The following is the results of your search for muzzle.
Muzzle: Grain in the East is usually thrashed by the sheaves being spread out
on a floor, over which oxen and cattle are driven to and fro, till
the grain is trodden out. Moses ordained that the ox was not to be
muzzled while thrashing. It was to be allowed to eat both the grain
and the straw
(Deuteronomy 25:4)
