The Jersey is small sized, weighs about 360 to 540 kg, however, the breed is big economy-wise. Thanks to their light structure, they need less maintenance feed and are strong grazers. In addition they are very prolific and calve out extremely easily, which makes them very suitable for cross-breeding. But more than anything the Jersey is a superb fat producer. Contents of 6% fat and 4% protein are the rule rather than the exception. They supply the unique kind of milk that is being used in many a local produce.