my filly mona lisa ever touches her feed, i mean she nibbles a bite than leaves it and eats down her hay like nothing. when she was born they were out on pasture grass all summer and fall. when we bring the foals home to wean them she hardly touches the feed...her half brother jazzy is a pig and eats all the feed and hay. why won't she eat the feed? what can i do to make her eat the feed?