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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number D619-1

DNA-based technology complements traditional methods for identifying cattle, like the ear tags on these USMARC cross-bred calves, and provides a means for identifying the sire in pastures where multiple bulls are used for breeding.

Photo by Peggy Greb.



640 pixels wide: (d619-1.jpg)




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Last Modified: 12/21/2006
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