The liver is involved in several metabolic and homeostatic functions. This organ is responsible for the process of synthesis, metabolism, and detoxification. Therefore, the liver has endocrine and exocrine functions, being important to keep this organ in the best conditions to guarantee healthy birds.
The role of the liver is related to a wide number of functions, such as the metabolism of:
Additionally, it is implied in the:
During the fat metabolism, the liver provides lipids to be used in all tissues and the liver itself. However, in birds, fat synthesis is greater in the hepatic tissue and limited in the adipose tissue, which is different from mammals.
On the other hand, the liver is the source of bile that is essential in the emulsification of dietary fats, which is an important part of fat digestion and absorption.
Relatively little is known about biliary secretion in birds due to the complex anatomy in which bile enters the intestine via both hepato-enteric and the cystico-enteric ducts. Bile flow is stimulated by feed, presence of bile salts in the blood and cholecystokinin (CCK) secretio.
The liver is also involved in protein metabolism. Protein synthesis in the liver represents 11% of all protein synthesis in the bird.
Interview Dr. Nivin Nasser
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