OK Randy@AppleCreek
I feel...In my opinion...That you could use a bucket to feed if you used red cap...
but do not feel it would be safe to do so with formula...I would ask the formula manufacturers, How they feel about it...
I have one deer out of 15 that I need to stop from making a pig of herself ...I make her stop for a few minutes, then will give her more if she wants...but the rest eat/drink all they want and are doing great.