The proposed project consists of three phases: 1 / identification and selection, 2/3 and evaluation / research and implementation. First of all, will be at the Belgian poultry slaughterhouses are collected by means of a visit, the following data on the spot: slaughter numbers per day, and -ritme, poultry types and method of anesthesia (including the technical parameters or mode of slaughter according to religious rite). Data is then processed and slaughterhouses selected for the participation in the second phase on the basis of a maximum diversity in slaughtering operations.