My cornish crosses were on regular chick starter for about 2.5 to three weeks (thats how long they were at the feed store before we bought them) but I don't want them on medicated food anymore. I can't get chick starter in non-medicated form, so I've been feeding them gamebird starter. It's 22% protein, which is the same protein level as the meat chick grower, but it's A LOT cheaper, which is why I've been feeding that instead of the chick grower. Is this okay to do????