This article is from the WSSF 2016 AFRMA Rat & Mouse Tales news-magazine.

From Jozzette Hagemann, Jozzy’s Rat Pack Rattery
Put drops of coconut oil on a cookie sheet, plate, or tray. Put the tray in the freezer until they harden. Give the rats a drop as a treat. This is good for the coat, digestion, and helps absorb some nutrients straight to the liver instead of going through the digestive tract so it can go straight to the brain.

From Jozzette Hagemann, Jozzy’s Rat Pack Rattery
To get the buck grease off a Hairless rat, massage olive oil all over the rat—the oil lifts the grease—then with the oil still on the skin, use Dawn® dishwashing liquid and warm water and give a massage bath, rinse off; can repeat again. Takes the grease right off.