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United States Department of Agriculture

Agricultural Research Service

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Image Number K8772-15

To isolate bacteria present in swine waste samples, microbiologists Rhonda Zeltwanger and Michael Cotta work in an anaerobic glove box. Because most of these bacteria are strict anaerobes, many manipulations must be performed in the absence of oxygen.

Photo by Keith Weller.

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Last Modified: 8/13/2016
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