All my girls came from a litter of 16 I believe except the 2nd time mom so 4 of 6 I was talking about did and 2 out of the 4 on there 1st litters put up 14 and 12 and then the other 2 put up 5 and 4 .. the 4 females that r breeding now came from another one no my females that had a big litter and her pups where huge when they came I swear I was amazed how big they were and they were walki ng in like less then 2 weeks .. the room is around 65-70 depending on how cold it is outside and I feed them doggie bag .. witch I heard was ok.. I was thinking of switching to mazri .. I do not back to back my girls at least get close to 3 months off