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The Roman L. Hruska U.S. Meat Animal Research Center (MARC) is part of the U.S. Department of Agriculture's Agricultural Research Service. MARC was authorized by Congress on June 16, 1964, thereby creating a single facility that provides an unusual opportunity for making contributions to the solution of problems facing the U.S. livestock industry. The 35,000-acre facility and the otficelaboratory buildings provide a physical plant for about 80 scientists and about 200 support personnel. In addition, the University of Nebraska's Great Plains Veterinary Educational Center (GPVEC) provides a facility for four university faculty members, support personnel, and pre- and post-DVM students.
Approximately 50 percent of the research program is devoted to beef cattle, 30 percent to swine, and 20 percent to sheep. Current research program objectives require breeding age female populations of approximately 7,250 cattle (20 breeds), 4,250 sheep (10 breeds), and 700 crossbred swine litters to carry out the various experiments.