Since there are approximately 15 to 25 milk ducts in each breast that make milk, there are several pores in each breast where milk comes out of, not just the
single hole in your nipple.
I am sure it is better for there not to be any
extra holes in the nipples, but it says that one can... and the title says things that MAY prevent breastfeeding...
Be sure there are not too
many holes in the nipple, or too large of a hole, because if the flow is to fast the puppy may have trouble ingesting the formula.
If your puppies have difficulty getting milk out of the bottle, use a sterilized needle to poke a few
more holes in the nipple.
Some customers have reported receiving pacifiers with
a hole in the nipple tip, resulting in too much airflow into the baby's mouth.
Picard15 wrote that in order to stop the abundant flow of milk from a bottle with an artificial nipple (with a large hole in the end), the infant was forced to hold the tongue up against
the hole in the nipple to prevent the formula from gushing forth.
Formula should drip slowly from
the hole in the nipple, not stream out.
Check
the hole in the nipple — is it too big?
Make sure
the hole in the nipple is the right size and / or flow for your baby.
Be sure that
the hole in the nipple is not too large while bottle feeding.
After checking that
the hole in the nipple is not clogged and the reservoir is properly inserted into the insert, empty the reservoir by loosening and then re-tightening the nipple collar if the reservoir bulb remains more than 1/3 full when bottle is upright.
The size of
the hole in the nipple is critical for success.
Use very fine scissors or a hot needle to make
a hole in the nipple.
Commercial milk formulas, which can be obtained from pet supply stores, should be fed warm in a small bottle with
a hole in the nipple.