What is the primary source of meat labeled as beef?

The primary source of meat labeled as beef comes from cows, specifically from domesticated cattle. Cows are raised in various environments around the world primarily for their meat, which is a staple protein source in many diets. The term "beef" specifically refers to the meat derived from the species Bos taurus. This meat can come from different cuts and is known for its flavor, tenderness, and versatility in various culinary applications.

Other animals listed, such as chickens, sheep, and pigs, produce different types of meat: chickens provide poultry, sheep are a source of lamb or mutton depending on age, and pigs offer pork. Each type of meat has its unique characteristics, cultural significance, and uses in cuisine, but only meat from cows qualifies as beef.