60kg/13mm, 90kg/ 20mm, 80kg /21mm, 40kg /13mm
The first 3 were nearly 4 year old castrated, kept with 3 gilts. They were on 2 feeds. Fruit and veg, then a bucketful mix of pig nuts (about 1 scoop), sugar beet and scoop of oats between them. Reduced feed down to about 1/2 as they went the journey and fruit and veg correspondingly reduced. Sometimes I don't give them any - depends on what I've got - may shove it into the weaners instead. Apart from the first one, the 6 were over weight when I got them in March. He was probably the runt and looked about right fat wise to my untutored eye. I was surprised at the time that he was as much as 13mm. The gilts have gradually lost some fat, but are still overweight.
The 4th one was about a year old. Got her in February with her larger sister. They were like micro size pigs. They got about the same to eat as the 6 apart from double the pig nuts and less sugar beet. Last couple of months I reduced their feed down to quite a bit less than half a bucket. They grew rapidly. I decided that this one would never make a decent size, so off she went. They were never really fat looking, but certainly not lean.
Seems to be an art getting it right. Trying to have a look at someone's who sends a lot away and consistently gets6mm. Only get to see the carcasses, so need to see a before to get my eye in. Just seen a Tamworth boar and sow and very surprised at how lean they are. Running together with a litter. Seem very tall, but no width at all across their backs. In comparison mine are all solid and broad. Probably too much!