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For dairy farmers and veterinarians, cow magnets play an important role in caring for cows. When a cow eats grass, he also swallows tramp iron (any metal lying around), such as nails and pieces of a wired fence. A cow magnet prevents this tramp iron from harming the cow. Without a cow magnet, the swallowed tramp iron can cause hardware disease. Hardware disease involves irritation and inflammation of the cow's vital organs. A cow swallows the cow magnet, a small and smooth magnet. The swallowed magnet goes to the front of the cow's stomach and attracts any harmful tramp iron the cow may eat, preventing the metal from harming the cow. If you don't use a cow magnet to prevent hardware disease, the condition may cause your cow to lose her appetite, reducing the cow's milk production. One cow magnet lasts the cow's entire lifespan. In addition to a cow magnet, you can help prevent hardware disease by picking up any tramp iron lying around in your cow's pasture area.Significance
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by bagicide stayed 10 months too long on February 8th, 2010
The "professionally researched" answer has it right, but what was left out is that because of the way a cow's mouth is made, she lacks the ability to spit the metal out once she picks it up.
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