Word: rumen
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Dates: during 1970-1979
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...only increases air pollution and drying it takes up too much space. A more promising approach is to reduce each animal's excretion. Farmland Industries of Kansas City, Mo., has developed grain-sized plastic tabs that, once eaten by a cow, lodge in one of its stomachs, the rumen. There they take the place of roughage, reducing the animal's need for hay. Such cattle subsequently produce up to 40% less manure than those fed conventionally. Another scheme calls for injecting manure with special bacteria to hasten decomposition...