the aim of this study was to determine the seroprevalence of toxoplasma gondii in mares and stallionsin the province of ankara. sera from 168 clinically healthy horses were tested for the presence oftoxoplasma gondii antibodies using the sabin feldman dye test. toxoplasma gondii infection wasdetermined in 62 (36.9%) of 168 horses with the titers ranging from 1:16 to 1:256.

This case report describes the use of a subcutaneously applied 4.7-mg deslorelin acetate implant in a three-year-old Arabian crossbred stallion showing unwanted strong male behaviour. Following deslorelin acetate implantation the stallion showed a short transitional increase in male behaviour. A 'gelding-like' behaviour was noted 15 days (D15) after treatment. The horse was surgically castrated...

Some stallions produce ejaculates of low quality and/or low fertility when used for artificial insemination (AI). The purpose of these five case studies was to use Single Layer Centrifugation (SLC) to select the best spermatozoa from 'problem' ejaculates for subsequent use in AI. Sperm quality, in terms of motility, morphology and chromatin integrity, was improved in the SLC-selected samples co...

A 3-year-old Andalusian stallion was referred to the Veterinary Teaching Hospital of the University of Cordoba due to acute onset of colic pain. At admission, the horse presented a pronounced distension of the inguinal and scrotal region which was cold and painful on palpation. On rectal palpation no small intestine gas distention was noticed, and the left large colon was detected protruding in...

Selective breeding for speed in the racehorse has resulted in an unusually high frequency of the C-variant (g.66493737C/T) at the myostatin gene (MSTN) in cohorts of the Thoroughbred horse population that are best suited to sprint racing. Here we show using a combination of molecular- and pedigree-based approaches in 593 horses from 22 Eurasian and North-American horse populations, museum speci...

Testicular estrogen secretion is believed by many workers to provide the pituitary-inhibiting action necessary for the balanced function of the pituitary-gonadal axis in the male. Estrogens are known to occur in male urine, and their concentration can be increased by the administration of chorionic gonadotropin. However, since testosterone is readily metabolized to estrogen (l), the direct test...