This spring we got both a purebred Tamworth and a purebred Berkshire boar. The Berkshire is better tempered. We also have other Tamworths. Generally I find they grow more slowly than our main herd which is a mix of primarily Yorkshire, Berkshire, Large Black, GOS, Tamworth and some others. The main herd grows faster and bigger - but then I've been doing intensive selective breeding on them for nearly a decade so they have that advantage.
The reason I got the Berkshire boar was for the marbling.
The Tamworth boar was an accidental acquisition. In general I would not look to add Tamworth. I don't find them to be as fast growing, as big, as good mothers or as good at pasturing as our main herd. I'm watching the Tamworth line that we have looking for what good might come out of it. I crossed it with Large Black and am now crossing it with the Berkshire. If I don't see what I want I'll set them as terminal generations. It takes a long time to figure this out though.
I did taint test all of the incoming lines and they came up negative:
Have Your Pig and Eat It Too | Sugar Mountain Farm
Maybe it's the genetics, maybe the feed, maybe the pasturing. Good to know though.
Taste wise I am not impressed with the pure Tamworth. It's okay. Better than store bought pork but not as good as our main lines. I have yet to really get to sample our Berkshire line and it will be a cross through the main line and TamxLB lines.
I breed and feed for about 3/4" to 1" of back fat with good marbling. If you're getting too fat pigs then back off the calories in the diet.
Sugar Mountain Farm
Pastured Pigs, Sheep & Kids
in the mountains of Vermont
Sugar Mountain Farm | All Natural Pastured Pigs, Poultry, Sheep, Dogs and Kids in the mountains of Vermont