This study was carried out in the Depresion Momposina located in the Atlantic Coast of Colombia, this region is the most overflooddirg of the country. Productive and reproductive parameters were estimated with the information taken from 571 animal records of different racial groups, with two finished lactations correspondent to four farms with dual-purpose production system, two of them in Tropical Dry Forest and the others in Tropical Humid Forest. Tropical Dry Fore st presented best rates for total milking production (891 kg/cow/279 days) and calving interval (423 days), all of this was related to milking production for effective year (771 kg) Zebu x European presented the highest milking yield (975 kg/cow in 298 days of lactation), following Zebu x Creole (782 kg/cow in 285 days of lactation) and Zebu (728 kg/cow in 274 days of lactation). The tendency for the crossbred for a high milk yield in relation to Zebu was kept in spite of higher calving interval for them (434,441 vs. 421). For that reason, higher milking production for effective year was obtained with Zebu x European (822 kg/cow), following Zebu x Creole (656 kg/cow), and Zebu (633 kg/cow).