There were 3 steers that died during the study (1
NAT and 2 CONV-Z) with necropsy indicating bloat
as the cause of death for all three steers. One of the
CONV-Z steers died before feeding ZH, while 1 died
during ZH feeding (d 11Z). Two steers were removed
from the trial for lameness (1 CONV and 1 NAT) and
were treated with an antibiotic. No animals required
antibiotic treatment for respiratory disease. At slaughter,
1 CONV-Z steer broke his leg in transport to the
slaughter facility and was euthanized, and 1 CONV
steer was rejected by the slaughter facility due to failure
to meet hide color specifications. This animal was