Abnormal conditions associated with parturition do not directly prevent delivery but may indirectly cause concern and become evident prior to labour (3, 8). The prepubic tendon is the tendon sheet attached to the abdominal muscles that supports the entire abdominal contents, including the uterus (10). Rupture of the prepubic tendon mostly occurs with a higher incidence in older drafttype (5, 7,...

ABSTRACT: The objectives of this study were to evaluate the correlation fetal sex and plasma testosterone concentrations between 5th 8th months pregnancy in mares verify applicability test predict sex. Blood samples collected from 21 at 30-day intervals 150 240 days pregnancy. Plasma was determined by radioimmunoassay foals confirmed birth. levels maternal higher carrying female fetuses 5 8 (P ...

arteritis virus (EAV). EAV infected horses show various clinical sings such as pyrexia, edema of the legs, conjunctivitis, and diarrhea. Abortion occurs in pregnant mares infected with EAV, at a rate of approximately 50% during field epizootics. In the breeding areas, abortion is the most significant manifestation of EVA, however the pathogenesis is not well understood. The purpose of this stud...

Plasma concentrations of glucose and insulin following a meal were compared in twelve Thoroughbred mares fed a pelleted concentrate (PC), a traditional sweet feed high in sugar and starch (SS), or a feed high in fat and fiber (FF). The feeds had similar DE and CP but differed in fat (19, 32, and 166 g/kg DM, respectively), NDF (199, 185, and 369 g/kg DM, respectively) and nonstructural carbohyd...

Abstract Nine pregnant mares (18.2 ± 0.7 y; 493.82 13 kg BW) were used to test the hypothesis that dietary supplementation of arginine would enhance placental vascularity and nutrient transport throughout gestation in aged mares. Mares balanced by age, BW, stallion pairing, randomly assigned one two treatments consisting supplemental L-arginine (50 mg/kg BW; n=5) or L-alanine (100 n=4; isonitro...

BACKGROUND Validation of a method for the minimally-invasive measurement of physiological stress will help understanding of risk factors that may contribute to stress-associated events including recrudescence of Equid herpesvirus (EHV), which is anecdotally associated with sales consignment of pregnant Thoroughbred mares. In this study we compared two similar groups of late-gestation Thoroughbr...

Equine herpesvirus type 1 and type 4 (EHV-1 and EHV-4) cause infections of horses worldwide. While both EHV-1 and EHV-4 cause respiratory disease, abortion and myeloencephalopathy are observed after infection with EHV-1 in the vast majority of cases. Disease control is achieved by hygiene measures that include immunization with either inactivated or modified live virus (MLV) vaccine preparation...