I can tell you what I do. Mine has Ensure (adult liquid supplement), pedylite (baby supplement) and tiny bit of liquid calcium (if you have it), toss that all in a blender with the bug/bugs of your choice. Make sure you strain it well as bug part will not go through a needless syringe.
I get the curved tip syringe and drip it on the chams nose. If that doesn't work I put the curved tip just inside the gums (not inside the mouth it's self) and give it a tiny drop. Just keep with it.