured using spectrophotofluorimetry. Two phases of uptake were observed, the first, rapid fraction, essentially complete by 10 min, and a second, slow fraction, which was still proceeding after 60 min. The appearance of mepacrine within the PMN was also visualized by fluorescence microscopy. Discrete yellow points of fluorescence were observed in the cytoplasm of PMN within 30 s. These discrete points corresponded both in size and number to the PMN granules. After 5 min, the nuclei showed faint fluorescence whi...
Hypotension in the horse induced by acepromazine maleate. The hypotensive effect of acepromazine maleate was related to both the dose and route of administration. The degree and duration of hypotension varied between individual horses. In general, intravenous administration produced a more rapid maximum effect than intramuscular injection and the larger the dose the longer blood pressure remained at low levels. Average systolic pressure (of 6 horses) remained significantly below control values for more than 6 h after an intramuscular injection of 0.05 mg acepromazine maleate/kg body weight. Respiratory rate was markedly decreased, with the duration, ...
Lysosomal hydrolase activity in leucocytes from cattle, sheep, goats, horses and pigs. Activities of lysosomal hydrolases were measured in the leucocytes of cattle, sheep, goats, horses and pigs. There was high activity of arylsulphatase in leucocytes from cattle, high activities of alpha-fucosidase and beta-glucuronidase in leucocytes from horses and high activity of acid phosphatase in granulocytes from pigs. Within species, arylsulphatase and beta-galactosidase activities were higher in granulocytes than in mononuclear cells, but beta-glucuronidase, phosphodiesterase and alpha-galactosidase activities were higher in mononuclear cells than in granulocytes. Eosinophils of cattl...
Vitamin K-dependent carboxylase in horse liver, spleen and kidney. The presence of vitamin K-dependent carboxylase is demonstrated in the microsomal fraction of horse liver, spleen and kidney. The carboxylating enzyme systems in the spleen and in the kidney are susceptible to warfarin in a similar way as is carboxylase from the liver. It is concluded, that during the administration of vitamin K-antagonists (anticoagulation therapy) carboxylase in all these tissues is inhibited. Since most probably the majority of the reaction products of spleen and kidney carboxylase are no clotting factors, the inhibition of their production is a side-effect of the anticoagu...
[Sarcocystis bertrami Doflein, 1901, a sarcosporidia of the horse. Equus caballus]. No abstract available
