Digestive System Of Poultry: Best 12 Interesting information

About Digestive System Of Poultry, The Digestive System Of Poultry includes the organs that break down food, extract nutrients and water, and eliminate wastes. The system has two parts: the digestive tract and the urinary tract.

The Digestive System Of Poultry starts with the mouth or beak of a bird. Chewing breaks up food into smaller pieces that can easily be swallowed. The esophagus is a long muscular tube that transports food from the mouth to the crop.

The crop holds food until it is ready to dig into the stomach. Food then moves into the gizzard, where muscles and stones grind it up. After digestion, food passes on to the small intestine, where nutrients are absorbed into the bloodstream, and waste products are sent to the large intestine for excretion.

How Does Work Digestive System Of Poultry?

When you eat, food is moved from the mouth through a muscular tube called the esophagus down to your stomach. There it will be squeezed into a small ball and moved into your intestines through peristalsis. Inside your intestines, the nutrients in your food will be absorbed into your bloodstream, and waste products will move out of your body.

The Alimentary Canal

The alimentary canal is the long muscular tube that carries food from your mouth to your stomach, colon, and rectum. Many muscles are involved in this process, including the esophagus, crop and gizzard, stomach, and small intestine. The alimentary canal starts at the mouth with a pair of lips called the beak or mandible. In many birds, these can be used to pluck seeds off plants or break apart food grains before they are swallowed.

Mouth Structure

The avian mouth is a muscular tube that can be opened to form the beak and closed to form the parson’s nose. Its upper end holds the two halves of the upper jaw, or maxilla and mandible, so food can be stored in a crop before it is swallowed. These parts are supported by bones that reinforce each other but connect only at their tips.

Salivary Glands

The top of the beak is called the gular fold, which contains two special glands that lubricate food and help protect it from the sharp edges of teeth. Some birds lose their gular folds and develop a groove in place of them. These birds cannot eat soft foods like corn or wheat and must resort to insects for their nutrition.


The Digestive System Of Poultry crop sits lower in your throat than the beak does. It is a part of a bird’s digestive system. In birds, the crop is a storage organ used to hold food until it is ready for swallowing. It is composed of muscles and lymph that filter out nutrients and water.

Digestive System Of Poultry


The gizzard, a similar organ to the stomach, grinds food into a coarse paste or chitinous chips. Birds use these in place of grinding stones found in mammals’ intestines. The gizzard also helps control how much you eat by adding minerals to your feed and absorbing any remaining fragments of grains or seeds that were not completely eaten.

Pharynx And Tongue

The pharynx is the tube that runs from the back of your mouth to your esophagus. It joins with your esophagus at a muscular ring called the soft palate, which can be closed by a muscle called the epiglottis. The tongue helps you manipulate food. It is also covered with small teeth-like projections that help break up food before swallowing.

Oesophagus, Crop, And Proventriculus

The esophagus is a muscular tube that carries food from the mouth to the proventriculus. This muscular organ is sometimes called the crop. It expands with food and helps grind it into smaller particles before it moves on to your gizzard or stomach.


The proventriculus is the pear-shaped part of the bird’s stomach. This organ is composed of bitter digestive juices and churns them into a chunky mix before vomiting it into a tube leading to the cloaca. This organ often continues deep into your digestive tract because it does not have a true stomach wall. Birds with this anatomy must swallow hard to allow their crops to reach back to the proventriculus, though sometimes they can pass food back through their esophagus instead.

The Small Intestine

The small intestine is the tube that takes up most of your digestive tract. In birds, it is usually divided into four parts: the duodenum, jejunum, ileum, and caeca. The duodenum is the middle section and contains papillae on its inner walls. These help you absorb nutrients. The caeca are small fingerlike projections that run along the walls of your bowels and store food for later use in your diet.


The villi are tiny fingerlike projections that grow along the walls of your small intestine. Although they look like little trees, they act like rows of teeth. Each villus is made up of many tiny fingerlike protrusions called microvilli. These play a major role in the absorption of nutrients because the cells lining their surfaces contain protein channels full of cationic amino acids.

The Jejunum And The Ileum

The jejunum and ileum are the two main sections of your small intestine. The jejunum is the first section, and it’s short by comparison. The villi are mostly found here, where you absorb most of the nutrients in your food. The ileum is where most absorption takes place because there are fewer villi.

The Large Intestine

The large intestine is a tube near the rectum that takes up most of your digestive tract. The cecum is a small pouch on the left side of your large intestine. The colon is the main section and is mostly made of muscle. This organ houses many glands similar to an animal’s liver to filter waste products from your blood.


The duodenum is the first part of your small intestine. Several major organs are affected by the hormones released here. The hormones also help to regulate how you absorb nutrients, which are key to regulating your body’s fat and amino acid levels.

