Gestation, calvian and lactation effect on the hematic and hepatic function of Holstein cows in tropical conditions. ; Efecto de la gestación, parto y lactancia en la función hemática y hepática de vacas Holstein en condiciones tropicales.

Specialized dairy cattle under tropical conditions present changes on physiology caused by environmental and handling aspects. These alterations of different functions affect the capacity to express genetic potential of production. The research was carried out at savanna of Bogotá, Colombia. Located at 2547 m above sea level, annual mean temperature 13 0C, relative humidity 80 % and annual precipitation685 mm. The study's main objective was to characterize the changes in hematic and hepatic functions of dairy cows during pregnancy, calving and lactation periods and under tropical highland cond... Mehr ...