Alfalfa Medicago Sativa Animal Feed Alfalfa (medico sativa) is a perennial legume grown throughout the world. It is recognized as a premier forage because of its higher relative feed value. It is very high levels of crude protein content (15% â?? 23%) and exceptional roughage values making it an ideal feed for daily cattle. Additionally, alfalfa can be high in some required minerals such as calcium and phosphorous. The combinations of these factors of milk, as well as improve the health of dairy animals. All types are classes of forge-consuming livestock appreciate alfalfa, and perform well on it including beef cattle, sheep, goats and horses.