Which breed of swine is commercially important and is characterized by being black with a white belt and erect ears?

The breed of swine known for its commercial importance and distinct appearance of being black with a white belt and having erect ears is the Hampshire breed. This breed is recognized for its superior meat quality, rapid growth rate, and ability to produce a high-quality carcass, making it economically significant in the pork industry.

Hampshires are particularly valued for their flavor and leanness, which have contributed to their popularity among producers looking to meet consumer demand for high-quality pork. Their distinct coloration and ear shape also make them easily identifiable within the swine industry, further solidifying their status and recognition among various breeds.

In contrast, Yorkshire is known for its white color and excellent maternal qualities but does not possess the belt characteristic. Duroc swine are typically reddish-brown and have drooping ears, focusing on growth and quality but lacking the described features. Landrace breeds are white with large, floppy ears and are renowned for their reproductive performance but also do not match the Hampshire's description.