Neonatal immunity in cattle

Abstract

Neonatal mortality associated with infection by a variety of pathogens is a major problem in the cattle industry. The increased susceptibility of the newborn calf to disease is primarily associated with its immunologic status at birth. Management practices before and at the time of parturition represent major determinants in the survival capacity of the newborn ruminant. This article will review some of the main characteristics of the immune system of the newborn calf as well as possible strategies that are available for the prevention of neonatal morbidity and mortality.