Had a price today for implant for hobs £60 and it would last up to four years but they only guarantee it for 16 months, needs to be done five weeks before they come into season as it takes this time to work.
I'd breed the mother and son and keep the best hob and put it over one of its anties then a hob of them back over the old jill. I personaly woulden't breed brother to sister tried it few years ago and had a few problems.