ASF = African soft furred rat. They are a completley different species than mice or our norweigen rats. Mine average 15ish per litter sometimes a little more or less. The adults get about twice the size of mice, they have very little odor compared to mice/rats and are fairly easy to care for. I have seen them breed at 3 months old (compared to 6 weeks for mice) and sometimes as long as 4 months before they start but then its pretty steady pinks every 3 weeks. I honestly don't know how long before they slow down, once they start putting out less than 7 or 8 at a time they are "retired". The pinks are larger than mouse pinks and usually have a little hair at birth. They are cute little buggers but they don't like to be held, mine will let me pet them while they walk around the tub but if i pick one up it will jump regardless of how high up it is and if restrained will bite. Yes they are "spring loaded" and can jump really well .
