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Updated: Dec 23, 2025

Isolation of Preadipocytes from Broiler Chick Embryos
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Isolation of Preadipocytes from Broiler Chick Embryos

Published on: August 4, 2022

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Genes controlling polyunsaturated fatty acid synthesis are developmentally regulated in broiler chicks

R Mihelic1, H Winter1, J B Powers2,3

  • 1Department of Animal Science, University of Tennessee , Knoxville, TN, USA.

British Poultry Science
|April 23, 2020
PubMed

Insights

Polyunsaturated fatty acid (PUFA) synthesis pathways are actively regulated in broiler chickens. This study identified key genes influencing fat deposition and metabolism in developing adipose tissues.

Area of Science:

  • Animal Science
  • Biochemistry
  • Genetics

Background:

  • Long-chain polyunsaturated fatty acids (PUFA) are crucial for animal health and development.
  • Understanding PUFA synthesis regulation in broiler chickens is vital for optimizing meat quality and production.

Purpose of the Study:

  • To characterize the regulation of PUFA synthesis pathways in broiler embryos and chicks.
  • To investigate gene expression of key enzymes involved in PUFA synthesis across different adipose depots and developmental stages.

Main Methods:

  • Targeted RNA sequencing of elongase (ELOVL) and desaturase (SCD, FADS) genes.
  • Quantification of adipogenesis (PPARG) and fatty acid oxidation marker genes.
  • Gas chromatography-mass spectrometry (GC/MS) analysis of fatty acid composition.

Main Results:

  • Differential gene expression of PUFA synthesis pathway genes across developmental ages and adipose depots.
  • Identification of novel chicken elongase and desaturase genes.
  • Correlation analyses revealed relationships between co-regulated genes, fatty acids, and adipose metabolism.

Conclusions:

  • PUFA synthesis is a dynamic and actively regulated process in broiler adipose tissue.
  • Specific elongase and desaturase genes show potential novel roles in adipose deposition and metabolism.
  • These findings provide insights into the genetic control of fat composition in poultry.

Keywords:
Elongaseadiposebroiler chickdesaturaseomega-3 polyunsaturated fatty acid

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