Large Intestine

The large intestine is a long yet narrow organ that makes up most of your digestive tract. It wraps around the small intestine and extends down to the end of your reproductive tract in females and the beginning of your urinary system in males.


The cloaca is an egg-shaped organ that is a common exit for reproduction and waste. Cloacae come from the Latin word for sewer because this area channels both kinds of fluids that leave the body at once.


The caeca are fingerlike projections that run along the walls of your large intestine. This help breaks down grains and grasses that are difficult to digest. They also store food for later use in your diet.

The Liver

The liver is one of the most important organs in your body. It has many functions, such as printing bile, preparing chemicals for digestion, and storing iron to keep a healthy red blood cell count. Many organs that are not vital to life can be removed, but removing the liver causes death.

The Gall Bladder

The gallbladder is a small organ that attaches under your liver and stores bile until you chow down on some food. After the gallbladder contracts, it pumps bile into your intestines to help digest whatever you are eating. If your bowels receive too much bile, it can cause diarrhea.

Blood Supply And Drainage

The circulatory system contains vessels that carry oxygenated blood from the lungs to all the parts of your body. The blood absorbs waste products, such as carbon dioxide and ammonia, then carries them back to the liver and spleen to be expelled via urine and feces.

The Spleen

The spleen is a small organ that takes up less than a quarter of your total body weight, but it makes up for its lack of size by being extremely important. The spleen produces special blood cells called neutrophils.


The liver is the main organ that produces bile. It also stores this substance in a small pouch. When you eat food, the liver releases bile into the intestines to help make it easier to digest.


The kidneys are two bean-shaped organs located below your rib cage on either side of your abdomen. They filter blood by absorbing waste and toxins from metabolism, then return this liquid to your blood. The urine that remains is passed out as urine through your urethra when you urinate.


The pancreas is an elongated organ that resembles a tree with lobes. Many of its functions are related to digestion and storage of sugar, but it also produces hormones that help regulate your blood sugar levels.

Interesting Information About Digestive System Of Poultry

1. The crop stores food for the chicken until it can be sent back to the gizzard. Without a crop, a chicken could not eat.

Digestive System Of Poultry

2. The proventriculus is where the chicken digests food and breaks it down into smaller particles. The muscles of the proventriculus contract to break down food, then pass its contents along to the gizzard for further digestion. The muscles of the proventriculus are also essential while pecking at seeds or other objects that need to be first broken down before being swallowed.

3. The gizzard is a muscular structure with small stones to grind food. Around the gizzard are lots of little teeth-like projections called gastroliths. These tiny rocks help break down tough objects like seeds and nuts, which keep the bird alive during times of famine.

4. The chicken’s intestines play an important role in the digestion of food because they are where the process of absorption takes place. Small particles of food that come out of your mouth are surrounded by digestive juices and passed along to your intestines, where they reach their final destination – the inside of your body.

5. Without a gizzard, a chicken could not eat since it is essential for grinding up seeds and other objects that need to be crushed for them to be digested.

6. The small intestine is an organ that functions like a storage depot or sewer. It stores and absorbs the nutrients from food, then releases the waste products, such as undigested food and feces, out of the body.

7. The liver is considered to be your body’s chemical factory. If you could see a cross-section of it, you would notice a wide range of colors. These colors are signs of all the chemicals it produces for digestion and other hormone-producing activities.

8. Without a liver, your body would be unable to function properly because it is essential for producing many important chemicals, such as bile and other enzymes.

9. The gallbladder helps the liver break down fats by mixing bile with fats. Without a gallbladder, you would be unable to eat fatty foods.

10. The ureters are pipes that carry urine from the kidneys out of the body. They are sometimes referred to as your chicken’s “kidneys.” Without them, you would not be able to produce urine.

11. The kidneys are very important in keeping the body healthy because they help make and control the fluid levels in your bloodstream. If these levels become too low, your body will start to suffer from dehydration, which can lead to the death of organs like the brain and heart.

12. The liver is not only an important chemical factory for blood but also a major organ of digestion and metabolism within the body.

Digestive System Of Poultry

Does Poultry Have A Gallbladder?

The gallbladder is a small organ located next to your liver in the upper right part of your belly. It contains bile, a thick yellow liquid that helps digest fats.

What Is The Digestive System Of Poultry?

It is responsible for breaking down the food and converting it into energy. The digestive system also removes poisons and bad odors from the digestive juices and sends them to the excretory system.


Poultry has a different Digestive System Of Poultry that converts food to energy, breaks down food, and removes bad odors. Now you know the difference between different types of digestive systems along with the digestive system of Poultry. I hope you enjoyed reading this article and learned something new. Comment below if you have any questions or concerns. Thanks for reading.