Now you found one! This is the link to the actual paper:Study: GMO Feed Harmful to Pigs | Health Impact News
...“This is an animal welfare issue. Responsible farmers and consumers ... out of all GMOs from animal feed ... GM_Soy_Linked_to_Illnesses_in_ Farm_Pigs ...
Basically, the GM gene that was inserted produces a protein that causes herbicide resistance in the soy.
That protein is therefore in the plant when the animals eat it - and it causes two problems:
1. an inflammatory response such that pigs get ulcers
2. a hormone agonist (probably estrogen) that increases uterus size
Thanks! You finally found one :)
And, holy crap, it's really disturbing.