Yep, I agree with Helmstead, Mom probably ate the placenta. If I were to give BoSe I would only give a tiny bit...like 1/4 cc given SQ
You can use a baby bottle which is just right for Nigerians. cut the nipple hole just a little so you have a better stream. As long as your little one has a strong sucking reflex I would do it this way. I would Put a rope around mommy's neck, push her up against a wall and hold her with your knee (or body)...and let that baby drink all it wants. Try dribbling some of her milk on the top of the kids head and let mommy smell it.
If she still rejects it...well congrats...you have a bottle baby. Cows milk is much better for it than the store bought milk replacers....but use Mommy's milk if you can get it.
If you want to leave the baby outside with Mommy you can just cut the sleeve off an old sweatshirt and make a sweater for the baby...using the cuff of the sweatshirt around its next...mmmm...cozy...
I wouldn't leave them out until they can maintain a body temp for a while. I think it takes 24 hours before they are able to regulate their own temps.
If you keep them in the house, you can use preemie diapers with a baby onesie over it to keep the diaper on.
You can also give the kids goat nurtradrench..which you can get at tractor supply. Baby's get about 2 cc's. Its an oral drench full of nutrients.
Good luck with your new kids...they are ADORABLE!!!