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Composite breeds to use heterosis and breed differences to improve efficiency of breef production : in cooperation with the Institute of Agriculture and Natural Resources, University of Nebraska-Lincoln K.E. Gregory, L.V. Cundiff, and R.M. Koch
Por: Gregory, K.E
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Colaborador(es): Koch, R.M
| Cundiff, L.V
| USDA Agricultural Research Service
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Tipo de material: 
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