Over the past 50 years, the average size of broiler houses has doubled to compensate for increased demand from retailers in the poultry industry. Year by year, commercial poultry farmers are expected to produce more meat to fulfill that demand, which necessitates the ability to care for more chickens.
This dramatic increase in production has made it more difficult for poultry farmers to actively monitor the welfare of their chickens. Modern poultry farms can house birds numbering in the tens of thousands -- in a setting like this, it’s hard, even for skilled farmers, to pay attention to the needs of any particular chicken.
Additionally, contract growers are often obligated to submit a detailed report on their welfare practices and outcomes to their integrators in order to keep their jobs. There’s a lot of pressure on farmers to do their absolute best to satisfy the industry and to take good care of their animals at the same time, which is a difficult balancing act to achieve.