Comparison of Carbohydrate and Fat Metabolism in Poultry and Mammalian Liver
Journal Title: Mehmet Akif Ersoy Üniversitesi Sağlık Bilimleri Enstitüsü Dergisi - Year 2018, Vol 6, Issue 1
Abstract
Liver is a complex organ located under the diaphragm in the right upper of abdomen together with gallbladder and bile duct and is essential for life. Liver delivers the absorbed nutrition from digestive system for utilization of other body compartments or passes them to the bloodstream after processing. Therefore, it creates a transition zone between digestive tract and blood. Blood carrying the nutrition from digestive tract is transmitted to hepatocytes through sinusoid walls after carried to sinusoids. Products obtained from hepatocyte processing are sent to duodenum as exocrine secretion (bile) via bile ducts or back to sinusoids again as endocrine secretion (proteins, lipids..) and from there they are sent to associated body parts by bloodstream. Liver has important functions in carbohydrate and lipid metabolism. Though poultry and mammalians share similarity of carbohydrate and fat metabolism, there are differences in metabolism pathways, hormonal response, enzyme regulation and factors effecting metabolism. For example, poultry have higher fasting blood sugar levels than mammalians due to their weak insulin sensitivity. Important differences of enzyme activities in carbohydrate and lipid metabolism occur in incubation period of chicks and in transition period from fetal to neonatal life of mammalians. Besides, mammalians need maternal energy sources in order to develop in intrauterine life and to meet metabolic demands. Since poultry develop independently from their mother, no maternal support is needed. This circumstance leads to arise of metabolic differences between poultry and mammalians before they connect with the external world
Authors and Affiliations
Füsun Erhan, Levent Ergün
Keywords
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- EP ID EP428052
- DOI 10.24998/maeusabed.356417
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