I have 16 - 1.3 and 6 - 1.4 colonies of rats to breed for feeders for our snakes.
I have been keeping a male with the girls at all times and have a steady supply of various sized feeders.
My questions are should I retire the whole colony at once and start fresh or could I replace 1 or 2 females and a couple of weeks or a month later could I replace the other females. I already replace males after 3-5 months of breeding. I currently have 5 males and 20 females being raised up for new breeders and want to know what you think is the best way to go about it.
Thanks for any thoughts , opinions , and experiences.