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Of all the common breeds of dairy cattle, the milk of the Jersey boasts the highest milk fat content. This high fat content means the milk is often used for making ice cream and cheeses. According to the American Jersey Cattle Association, Jerseys are found on 20 percent of all US dairy farms and are the primary breed on about 4 percent of dairies.

High in Protein and Fat

According to North Dakota State University, the fat content of the Jersey cow is nearly 5 percent -- 4.9 percent, to be exact. It's also the highest in protein, at 3.8 percent. The milk fat content of the Holstein, the most common dairy cow, is 3.7 percent, with a 3.2 percent protein level. The Jersey's closest competitor in milk fat content is the Guernsey, with 4.7 percent and 3.6 percent protein content. The relatively rare brown Swiss produces a fat content of 4.1 percent, and a protein content of 3.5 percent. The milk of the Ayrshire, another uncommon breed, has a fat content of 4 percent and a protein content of 3.3 percent.

Author

Jane Meggitt has been a writer for more than 20 years. In addition to reporting for a major newspaper chain, she has been published in "Horse News," "Suburban Classic," "Hoof Beats," "Equine Journal" and other publications. She has a Bachelor of Arts in English from New York University and an Associate of Arts from the American Academy of Dramatics Arts, New York City.

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Of all the common breeds of dairy cattle, the milk of the Jersey boasts the highest milk fat content. This high fat content means the milk is often used for making ice cream and cheeses. According to the American Jersey Cattle Association, Jerseys are found on 20 percent of all US dairy farms and are the primary breed ...