[Beetle01]

Ok what are pigs and chickens supposed to eat??? E-coli will be killed if the meat is cooked properly. E-Coli stems from uncooked food. Cattle are herbivores that consist of forages (grass and hay) and roughages (Silage IE..corn and wheat) Unless you can produce the evidence that corn creates E-Coli I am not buying into that. In case you didn't know roughages actually help the cows survive. The cobs from the corn actually scratch the linings of the cattles stomach and relases the bacteria that help digest the Grasses and corn that the cow consumes.

[ame="http://en.wikipedia.org/wiki/Escherichia_coli"]Escherichia coli[/ame], although considered to be part of the normal [ame="http://en.wikipedia.org/wiki/Gut_flora"]gut flora[/ame] for many mammals (including [ame="http://en.wikipedia.org/wiki/Human_flora"]humans[/ame]), has many strains. Strain E. coli 0157:H7 is associated with human illness (and sometimes death) as a [ame="http://en.wikipedia.org/wiki/Foodborne_illness"]foodborne illness[/ame]. A study by Cornell University [22] has determined that grass-fed animals have as much as 80% less of this strain of E. coli in their guts than their grain-fed counterparts, though this reduction can be achieved by switching an animal to grass only a few days prior to slaughter. Also, the amount of E. coli they do have is much less likely to survive our first-line defense against infection: [ame="http://en.wikipedia.org/wiki/Gastric_acid"]stomach acid[/ame]. This is because feeding grain to cattle makes their digestive tract abnormally [ame="http://en.wikipedia.org/wiki/Acid"]acidic[/ame]; over time, the pathogenic E. coli becomes acid-resistant.[23] If humans ingest this acid-resistant E. coli via grain-feed beef, a large number of them may survive past the stomach, causing an infection.[24] A study by the USDA Meat and Animal Research Center in Lincoln Nebraska (2000) has confirmed the Cornell research.

From wiki.