, Department of Animal Science, Cornell University, Ithaca, NY 14853, USA and Asociaci6n de Criadores Holstein-Friesian de Mexico, Queretaro, Mexico and Asociaci6n Colombiana de Holstein-Friesian, Bogota, Colombia

• Tropical Agriculture Volume 64 Number 1 - Research Papers
  Interaction of genotype and environment for breeding efficiency and milk production of Holsteins in Mexico and Colombia
  Abstract