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.
FERTILITY is the possibility of reproducing. With adequate nutrition, sheep are fertile throughout the year. A healthy, well fed ewe can give birth up to 6 or more lambs in two years. Climate, diseases, environmental stresses, management and nutrition have an impact on fertility.