Pregnant ewes typically give birth within 145-155 days after breeding. During the final stages of pregnancy, ewes may exhibit signs of nesting behavior and may become more restless. Labor usually lasts about 6-12 hours, during which time the ewe will produce a lamb (or lambs) and a placenta. Lambs are typically born weighing between 5-8 pounds. After birth, it is important for the ewe to consume colostrum, a yellowish fluid produced by the mammary glands that is rich in antibodies and nutrients. Colostrum helps to protect lambs from disease and helps them to absorb vital nutrients. Once the colostrum has been consumed, the ewe will begin producing milk for her lambs.