Michael Pollan on Unhealthy Feedlot Beef
Author and small-scale cattleman Michael Pollan wrote recently in the New York Times about what happens to cows when they are taken off of pastures and put into feedlots and fed grain:
“Perhaps the most serious thing that can go wrong with a ruminant on corn is feedlot bloat. The rumen is always producing copious amounts of gas, which is normally expelled by belching during rumination. But when the diet contains too much starch and too little roughage, rumination all but stops, and a layer of foamy slime that can trap gas forms in the rumen. The rumen inflates like a balloon, pressing against the animal’s lungs. Unless action is promptly taken to relieve the pressure (usually by forcing a hose down the animal’s esophagus), the cow suffocates.
A corn diet can also give a cow acidosis. Unlike that in our own highly acidic stomachs, the normal pH of a rumen is neutral. Corn makes it unnaturally acidic, however, causing a kind of bovine heartburn, which in some cases can kill the animal but usually just makes it sick. Acidotic animals go off their feed, pant and salivate excessively, paw at their bellies and eat dirt. The condition can lead to diarrhea, ulcers, bloat, liver disease and a general weakening of the immune system that leaves the animal vulnerable to everything from pneumonia to feedlot polio.”
All this is not only unnatural and dangerous for the cows. It also has profound consequences for us. Feedlot beef as we know it today would be impossible if it weren’t for the routine and continual feeding of antibiotics to these animals. This leads directly and inexorably to the development of antibiotic-resistant bacteria. These are the new “superbugs” that are increasingly rendering our “miracle drugs” ineffective.
