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Jejunal Transcriptomic Profiling for Differences in Feed Conversion Ratio in Slow-Growing Chickens.

Panpradub Sinpru1, Cindy Riou1, Satoshi Kubota1

  • 1School of Animal Technology and Innovation, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand.

Animals : an Open Access Journal From MDPI
|September 28, 2021
PubMed
Summary
This summary is machine-generated.

Understanding the molecular basis of feed efficiency in chickens is key for the poultry industry. This study identified specific genes in the jejunum of low-feed conversion ratio (FCR) chickens related to metabolism and growth.

Keywords:
RNA sequencingdigestive tractfeed conversion ratiofeed efficiencyintestinejejunumpoultry productionslow-growing chickentranscriptome

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Area of Science:

  • Genomics and Poultry Science
  • Molecular Biology and Animal Physiology

Background:

  • Improving feed efficiency is a critical breeding objective in the poultry sector.
  • Understanding the underlying molecular mechanisms is essential for developing effective breeding strategies.

Purpose of the Study:

  • To investigate the jejunal transcriptome differences between low- and high-feed conversion ratio (FCR) slow-growing Korat chickens (KRs).
  • To identify molecular pathways associated with variations in feed efficiency in poultry.

Main Methods:

  • Comparative analysis of jejunal transcriptomes using RNA sequencing.
  • Selection of six 10-week-old male Korat chickens with extreme low (n=3) and high (n=3) FCR values.
  • Statistical analysis to identify differentially expressed genes (p < 0.01, FC > 2).

Main Results:

  • Identified 56 differentially expressed genes in the jejunum between low- and high-FCR groups (31 upregulated, 25 downregulated in low-FCR).
  • Enrichment analysis revealed involvement of immune response, glutathione metabolism, vitamin transport, lipid metabolism, and neuronal/cardiac development.
  • These pathways suggest key mechanisms influencing jejunal feed conversion efficiency.

Conclusions:

  • The study provides a molecular basis for feed efficiency in slow-growing chickens.
  • Identified genes and pathways offer targets for future breeding programs aimed at enhancing poultry feed efficiency.
  • Highlights the role of jejunal gene expression in nutrient utilization and growth performance.