hello, last year i bottle raised about 10 holstein calves in our barn during the fall/winter each calf had its own stall with hay on the floor. this year i plan on doing more at a time and we are using our old rabbit pole barn converted in to stalls. i plan on having a concrete slab floor with drainage for easy cleaning my question is: we live in sw, mississippi where our winter are not terriblbly cold we may have a day or 2 of freesing weather other wise upper 30 at night 40-50 during the day. we will have tarps for the night time wind chill but will a concrete floor be to cold for the young calves i was trying to avoid using hay because of the mess when they potty and figure the concrete will be the best way to keep the stalls clean. i can bottle raise 36 calves at a time and need easy maintance for keeping the stalls clean but worried that concrete will get to cold for them any input is appreacited.