Carnival Corporation & plc, operator of Carnival and Princess Cruises, announced Monday a move to a crate-free pork supply.

"Carnival Corporation & plc supports the pork industry's movement away from gestation crates and will work to ensure that our own pork supply is free of these cages by 2022," said James Van Langen, Carnival Corporation & plc vice president of management systems, in a statement to the Humane Society of the United States.

The company operates 10 cruise lines with 100 total ships and is headquartered in Miami and London. With a net 2011 income of $1.9 billion and 91,000 worldwide employees, the company is the largest cruise line in the world, based on passengers carried.

Carnival Corporation

The lines accommodate approximately 4.4 million passengers annually.

The company joins Kroger, Target, Hillshire Brands and others in a move to crate-free sourcing.