thicking a heifers rear end

i have a heifer that i just A.I.d and her front end is nice a thick but her rear end is just not fiilling out i went up to a show last weekend and the judge said i need to thicken her ass out not sure how to do that is there a feed or suplament out there that could help me if you know of anythink please let me know thanks

Walk her up a hill. It's not that hard

does walking her up a hill really work

yes...but don't forget, you then walk them back down.    <cowboy>

what might be even better would be to walk in "sugar" sand if you have any where you live.  If not, hills are good.  I used to walk my show cattle 1.8 miles per day, about .2 of which was sugar sand (orange grove).

good luck!    <rock>