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Heat detection represents a limiting factor for reproductive performance in dairy cattle. To characterize this problem in Costa Rica, a study on 72 dairy herds was carried out. All lactations recorded from July 1st, 1994 to June 30th, 2004 in the VAMPP Bovino information system, were used as data....

Alvarado Rodríguez, K.; Romero Zúñiga, J. J.; Valverde Altamirano, É.
Escuela de Medicina Veterinaria, Universidad Nacional, Heredia, Costa Rica
Ciencias Veterinarias (Heredia), 2006, 24, 2, pp 167-184