Treatment of pregnant mares to prevent abortions due to equine piroplasmosis is a novel idea practised empirically at some Thoroughbred studs in South Africa. This paper presents the results of an investigation to ascertain whether imidocarb dipropionate crosses the equine placenta. Three pregnant mares were injected intramuscularly with imidocarb and their foetuses were mechanically aborted at...

A new abortigenic disease, now known as mare reproductive loss syndrome (MRLS), significantly affected the horse industry in the Ohio River Valley of the United States in late April and early May of 2001 and 2002. In 2001, approximately 25% of all pregnant mares aborted within several weeks (over 3,000 mares lost pregnancies), and abortion rates exceeded 60% on some farms. Mare reproductive los...

third-degree perineal lacerations in 7 mares were repaired surgically by a one-stage method (goetz technique). primary healing occurred in all of them without any complication. the conception rate obtained after surgery was 70.1%. five horses out of seven got pregnant after surgery and no further injury was seen at subsequent foaling. three mares have produced several healthy foals without any ...

Bacterial reproductive tract infections are associated with significant time and monetary loss in the equine breeding industry, with an estimated at 25 to 60% of barren mares. Treatment and resolution of mare urogenital infection involves consideration of the systemic health of the mare, correction of urogenital anatomic defects, and enhancement of uterine clearance in non-pregnant mares, ident...

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...

UNLABELLED Our aim was to compare Corpus luteum (CL) development and blood plasma concentration of progesterone ([P4]) in thoroughbred mares after spontaneous ( CONTROL C) or human chorionic gonadotrophin (hCG)-induced ovulation. Lactating mares (C=12; hCG=21) were daily teased and mated during second oestrus post-partum. Treated mares received 2500 IU hCG i.v. at first day of behavioural oes...

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...

Transrectal ultrasonography of the caudal uterus and a progestin profile were evaluated for accuracy in identifying mares with feto-placental compromise in a model of placentitis. Twenty-two pregnant ponies were divided into four groups: (1) control mares (n=5); (2) instrumented controls (n=2); (3) instrumented inoculated mares (n=11); (4) inoculated mares (n=4). Mares in Groups 3 and 4 were in...

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...