The 3 Step Trick that Reverses Diabetes Permanently in As Little as 11 Days. Humans also have this type of digestive system. These animals have one stomach broken into digestive system of rabbit pdf compartments.
Due to the differences in the digestive systems, cattle can utilize different types of feeds than pigs. Cattle and sheep can live on hay and pasture, while pigs must eat grains that can be digested more easily. Digestion is the break-down of food occurring along the digestive tract. The digestive tract may be thought of as a long tube through which food passes. As food passes through the digestive tract, it is broken down into smaller and smaller units. These small units of food are absorbed as nutrients or pass out of the body as urine and feces. The following discussion explains how each part digests nutrients.
The teeth chew and grind food into smaller pieces. The esophagus is a tube which carries the food from the mouth to the stomach. A series of muscle contractions push the food toward the stomach. Swallowing is the first of these contractions. It is a reaction chamber where chemicals are added to the food. Certain cells along the stomach wall secrete hydrochloric acid and enzymes.
Some particles are absorbed from the stomach into the bloodstream. The cells along the small intestine’s wall produce enzymes that aid digestion and absorb digested foods. Secretions from the liver are stored in the gall bladder and pass into the intestine through the bile duct. These bile secretions aid in the digestion of fats.
Digestive juices from the pancreas pass through the pancreatic duct into the small intestine. These secretions contain enzymes that are vital to the digestion of fats, carbohydrates, and proteins. In most animals, the cecum has little function. However in animals such as the horse and rabbit, the cecum is very important in the digestion of fibrous feeds. The last major part of the digestive tract, the large intestine, is shorter, but larger in diameter than the small intestine.
Its main function is the absorption of water. The large intestine is a reservoir for waste materials that make up the feces. Some digestion takes place in the large intestine. Mucous is added to the remaining food in the large intestine, which acts as a lubricant to make passage easier. Muscle contractions push food through the intestines.
Food that enters the mouth and is not digested or absorbed as it passes down the digestive tract is excreted through the anus as feces. This was a general discussion of the digestive tract of the pig. The tract acts to digest and absorb nutrients necessary for maintenance of cells and growth. Efficient absorption of nutrients depends on each segment of the digestive system functioning to its maximum capacity. Figure 6 gives a summary of the digestive system of the pig. You may wish to test your knowledge by identifying the parts in Figure 7. Test your knowledge by identifying the parts.