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Biology - Mice on the move

ORNL's 3,500 strains of mice made at ORNL can be shared for studies among the seven partners in the Tennessee Mouse Genome Consortium because researchers were able to develop a way to transfer mouse stocks via embryo. Researchers could not simply send existing mice at ORNL to the other institutions because the mice carry a number of germs and parasites common to wild rodents. Over the next five years, the mouse embryos will be surgically implanted into germ-free mothers at the pathogen-free satellite facility at the University of Tennessee, a member of the consortium. The development of the procedure is significant because of its large scale and because it allowed the consortium to qualify for $12.7 million from the National Institutes of Health. The strategies and procedure developed by the ORNL team also will ensure the efficient transfer of mouse stocks into the new pathogen-free mouse facility being built at ORNL. The current Mouse House is home to some 60,000 pedigreed mice.