There are two categories of miniature cattle, full miniature and mid size miniature. If a particular animal is between 42.0" and 48.0" at three years of age it is considered a mid size miniature. It needs to be mentioned that cattle that are between 42.0" and 48.0" at three years are very small compared to standard size large cattle. Now if an animal at three years of age is 42.0" and under it would be considered a full miniature. Some of the breeds are consistently in the full miniature range while others are more consistently mid size. Most of the breeds have animals in both mid and full miniature height ranges.