Intervention can save calves More than 50 percent of reported calf death losses are associated with calving: difficulty, or dystocia. With timely intervention, 70 percent of those calves might be saved.

摘要

A s calving approaches, a progression of events leads to the normal delivery of a calf. Approximately two weeks before the onset of labor, the dam's udder begins to fill. Her vulva starts to relax and enlarge. Sometimes a mucous discharge can be seen. The tailhead and vulvar area relax 12 to 24 hours before labor and about 12 hours before labor the cow becomes elusive and separates from the herd.