It is a dairy cow breed originating from the Netherlands, renowned for its high milk yield and excellent milk quality. Cattle have a large body size and strong adaptability. Their fur color is usually black and white patches, with a few being red and white patches. The fat content of milk is usually between 3.5% and 4.5%, while the protein content is around 3.0%. Due to its excellent milk production performance, Holstein cattle have become one of the most important breeds in global dairy farming. Holstein cattle not only play an important role in dairy production, but their meat performance cannot be ignored. Due to its large size and well-developed muscles, Holstein beef is also popular in the market.