Hi S.~
When my husband would give my babies my breastmilk from a bottle, he would sing softly to them, while craddling them so close to his chest and even a little bouncy motion. (Sit on the corner of the bed with feet on floor and move up and down with baby and bottle in arms.)
We were also coached by the NICU nurses to move the nipple around to stimulate the babies. (Also put the nipple in and move it around slowly in the mouth and begin to pull the nipple out very slowly, but not all the way out of the mouth. That got a response out of the babies to suck and catch the nipple before it was removed.)
However.... my daughter was not always receptive to the bottle even if breastmilk was in it. There were times where she flat out just wanted it from the breast. My husband would seem to take it personally and it seemed frustrating to him that she refused to be fed by him. I would just say... "Switch babies, please." Since my son would suck the bottle nipple or be breastfed without any problems." But... I would want to make sure my son was actually breastfed too. But the middle of the night feedings would often be me breastfeeding my daughter while my son was fed with the bottle by my husband.
I used Dr. Brown bottles and was happy with them. Is the size of the nipple not pleasing to him or the shape or texture of it? I had to start with very small preemie sized nipples since my twins were almost 10 wks. early.
It may be a good idea to be completely away from your baby while your husband is giving him a bottle. Even if he can't see you, your baby can smell your scent and want your breasts instead of the bottle.
Well good luck and congratulations on the birth of your baby. Babies are truly blessings from God.
~J.