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 heart is divided into four chambers, the left atrium and ventricle and the right atrium and ventricle. A wall called the septum divides the two sides of the heart. When blood returns to the heart from the body, it fills the right atrium.The tricuspid valve then opens, allowing blood to be pumped to the ventricle below. Then the ventricle contracts and pumps blood through the pulmonary valve to the lungs. The blood returns from the lungs and then fills the left atrium.he left ventricle then contracts and the aortic valve opens, allowing blood to travel through the aorta to blood vessels throughout your body. A problem with any of the heartâs four valves can compromise the ability of your heart to perform its vital role in blood circulation.