Hiya, I'm back, having sorted my lot out. Basically, if you want pork, you should slaughter at about 140lb (63-64kg) weight and if you're going for bacon, its 220lb (118kg). The other thing I didn't mention before was to make sure you've got really good fencing, especially for Tamworths, as they dig more than other pigs (long-snouted!). We put a string of barbed wire at the base of the fence, which deters them somewhat. Just on a personal note, if you're going to keep them through the winter, be very careful when you go to feed or check them - pigs are very lively & can knock you over, especially as they get bigger, and if the ground gets wet & slippery, it can be very dodgy! I once went to feed mine on a winter's day, when it was very wet & one of my wellies got sucked off in the mud & I ended up flat on my face in a mass of mud & pig poo! Not a pretty sight, but could have been dangerous as well if the pigs had come over to investigate. There's a website www.pigsparadise.com which you might find useful, also a book "The complete book of raising livestock & poultry" by Katie Thear & Dr. Alistair Fraser (published by Pan). Hope this helps - keep me posted as to progress! K