If you're at all concerned about affecting the numbers of pedigree breeding pigs (because some breeds' lines are so rare that the loss of even one breeding pig
would make a difference - mainly the more vulnerable ones such as Large Black) then search the herdbook using the bloodline
Here's the page you'll need
http://www.grassroots.co.uk/cgi-bin/start.cgi/pedeweb/BPA/pages/welcome.html select the breed by ticking the top box and enter the bloodline in the 'animal name' box. For example: I have an OSB, who is Yonderton Elsie 2 so I'd click the OS box and enter Elsie in the animal name and from that see that there are loads of registered Elsie's - and wouldn't feel quite as bad about sending her off. Some lines only have 6 or 7 registered pigs - if that's the case with either of yours talk to the BPA bred rep or the breed club and try to find them a breeding home asap
If you do decide to eat them they'll be fine
Keep them as pork providing you can do a slower cook and the meat will be nice and tender, but bacon, hams, sausages and burgers will all work too
We sent off some ooooold sows (they were almost 8 years old) they were supposed to be minced so I could turn them into sausages, but the butcher cut and packed them as joints instead
because he felt the meat was too good to be wasted in sausages............ he was right (but it did need a slow cook in liquid to keep it tender)
HTH
Karen