Shrimp processing after harvest involves welfare considerations that extend from harvest through slaughter and processing. Evidence-based improvements reduce potential suffering.
Shrimp post-harvest welfare involves the period from pond harvest through slaughter and processing. The harvest itself - rapidly draining ponds as shrimp concentrate in progressively shallower water - creates crowding and hypoxic stress before collection. Transport to processing facilities prolongs this stress period. Common slaughter methods including live peeling (removing the shell from living animals) and dropping into boiling water are likely to involve significant nociceptive stimulation if shrimp have any capacity for pain experience. The UK's recognition of decapod crustaceans as sentient under the Animal Welfare (Sentience) Act 2022 provides regulatory momentum for improving these practices. Ice slurry immersion before processing reduces temperature and may reduce stress, while CO2 stunning could provide rapid insensibility before killing.