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.
The lamb should gain an average of .5 to .8 lbs. a day while you are feeding him. Knowing this, you can calculate what weight animal you need to buy and the number of days you will have to feed him to obtain the final weight from 110 to 140 lbs.or example, for heavy muscled black face lambs, market weight is usually around 125 lbs. At a minimum, the lamb will probably gain at least .50 to .75 lbs./d. If you bought a lamb that weighed 80 lbs. at 110 days before the show, the lamb would need to gain .40 lbs./d {(125 â 80) Ã· 110 = .409 lbs./d}.