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.
The septum in the heart is divided into two parts: the septum that separates the atria and the ventricular septum that divides the ventricles of the heart. The septum is made up of thick muscle tissue that starts at the lower end of the heart and passes up through the pulmonary artery and aorta.