This is what factory farming is. There are no green hills with picket fences, it is intensive animal farming where pigs like this live their entire existence on a crowded, concrete-floored pen. They are nothing but machines on a production line. It is the dirtiest, cheapest way to maximise business and minimise the cost of agriculture all to fulfil the huge demand for meat. If you ever consider going vegan there are so many helpful websites like this or why not start doing a meatless day of the week. Reducing your meat consumption also has huge benefits for your health as many studies, such as The China Study and Harvard Nurse Study, link animal products to cancer, heart disease, osteoporosis and diabetes to name a few.