Thank you, I've had really good advice on this forum which has completely changed the way I care for the pigs. Their old cage just wasn't big enough, they were in it for I think around 2 weeks and the females have gained so much weight in that time as they went from being really active outside (running through tunnels constantly) to just sitting round all day eating! Literally becoming balls of fat! I've had people think one of them is about to give birth, which is not the case atall atm, just lack of exercise!