How fallen livestock are managed has both environmental and welfare implications. Composting systems offer welfare-neutral disposal while raising questions about farm welfare monitoring and mortality benchmarking.
Livestock mortality composting intersects with welfare through what mortality rates reveal about farm conditions. The mortality rate of a flock or herd reflects the cumulative outcome of health management, nutrition, housing, and welfare practices over time. High mortality is both a welfare problem in itself — individual animals dying is often preceded by suffering — and an indicator of welfare deficiencies that are likely causing non-fatal welfare harm across the broader population. Benchmarking mortality rates through farm assurance data collection creates accountability for farms with persistently high mortality and supports identification of management improvements that reduce both animal suffering and economic loss. The welfare and economic cases for mortality reduction are aligned: every preventable death represents both animal suffering and lost production value.