You are right! This is well known and they do it for several reasons to keep meat look fresh for several days in storage. I do not think this happens in Pakistan because we have several other ways to do the things.....but again....it is not matter of West and Pakistan or middle east......Bussiness men are cruel all over the world they are hungry of money and running after money day and night they look for more profit every second on every cost.
This is the world........that is why if you believe in Allah and his book and there is explanation for all these things.........Ah!!!!! wish we have ever read and understand the Quran.......