bull pens and bull gain tests

[plbcattle]

what size pens do you run your bulls on test in, how many bulls and how large is the land, is your maintance pens and development pens the same. what is the best feed during test for the bulls. I was looking for something that fould be feed free choice that has a good enough limiter that they won;t eat it all.after test all they get is hay and blocks. they are pushed on the-+ 112 day test. what is your test consist of and why, Thanks