Digestion: Digestion is physiological process by which the complex food molecules are broken down with the help of digestive enzymes into smaller and simpler ones, which then become ready for absorption and assimilation.
Digestive system: The digestive system is a one kind of system to digest food materials so that they can be absorbed and utilized in the metabolic process of the fish and to remove toxic particles of food substances. It includes digestive tract and digestive glands.
Digestive tract:
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Digestion of fish
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Digestive tract:
- Mouth
- Buccal cavity
- pharynx
- oesophagus
- Stomach - cardiac part & pyloric part
- pyloric caeca
- intestine
- rectum
- Anus
Digestive glands:
- liver
- pancreas
