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United States Department of Agriculture

Agricultural Research Service

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Image Number D612-1

Microbiologist Todd Callaway (right) and technician Jim Snodgrass mix in a sodium chlorate compound with this cow’s normal feed to test its effectiveness in reducing Salmonella and Escherichia coli 0157:H7 in the animal’s gastrointestinal tract.

Photo by Robert Droleskey.

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Last Modified: 8/12/2016
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