ADM has an awesome creep feed that is called Rough N Ready 15.7 it has Amino Gain, Bovatec, and roughage buster. Caution it is super expensive per ton but the conversion is the best around boasting close to 3.5 to 1. Most creeps are going this way of incorporating higher fiber less starch and including bovatec so most that are made that way will be the better bet. I would just stay away from high starch creep as it doesn't help females and conversions can drop to as low as 10 to 1. Hope this helps.