NORTH MANCHESTER, Ind. — The stuff doesn’t even smell that bad.
In Henhouse No. 1 at the Hi-Grade Egg Farm here, the droppings from 381,000 chickens are carried off along a zig-zagging system of stacked conveyor belts with powerful fans blowing across them.
The excrement takes three days to travel more than a mile back and forth, and when it is finally deposited on a gray, 20-foot high mountain of manure, it has been thoroughly dried out, making it of little interest to the flies and rodents that can spread diseases like salmonella poisoning.
Standing by the manure pile on a recent afternoon, Robert L. Krouse, the president of Midwest Poultry Services, the company that owns the Hi-Grade farm, took a deep breath. The droppings, he declared, smelled sweet, like chocolate.
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