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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number K11770-1

Purdue University graduate student Danielle Cary (left) and immunologist Susan Eicher feed a calf a fluorescently labeled supplement that will enable them to determine where the supplement acts to boost the immune system.

Photo by Peggy Greb.

640 pixels wide: (k11770-1.jpg)

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Last Modified: 5/23/2006
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