Avian Digestive System

Introduction:

Hello everyone, Everyday we see many animals. We see flying animal also. What are they? They are the birds. We all know that their are animals with 1 chambered stomach or 4 chambered stomach. But, do you know an animal with 2 chambers in it's stomach.Yes there are animals with 2 chambers in its stomach. It is surprising that there are animals like that. Now, lets see, what it is.

Avian Digestive System

Avian:

• Animals which haves 2 chambers in its stomach is called as an avian.
• Example: Crows, ducks, and all birds.
• Birds will have different organs in its bodies.
• Birds will have beaks

Avian Digestive System:

Actually, birds do not have teeth, So how will they eat? That is the reason why birds eat food which does not need the process mastication. They will not chew the food, they will only swallow the food. So, we can say that birds will eat unmasticated food only. 

After they swallow the food, the food will be stored in the "crop". 

Then, the food will go the proventriculas (First chamber of the stomach). In the proventriculas, it will contain digestive juices which will help in breaking down the food. Gastric juices from the liver and pancreas will meet in the proventriculas.

 After, the food will enter into the gizzard (Second chamber in the stomach). The gizzard will grind the food. Sometimes, birds will swallow stones or rocks. The stones or rocks will be stored in the gizzard. 

Then, the food will go to the small intestine. The small intestine is the main of absorption in Avian digestive system. 

After that, it will go to the large intestine. It will absorb the maximum number of water and nutrients from the food. 

Birds do not have separate openings to excrete urine and faces. Instead, Uric acid from the kidneys is secreted into the large intestine and combined with waste from the digestive process. This waste will be excreted through an opening called as Cloaca.  

So, What are the two chambers in the stomach?

• Proventriculas
• Gizzard

Thank you!