Excellent post, thank you for the information! In regards to the cost analysis: The cost comparison was made for a one year period with various amounts rats. This doesn't seem to include, however, if you keep resupplying your own breeders over many years. So there would only be the initial cost of buying the rats the first year, after that it would be just maintenance. So in the long run, the differences in cost between raising your own vs F/T would be amplified. correct?

How many female rats can you keep per tub/enclosure?

JonV