Snail farming (heliciculture) is a growing industry worldwide, yet the welfare of farmed gastropods receives almost no scientific or regulatory attention despite emerging evidence that mollusks may experience nociception.
The welfare status of farmed snails sits at an unresolved frontier of animal sentience research. While snails lack a centralized brain resembling vertebrates, they possess neural ganglia that process nociceptive signals and regulate learned avoidance behaviors. Farming practices including overcrowding, inadequate humidity and temperature control, starvation periods before slaughter, and inhumane killing methods may cause significant suffering if snails have any capacity for negative experience. The precautionary principle suggests that given uncertainty about snail sentience, farming systems should incorporate welfare considerations such as appropriate humidity, substrate, social density, and more humane slaughter methods pending further research.