If these are hatchlings You plan to sell I suggest starting with mice and then rats...Not everybody has access to ASFs, so they should be used a last resort...
I've never had to use ASFs to get hatchlings started...I only use them for a few stubborn adults
The hatchlings I am keeping I guess I will feed asf's to as they are breeding better than my mice. The hatchlings that I am selling Will be started on mice.