Clinical Research Abstracts British Equine Veterinary Association Congress 2015 Foreword and Acknowledgements This supplement is devoted to the publication of abstracts from the 2015 Congress of The British Equine Veterinary Association. The quality of research at the Congress was, as in previous years, high, and the selection process was difficult. Despite the inclusion of a larger number of research communications than in previous years only two-thirds of those submitted could be accepted. This year's Congress committee utilised the selection process initiated last year by Professor Celia Marr in partnership with EVJ. Abstracts were reviewed and objectively graded by two peer reviewers and a member of the Congress Committee before being subjected to a final selection process overseen by the Congress Chair. Thereafter, abstracts had to satisfy the requirements of EVJ for publication in this supplement. Those authors who have had their work accepted should be proud of their achievement. Those who were unsuccessful are doubtless disappointed; however, they have the reassurance that the standard was high and the process was fair. deserve thanks and recognition for a year of hard work. Particular thanks also to all of the anonymous peer reviewers who receive no recognition but gave their time not only to grade the abstracts submitted but also to provide constructive feedback to their authors. The selection process adopted for BEVA Congress sets a standard for other meetings to follow. Given the increasing competition for acceptance of research communications at major international meetings, and the importance of achieving acceptance for those seeking to fulfil the requirements of specialist colleges, such a rigourous selection process seems only right. Reasons for performing study: There are limited data surrounding the efficacy of oviductal flushing in restoring fertility in mares with repeated returns to oestrus. Objectives: To determine the conception and foaling rates in mares treated by laparoscopic topical application of prostaglandin E2 (PGE2) to the oviduct(s) in mares: i) in the breeding season (January-May), pre-covering; ii) in the breeding season, post covering; and iii) out of the breeding season (June-December). Study design: Follow-up study. Methods: Analysis of electronic patient records (EPRs) identified 29 mares that underwent oviductal flushing via laparoscopic surgery between 1 January 2008 and 12 October 2014. One mare underwent the procedure twice; once in the breeding season (pre-covering) and once out of the breeding season. Follow-up data were collected via EPRs and from Weatherbys (www.bloodstockreports.co.uk). Results: The procedure was used in 27 Thoroughbreds, one Warmblood and one Hanoverian. Mean age at the time of the procedure was 13.1 years (range 6-22 years). Mean duration barren prior to the procedure was 1.9 years (range 49 days-5.6 years). The mean time post flushing to the first positive ultrasound scan was 31 days, with average time post flushing to foaling of 367.6 days. Of ...