00646nam a2200193 a 450000100080000000500110000800800410001910000680006024500370012826001000016530000100026549000200027550000460029565000210034165000330036265000190039565000240041465000140043810327742016-11-15       1962    bl uuuu     u0uu1 u    #d1 aAGRICULTURAL EXTENSION SERVICE. VIRGINIA POLYTECHNIC INSTITUTE.  aBeef cattle performance testing.  aBlacksburg, Virginia, USA: Agricultural Extension Service; Virginia Polytechnic Institutec1962  a38 p.  a(Bulletin, 283)  aDonación familia Dr. Juan Carlos Scarsi.  aBOVINOS DE CARNE  aMEJORAMIENTO GENETICO ANIMAL  aPROCEDIMIENTOS  aREPRODUCCION ANIMAL  aSELECCION