The Birds and The Bugs
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It seems hard to imagine that, just a century ago, it was rare and expensive. But over the course of the 20th century, both chickens and the chicken industry exploded in size. Much of that growth can be attributed to antibiotics.
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Fecha: August 16, 2017 at 02:30PM
via Digg Health: http://ift.tt/2uJ7YWt
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