Intensive farming is a big part of it. Chicken meat used to be fairly expensive until after WWII, when the Americans invented factory farming. Mechanisation is

Intensive farming is a big part of it. Chicken meat used to be fairly expensive until after WWII, when the Americans invented factory farming. Mechanisation is the other side of the equation. We require less workers per hectare for agriculture and horticulture, it's been going down steadily since the industrial revolution. At the same time, intensive farming techniques have been developed. Chicken used to be a fairly expensive meat until after WWII when the Americans invented factory farming.