However you feel about livestocik and meat consumption, pig farming is big business world wide. Being omnivores, they can consume most kitchen scraps and in some situation are used to dispose of certain types of household waste. Since they can live on less expensive types of feed, they’re meat tends to cost less than beef.
As with any other type of animal husbandry, though, raising pigs for pork and other products may include some questionable activity. Treating animals humanely before harvesting for human use may cut into an operation’s profitability or create issues for the consumer, such as the prospective bacon shortage in California. —Bacon Could Disappear in California As New Welfare Rules Takes Effect: AP (businessinsider.com)