Update on sulfur-related polioencephalomalacia

Sulfur-related polioencephalomalacia is frequently associated with a high t otal sulfur intake by ruminants. The onset of clinical signs coincides with excessive ruminal sulfide production. Measurement of ruminal gas cap hydro gen sulfide makes it possible to identify cattle with potentially hazardous total sulfur intake. Evaluation of all potential sulfur sources is necessa ry to estimate total dietary sulfur concentration, which can lead to preven tion strategies.