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.
There are two types chambers of the heart, called the ventricles and the atria (singular is atrium). Each side of the heart has one ventricle and one atrium, and most people make a common mistake of assuming that the ventricles sit atop the atria. In fact the reverse is true. Each ventricle is located below an atrium.here are two types chambers of the heart, called the ventricles and the atria (singular is atrium). Each side of the heart has one ventricle and one atrium, and most people make a common mistake of assuming that the ventricles sit atop the atria. In fact the reverse is true. Each ventricle is located below an atrium.