Before Christmas, I decided to upgrade my two female pigs from a 160 Ferplast cage in their shed to having half of the shed floor, approx 50sq ft, covered with thick lino, then softflake shavings with piles of hay around the area. They normally have 50 gr of Versele Laga pellets and veg. This is much better healthwise with them moving around a lot and at 4 1/2 years should help bladder health and feet too. The issue is that both have lost weight , going from around 1000gr to 850gr and 870gr. as of today. I am giving them much more hay which they eat and they both have great teeth. I assume as both look good, the extra activity is the cause for slimming down! Has anyone else had their piggies slim down as older pigs?