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Bile01:19

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Bile is a crucial bodily fluid, characterized by its yellow-green color and alkaline nature. Produced in the liver, it is transported through the common hepatic duct into either the cystic duct, leading to the gallbladder, or directly into the common bile duct. The flow of bile is regulated by the sphincter of Oddi located at the entrance of the duodenum. When this sphincter is closed, bile is redirected to the gallbladder for storage and concentration.
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Gallbladder01:17

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The gallbladder is a small, pear-shaped organ that plays a crucial role in our digestive system. Measuring about 10 cm in length, it is comparable in size to a kiwi fruit and is located in a hollow area on the lower surface of the liver. The gallbladder's primary function is to store and concentrate bile, a fluid produced by the liver that aids in digestion.
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Lipid Absorption01:24

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Dietary triglycerides from chyme in the duodenum are mixed with bile salts produced by the liver to emulsify fats. As a result, large droplets are broken down into smaller ones, increasing the surface area for enzymatic action. Once emulsified, pancreatic lipases hydrolyze the triglycerides into free fatty acids and monoglycerides.
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Diseases of the Liver and Gallbladder01:26

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Liver and gallbladder diseases are a significant health concern, with prominent conditions including cirrhosis, hepatitis, non-alcoholic fatty liver disease (NAFLD), and gallstones. Jaundice is a common manifestation of liver and biliary disease.
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Using Multi-fluorinated Bile Acids and In Vivo Magnetic Resonance Imaging to Measure Bile Acid Transport
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Composition of chicken gallbladder bile.

P Tancharoenrat1,2, F Zaefarian1, V Ravindran1

  • 1Monogastric Research Centre, School of Agriculture and Environment, Massey University, Palmerston North, New Zealand.

British Poultry Science
|February 21, 2022
PubMed
Summary

Chicken bile nutrient profiles reveal taurine as the primary amino acid, challenging previous assumptions. This study provides essential reference values for broiler chicken gallbladder bile composition.

Keywords:
Amino acidsbilebroilersfatty acidsgallbladderminerals

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Area of Science:

  • Animal Science
  • Biochemistry
  • Poultry Nutrition

Background:

  • Understanding the nutritional composition of broiler chicken bile is crucial for optimizing feed formulations and understanding metabolic processes.
  • Previous assumptions about the primary amino acid in chicken bile, specifically glycine, lacked comprehensive data.

Purpose of the Study:

  • To determine the proximate composition, amino acid, fatty acid, and mineral profiles of broiler chicken gallbladder bile.
  • To establish preliminary reference values for key nutrients in chicken bile.

Main Methods:

  • Analysis of proximate composition (dry matter, fat, protein, ash).
  • Gas chromatography for fatty acid profiling.
  • Amino acid analysis using ion-exchange chromatography.
  • Atomic absorption spectrophotometry for mineral analysis.

Main Results:

  • Chicken bile dry matter was 19.8 g/100 g, with fat (24.9 g/100 g DM), protein (23.0 g/100 g DM), and ash (6.6 g/100 g DM).
  • Taurine was identified as the dominant amino acid (62% of bile protein), not glycine.
  • Unsaturated fatty acids predominated, with oleic, linoleic, and arachidonic acids being the main unsaturated forms.

Conclusions:

  • This study provides the first reference values for nutrient composition in chicken gallbladder bile.
  • Taurine is the principal amino acid in chicken bile, necessitating a revision of previous assumptions.
  • The detailed fatty acid and mineral profiles offer insights into chicken bile's metabolic role.