Kosher mammals _ those with cloven hooves and ruminant stomachs _ must be killed and blessed according to religious standards.
2.
There is some evidence from the University of Nottingham by professor J Neave that the contractions of the omasum can propel large particles backwards through the reticulorumen orifice, the junction connecting the omasum with the reticulorumen, into the reticulorumen, the first compartment of the ruminant stomach.