![]() ![]() One major benefit of chilling is that it reduces mobility. Further research is needed to fully understand the effects of different chilling methods on crustacean welfare. However, this process is commonly considered to be effective, as crustaceans subjected to chilling do not show the behavioural signs of stress that occur when some other killing methods (such as boiling) are used. Scientific proof of the association between chilling and absence of discomfort, stress or pain is limited. They are rendered insensible when their body temperature is sufficiently reduced by chilling. ChillingĬrustaceans are cold-blooded animals and reportedly enter a state of torpor at air temperatures of 4☌ or below. Failure to adequately electrically stun may have serious welfare consequences, including a high rate of autotomy. Only purpose-built electrical stunning equipment (the Crustastun) should be used, in accordance with the manufacturer’s instructions. With sufficient electrical current, crustaceans can be rendered insensible within 1 second of current being applied – that is, an immediate loss of sensibility. Large crustaceans that are adapted to very cold temperaturesĬrustaceans must not be subjected to mechanical killing without first being rendered insensible using one of the following methods. ![]() Not recommended for temperate marine species that are adapted to colder temperatures MethodĪll tropical crustaceans and temperate species that are susceptible to cold temperaturesĪ saltwater ice slurry must be used for marine species However, further research is required before definitive conclusions can be drawn about the humaneness of stunning and killing methods for crustaceans. This advice is based on the available scientific evidence. ![]()
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