Woofgang, so the rotten food theory is just a theory as they don't actually know.
"While no exact cause is known, water/food related cause, or bad water or food that would make the dog sick, have been ruled out. Some veterinary experts theorize it is a parasite, others theorize it is a bacteria. It is more widely believed that Alabama rot is caused by toxins produced by E. coli. Because the exact cause has not been found, a vaccine is next to impossible to develop. The cause of Alabama rot is under study as of 2014"
http:// en.wikipedia.org/wiki/Alabama_rot#Causes