Quote Originally Posted by DeeDub View Post
You got it right on the feathers. Chicks don't have true feathers. Fat content is the reason they're better. Its low. Def freeze them before feeding them. It will ensure any parasites are mitigated. Most people kill them humanely before putting in the freezer for obvious reasons. Just remember, its more than fat you worry about. The vit A in the organs is not good in high amounts for your frog.
Freezing doesn't kill everything and bacteria and viruses will survive by creating a protein shell around them. This protects them from dying during the winter and even protects them from heat for a period of time.

Heat is really the only way to kill everything unless you raise the prey item and treat it for parasites prior to killing it and then freezing.