Tube feeding is the safest thing to do.i don't mean to offend you or start a fight (really, really, please do not take offense) but I thought that feeding with a syringe was dangerous due to risk of drowning?
Syringe feeding is ok IF you are careful and don't force food or water down the wrong "pipe."
Good pics of inside of a mouth here:
Safely Administering Oral Medications to Poultry