Greenerlife
When you say 65-75Kg is that the killed out weight? I think mine were 60-70Kg live but once gutted etc were 35-45Kg apparently.
I beleive I have been feeding them well on a good feed, (Marriages No2 cube). and they have also had a nice large fresh field to forage in for acorns apples etc. I had wormed them regularly too so I am sure that was not an issue either.
I can only assume that I must need to feed them more as My saddleback boar and 2 sows, although not registered, are of pretty good form.
Thanks all.