First, we cut out everything about 7 days out. My last three hard days are the Friday, Saturday and Monday prior to the following Saturday show. My last "supplementations" are giving on that Saturday night, 7 days out. The last 12-14 days I regulate everything going in at intervals so I know what he will weigh morning, noon and night the last 10 days.

Check out the site sportsvet.com

One of the things about using studies and scientific data for other breeds in other sports is that only part of it applies to what we are asking of our dogs. The grey hound dog is going to need immediate energy, maximum output, incredible burst and his race is over in seconds. In this area there is little room for running hot so I am guessing (as I know nothing about greyhound racing) the supplements can be fed up to and maybe throughout training. Again I do not know how often the same dog races each day/week/event. If it us multiple times in a day or weekend then there is rest periods in between as other races take place. In those cases I think one could supplement lesser amounts over longer periods of time. Again, just an assumption.

Next would be the sled dogs. The initial burst to get going and then the steady all day drain places a different demand on the body thus it would need different supplementations. In that all day drain they also have the benefit of colder temperatures. Musher.com magazine has some nice articles on sled dog nutrition, especially fat content that are really informative.

Then there is the hunting/game (bird)/tracking and treeing type dogs. They jog around until they jump and then it is an all out sprint over long stretches til they tree or something is shot. They load up (resting) and go to another spot and do it again several times thru the day. (These are the most impressive to me because most of these hounds are fed gravy flavored cardboard straight out of a bag. How they give what they give all day is amazing to me in itself, but a different topic altogether).

Not that anyone needed a history on the types of sporting dogs but there are tests and studies on feeding and supplementing these dogs. No university or dog food company is testing for the bulldog. The bulldog owner has to draw from each of these "known studies" and choose what applies as we need them all at varying times through out a show. Thus, varying training methods thru a keep works best and supplementing in proportion to work is best.

R2L, after all that babbling my answer to you would be an honest, " I do not know about your specific question". My best advice would be to try it and see. Maybe not for the show but maybe for a end of schooling hard roll where one would be in control of the outcome and would not lose dog nor money, only time. Trading time for knowledge can be priceless. There are so many variables in supplementing dogs (just like EVOLUTION said about dex, not all dogs react the same) your dog may do fine on that supplement all the way thru and mine may not do so well.

Another one of my opinions, conditioning a bulldog is far more art than science. Lots of variables, lots of subjective ideas, lots of bias, lots of 'what I like to see'.

Apologize for the babbling on. Best of luck. EWO