Dairy/Meat goats?

can dairy goats compete in a 4H meat contest, and if so how can we make them meatier for the compitition.

We are first timers and when we registered our goats that we thought were looking really good we realized the others were way fatter then our lean but muscular goats, when checking why we were told ours was more of a dairy breed, not a meat one. But they are in it now so how can we help them look meatier for competition?

Thanks for any help.