THE DIGESTIVE SYSTEM OF DOMESTIC FOWL (GALLUS GALLUS DOMESTICUS)

Functions of parts

Beak

• picks food

Oesophagus

• swallowing of food from the mouth to the crop

Crop

• stores and softens food

Proventriculus

• secretes digestive enzymes

Gizzard

• grinding or crushing food

Duodenum:

• digestion of fat and protein

Pancreas

• secretion of enzymes

Gall bladder

• stores and releases bile

Liver

• secretes bile

Ileum

• absorption of food

Caeca

• fermentation of food

Large intestine

• absorption of water

Cloaca

• excretion of uric acid and egestion

Adaptive features of the digestive system of fowl

• Short, strong Beak to pick food and for pecking/cracking seeds
• Muscular and inner ridged gizzard to grind grains
• Long coiled intestine for herbivorous digestion
• The crop is large and sac-like, and can also extend to store food
• The proventriculus has glands which secrete digestive enzymes
• Long and coiled small intestines for the absorption of digested food and nutrients
• Numerous Caeca provide a large surface area for the secretion of digestive enzymes

Follow to join the WhatsApp Channel

Telegram Channel