Show Heifer said:
The meat quality is like the limi breed. Even with the apparently big muscle appearance, their muscle FIBERS are smaller, therefore more tender than the "angus" cattle even when they don't marble. They are super lean, with very little backfat or marbling, but like I said, still very tender. The Amercian grading system can not handle such an animal and therefore their bad rap.
And yes, they are fine boned yet sound and can walk MILES!!!
I guess I can explain this too. The way double muscling develops is that back in early early development, when the cells are there but have not differentiated into what they are going to be yet (muscle, fat, bone, connective tissues), the gene causes more than normal to become muscle cells. That leaves fewer to go to other tissues - hence the fine bone, thin skin, and lack of marbling and connective tissue in the meat. So like Jen said, while the meat is not marbled, it is actually very tender. From working in the meat wing here at school, it was often easy to pick out the piedmontese (another double muscled breed) steaks....they tended to be light in colour (some you could mix up with pork!) and of course, no marbling. I'm told that the taste was generally milder. So you guys that are used to eating delicious beefy steaks probably wouldn't like it, but there could definitely be a niche market (brand) to the health conscious who would actually prefer a milder meat (because they're so used to eating chicken. maybe)
Jason - the muscles themselves work just fine. If these guys are going to have issues, it's more likely to be in things like calving ease, calf vigour, sometimes fertility.
Oh and since I've mentioned them a couple of times, here are what piedmontese look like. A little less extreme than Belgian Blues, but still awfully muscular.
http://www.lifestyleblock.co.nz/images/photos/Breeds/Piedmontese.jpg
http://www.beavercreekpiedmontese.com/hugo2003.jpg