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Basically I say that under most broad and worst case scenario. I have always raised my own feeders. Mice,Rats,Gerbils, and now ASF's. I have mainly ASF's now I bought from someone who had 4 different lines and I have added another genetic line.I can honestly say I have some of the most healthy feeders I have ever had. Feed and treat them right, be very careful of line-breeding and you will have less problems down the road.