I've never had to hand feed babies, but here's what it says in "After forty years Alice Kline talks about chinshilla";
Homogenized milk (cow milk)
A little Gerber's mixed baby cereal
A few drops of Dyne (optional)
Stir-heat to luke warm and feed drop by drop.
If the baby has trouble with the milk coming out of it's nose, add a little more cereal and make it a little thicker.
If the baby gets soft droppings, use less Dyne", if the baby gets diarrhea, brown some flour in an UNGREASED pan and mix this with the milk for a day or two in place of the baby cereal.
Do NOT use canned evaporated milk. Baby chins do not handle it any better than human babies.
Do NOT use Karo Syrup, as it is hard to control diarrhea when using it.
If you should be able to get goat's milk, dilute it with distilled water 50/50. Enrich it as the baby gets older.
DO NOT put a coaster of baby cereal or rolled oats in the cage for the baby. ... their intestines get stopped up from the smooth food. When they get old enought start them with the mixed supplement in a coaster in the cage, or crushed pellets.
Hand fed babies are ususally fed a few drops every 2 hours the first day, then every 3 hours the second day and the every 4 hours after that. Give them as much as they want. They will tell you when they are full. In ten days they should be drinking mild from a bottle hung on their cage and hand feeding can be cut to 3-4 times a day.
I hope that helps some, that's as specific as she gets in the book.