In the beef cattle diet, common roughages include hay, silage and grass. Silage is a crop that has been preserved in a moist, succulent condition by partial fermentation in a tight container (silo) above or below ground. The majority of the food cattle eat comes from this type of feedstuffs.
Birds (some dinosaurs) and mammals have a four-chambered heart. The ventricle is divided by a septum into two compartments completely separating oxygenated from deoxygenated blood and delivering the maximum amount of oxygen to the head and body at the most efficient pressure.
Heart chambers and associated great vessels. The heart has four chambers â two superior atria and two inferior ventricles. The internal partition that divides the heart longitudinally is called the interatrial septum where it separates the atria, and the interventricular septum where is separates the ventricles.