For all we know, “one of the world’s largest meat producers” – or rather, their PR flack – was just parroting the unsourced line from the McDonald’s CEO.
Revisit Occam’s razor once again. For all we know… aliens, dude.
If people really knew where this picture came from, someone would have managed to dig up a lot more information about it by now.
People really do know where the picture came from. Once again, see the McDonald’s CEO interview. It’s from a meat production plant in China. See the BFI interview and look at the Fletcher sample. It’s chicken. 
Once again, it’s no mystery to me (not sure why it is to you?) why there isn’t some official credit for the photo and more details, most of the industry is very opaque.
A Chinese company that makes controversial pink slime isn’t going to suddenly shift gears and become transparent after a controversial, leaked photo rotates around the world and effects other wealthy, corporate interests they are beholden to.
It would appear that you don’t understand how most corporations and industry works in reality.
Then once you combine that with the fact it looks just like mechanically separated chicken as well
I don’t think it does.
Of course you don’t.
Yep, looks nothing like it.
