What types of pig breeds are there? An introduction to common pig breed classifications

China is rich in pig breed resources. According to their origin, they can be divided into 3 major types: local breeds, developed breeds and introduced breeds. According to the lean meat content of the pig carcass, they can also be divided into fat-type, meat-fat-type and lean-meat-type breeds. Most local pig breeds belong to the fat type, most developed pig breeds belong to the meat-fat type, and most introduced pig breeds belong to the lean-meat type.