The disposal of livestock mortalities on farms affects the welfare of surviving animals and the environment, with stockpiling of dead animals creating disease risk and psychological distress indicators in nearby livestock.
Livestock mortality disposal is a welfare variable that operates through its effects on surviving animals. Animals housed near decomposing conspecifics show behavioral stress indicators and disease exposure that represents a secondary welfare harm from a primary mortality event. Rapid, welfare-compatible disposal that removes mortalities and prevents accumulation maintains surviving animal welfare and provides early warning when mortality rates signal underlying welfare problems. High mortality rates requiring emergency disposal are themselves welfare emergencies warranting investigation.