Hanging, stunning, slaughter, halal slaughter, evisceration, processing - read about the processes at a chicken abattoir.
After boning the meat is processed further to meat products - read about curing, smoking and heat treatment
Traceability is important for food safety and for being able to document the quality of the meat towards the customers - read about labelling, CHR (Central Farm Animal Register) and traceability at the abattoir.
The slaughterhouses make efforts to save water and energy and to reduce the discharge of pollution and odour - see how the development has been for pig, cattle and chicken abattoirs.