Well i sugest if everyones full of shite do the looking for yourself , aplastic anemia exists & can cause problems if there left in prolonged season, fact, you asked the questions , you were given opinions
And for the record i didnt sugest they had to be breed, they need bringing out of season because there induced ovulators & that means the hormone levels are higher & thats is what causes the red blood cell problems hence the anemia
To be honest your looking for the cheapo option, you want ferrets but you dont want to have to do anything other than feed them cost wise , w