Urea (ammonia) toxicosis in cattle

Abstract

A review on the nature of urea ammonia toxicosis in cattle including results from studies on cattle losses under field conditions and from experimental work. It is concluded that toxic amounts of urea for cattle are 0.3-0.5 g/kg body weight. However, it is stressed that, although it can produce toxicosis, ammonia is a specific, essential metabolite in the degradation and synthesis of proteins.