Influência da temperatura ambiente sobre o hematócrito de vacas lactantes

Abstract

Sixteen mature lactating cows were used to evaluate the nutritive values of diets containing either raw or biologically treated sugar cane bagass. Blood, from ear veins, was collected directly into heparinized capillary tubes for determination of the hematocrit value. A high negative correlation (-0.97) was observed between mean hematocrit values and ambient temperature.