Which of the following is NOT a recognized breed of swine?

The correct response identifies Peking as not being a recognized breed of swine. The Peking name is primarily associated with a breed of duck, specifically known for its meat production. In contrast, Duroc, Yorkshire, and Hampshire are all well-established and recognized breeds of pigs within livestock production.

Duroc pigs are known for their reddish color and muscular build, making them popular for their quality meat. Yorkshire pigs, distinguished by their white color and erect ears, are known for their excellent reproductive capabilities and efficiency in pork production. Hampshire pigs, recognizable by their black body and white belt, are valued for their meat quality and ability to produce lean pork.

Understanding the distinct breeding classifications helps clarify why Peking does not fit into the category of swine breeds, as its reference pertains to a different type of livestock altogether.