The musculoskeletal system (see Introduction to the Biology of the Musculoskeletal System) includes the bones, muscles, ligaments, tendons, and joints, which support and move the body.
Lambing. Ewes generally lamb around 145 days after mating. Some of course will be earlier & some later, but 145 days is the norm. For a successful lambing, ewes need to receive good nutrition, particularly in the last month of pregnancy when the lamb will approximately double in size.
Lambs are Born. Sheep have their lambs in late winter or early spring as they also need to eat lots of fresh grass so that they can make milk for their lambs. The farmer will bring the ewe, or mother sheep, into a barn to give birth. They can have up to four lambs at a time but mostly have one or two.