Al­ter­na­tive to gas stun­ning Ho­gan tack­les ME mar­kets Ap­proval for slow grow­ing breeds JBS free to sell as­sets

The Poultry Bulletin - - CONTENTS -

An al­ter­na­tive method for stun­ning broil­ers has proved to be ef­fec­tive while still de­liv­er­ing wel­fare out­comes sim­i­lar to the most com­mon and hu­mane pro­cesses used in com­mer­cial pro­cess­ing plants.

Work­ing with other re­searchers in Scot­land and at the Uni­ver­sity of Arkansas, Jes­sica Martin of Ed­in­burgh Uni­ver­sity has been in­ves­ti­gat­ing the be­hav­iour and phys­i­ol­ogy of broil­ers sub­jected to Low At­mo­spheric Pres­sure Stun­ning (LAPS) as an al­ter­na­tive to Con­trolled At­mos­phere Stun­ning (CAS).

In Dr Martin’s ex­per­i­ments, birds showed a con­sis­tent pat­tern in be­hav­iour un­der LAPS, start­ing with re­duced co­or­di­na­tion and pro­gress­ing through loss of pos­ture and con­vul­sions to mo­tion­less­ness. All died within two min­utes of the LAPS treat­ment and were mo­tion­less one minute later.

LAPS in­volves the grad­ual de­com­pres­sion of at­mos­phere in the stun­ning cham­ber over four min­utes, while CAS sys­tems re­place oxy­gen with other gases to in­duce ir­re­versible stun­ning in birds. One of the ad­van­tages of LAPS is that it does not in­volve the need to con­tinue buy­ing gas.¡

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