Millenium undergoes operation Dubai Millenium underwent surgery for colic in Newmarket last night.The champion racehorse, retired to Dalham Hall Stud through injury last year, will face a crucial 24 hours as he bids to recover from the operation to relieve a blockage of the small instestine.James Crowhurst of Newmarket vets Greenwood, Ellis and Partners, said the five-year-old had 'taken the surgery well'.'He will be in intensive care for two or three days. The next 24 hours will be crucial. Positive news is that we were able to operate before the gut became too damaged.' said Crowhurst.