About 10 years ago the DMRI introduced a new semiautomatic
system for CO2 stunning of pigs in groups. This is an example of an
automated solution that also improves the animal welfare because
the systemallows the pigs to move in groups which is in accordance
with their natural instinct. Itmakes the pigsmove smoothly and quietly
and yet fast enough to supply line speeds up to 830 pigs per hour