The rapidly growing insect farming industry raises important welfare questions about the capacity of invertebrates to suffer and what conditions constitute adequate care.
The welfare status of farmed insects is genuinely uncertain: they possess nociceptors and respond to tissue damage, but the extent to which they have subjective experience of pain remains an open scientific question. Given this uncertainty, the precautionary principle supports applying basic welfare standards including minimising handling stress, maintaining appropriate thermal and humidity conditions, and using the most rapid available slaughter methods. Some jurisdictions including Switzerland now apply legal welfare requirements to specific insect species. The scale of insect farming, with billions of individuals per facility, makes even small welfare improvements potentially significant.