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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number K9314-2

Annie, born March 3, 2000, is a clone of a pure-bred Jersey calf whose cells were modified with genes for producing lysostaphin, a protein that kills Staphylococcus aureus bacteria, a leading cause of mastitis disease in dairy cows. She is the first transgenic cow clone engineered to resist mastitis, which costs the U.S. dairy industry $1.7 billion annually.

Photo by Scott Bauer



640 pixels wide: (k9314-2.jpg)




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Last Modified: 5/23/2006
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