Stallions were subjected to a gradually increasing photoper iod beginning on October 15, 1973. The maxi,mum artificial daylength (16 hr) was imposed on February 8, 1974, and maintained until October 6, 1974. Two ejaculates were collected from each of five treated and four control stallions weekly, with an interval of 24 hr between the paired ejaculates on the first and alternate weeks, and an i...

Klinefelter's syndrome is one of the known causes of azoospermia or cryptoazoospermia, and it may present in non-mosaic (47,XXY) or mosaic (47,XXY/46,XY) form. The likelihood of finding spermatozoa in the ejaculate or testicular tissue of patients with mosaic Klinefelter's syndrome is low, and with the non-mosaic form, even lower. We describe a patient with non-mosaic Klinefelter in whom initia...

Background: Brazil is the second country on equine embryo world production. Problems related to the application of equine embryos transfer in Brazil are discussed in this article. Review: The main factor related to low efficacy of Equine Embryos Transfer programs consists in the difficulty to induce multiple ovulations Among the most common difficulties and limitations faced in our country, we ...

The beta subunits of equine lutropin and equine chorionic gonadotropin were incubated in 0.013 N HCl for 30 min at 110 degrees C and separated into two fragments by reverse-phase high performance liquid chromatography. The amino acid and carbohydrate compositions of both fragments from each subunit were analyzed. The results demonstrated that equine lutropin-beta has a glycosylated COOH-termina...

Assessment of lameness is an everyday task for many veterinarians, it is an essential part of a prepurchase examination and the Royal College of Veterinary Surgeons (RCVS) has included it into the list if 'day one skills' for veterinary graduates. Recently, the first public National Equine Health Survey pioneered by the Blue Cross animal charity and supported by the British Equine Veterinary As...

We evaluated antigen detection kits for human rotavirus with regard to their usefulness for diagnosing equine rotavirus infection. Limiting dilution analyses showed that of the seven kits investigated the Dipstick `Eiken' Rota (Dipstick) had the highest sensitivity to two serotypes of equine rotavirus. The Dipstick did not cross-react with several equine intestinal pathogens. An investigation u...

background bone marrow and adipose tissue are two main sources of mesenchymal stem cells (mscs). some of studies suggest that there are some differences in gene expression profile of mscs-derived from various tissues. to investigate gene expression profile by qrt-pcr, an appropriate reference gene with stable expression level should be chosen for normalizing data.  this study was designed to ev...

Equine coital exanthema (ECE) has been reported in many countries, but equine herpesvirus 3 (EHV-3) has been isolated only once in Japan. In 2015, symptoms of ECE were found, and EHV-3 was isolated in two stallions. Valacyclovir, an anti-herpesvirus agent, was administered orally. The stallions rested from mating for more than two weeks, causing enormous financial losses because of their high f...