(plus: no access to the outdoors; much larger-than-optimal social groups; separation from young/inability to raise young; handling & transportation to slaughter; problems arising from selective breeding for weight gain e.g. perpetual hunger, higher incidence of injuries like breast bone fractures)
Slaughter, probably.
(plus: no access to the outdoors; much larger-than-optimal social groups; separation from young/inability to raise young; handling & transportation to slaughter; problems arising from selective breeding for weight gain e.g. perpetual hunger, higher incidence of injuries like breast bone fractures)