Feedlot Capacity And Long-Term Profitability

If we can agree that feedlot one-time capacity is probably over 16 million head, then what is the demand for cattle for a year? How many turns of cattle will feedlots make in a year? If the industry is moving towards heavier placement weights and therefore fewer days on feed, then what is the annual feeding capacity? If cattle are only fed for 120 days, then feedlots could feed three sets of cattle for a year. If the average number of days on feed were 150, then feedlots could feed about 2.4 sets of cattle.