Hi my hen has been sitting for 24 days. I had one egg out of 6 pip but died in the shell. My question is if I try to salt her with babies from feed store. They only have 5 or 6 day old babies. Will this work? Or is that to old and need closer to 1 day old. I must add my hen sat for several days with no eggs after I took away a non fertile egg. She seams very persistant.