The offered Pregnant Holstein Heifers are very suitable for use in various industries like milk and dairy. The behavior of cows and heifers after they have conceived is one of the best non-invasive means of determining pregnancy in cattle. Simply put, pregnant cattle will not (or should not) come into estrus or heat for the entire duration of the 9.34-month (285 days) gestation period. The offered Pregnant Holstein Heifers are very effective and easy to calm. They are very beautiful in appearance.