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...

Abdominal wall hernia was detected in 4 pregnant mares. Antemortem diagnosis of the specific abdominal wall lesion was difficult. Ventral deviation of the abdomen, associated abdominal wall edema, and pain indicated rupture of the prepubic tendon. Three mares examined at necropsy did not have a rupture of the prepubic tendon but did have herniation of the abdominal wall. Abdominal pain was seve...

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 ...

The aim of the research was to determine differences in IL-1ß, IL-2, IL-4, IL-10, IL-17, INF-γ, TNF-α and IL-1ra blood concentrations pregnant non-pregnant healthy mares. mares were divided into two groups: (n = 18; age 6.11 ± 2.25 years); 6; 5.67 1.75 years). Blood samples collected from all 24) three times every month, then group subgroups based on pregnancy (1st 6)—6th, 7th, 8th; 2nd 6)—7th,...

REASONS FOR PERFORMING STUDY To investigate effects of a 5-day oral misoprostol regimen recommended for use in horses as a gastrointestinal mucosal cytoprotectant during colic on mid-gestation pregnancies. OBJECTIVES To monitor cervical tone, ultrasonographic characteristics of the uterus, cervix and conceptus, as well as serum progesterone and oestrone sulphate concentrations, and observatio...

Anti-Müllerian hormone (AMH) has been observed to decrease with the development of hemorrhagic anovulatory follicles (HAFs) in mares. Two studies were conducted to evaluate AMH concentration in mares with HAFs compared to seasonally anoestrous and cyclic mares, and to elucidate changes of AMH with the development of luteinised unruptured follicles (LUFs). In study 1, AMH and progesterone were e...

Forage availability should cover most needs for mares bred during spring and summer. Out-of-season breeding, lack of access to pasture, or good quality forage calls nutritional supplementation. Current evaluations broodmare are based on fetoplacental tissue requirements, but do not consider endocrine changes that the maternal diet affects long-term foal health. This article reviews pregnant mar...

In 1938 Marker, Rohrmann, and Little (2) isolated from the urine of pregnant mares a new isomer of pregnanediol that they called uranediol. Ten years later, Klyne (3) obtained from the same source a sulfuric acid ester that yielded uranediol on acid hydrolysis. The structure of the free compound was determined by Klyne (4), who showed that it was a 17a-methyl-nhomo-5cr-androstane-3fl,17a&diol (...

Breeding records of 57 Arabian and 66 Thoroughbred mares were analysed to assess their reproductive performance under the subtropical conditions of Pakistan. The Arabian mares showed significantly higher conception rates (p<0.05) in second mated oestrus and foal heat mated oestrus compared to Thoroughbred mares. However, conception rates for first lifetime mated oestrus were similar in both bre...

Aging has been associated with declines in somatotropin and IGF-I levels as well as declines in immune function. To determine the effects of age and whether ST administration could reverse immunosenescence in horses, eight young and eight aged female standardbred horses were given 10 mg/d recombinant equine somatotropin (eST) or vehicle buffer for 49 d. Plasma IGF-I concentrations in both age g...