Thanks for the answers, which are confirming what I was thinking, but what I don't understand is why even the french riders are using that recipe and I saw also the groom of Sergio Tomassi crewing for Qatar doing the same thing.
But then I formulate my question on another way : which king of food to give *during* the race, of better not to give anything and let the horse a free choise at the stop after the vetgates?
Anyway thanks and greetings from Belgium
Leonard