Abstract
The aim of this research is to evaluate the influence of antibiotics in early development of gut microbiota, immune response and impact of diarrhea in newborn calves. For this purpose, 20 healthy Holstein calves will be used, divided in two groups with 10 animals each: group 1: will receive Florfenicol antibiotic (20mg/kg) at birth and group 2: will not receive antibiotics. Calves will be…