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Digestion dynamics in broilers fed rapeseed meal
E Recoules1, M Lessire2, V Labas3,4
1BOA, INRA, Université de Tours, 37380, Nouzilly, France. emilie.recoules@inra.fr.
Scientific Reports
|March 1, 2019
Summary
This study used proteomics to analyze rapeseed digestion in chickens, identifying proteins in the digestive tract. Results reveal how rapeseed proteins are processed and chicken enzymes contribute to digestion, offering insights into poultry nutrition.
Area of Science:
- Animal Science
- Proteomics
- Poultry Nutrition
Background:
- Rapeseed proteins exhibit poor digestibility in chickens, limiting their nutritional value.
- Understanding the molecular factors affecting rapeseed protein digestion is crucial for optimizing poultry feed.
Purpose of the Study:
- To investigate the proteomic profile of rapeseed proteins throughout the chicken digestive tract.
- To identify molecular mechanisms limiting rapeseed protein utilization in poultry.
Main Methods:
- Proteomic analysis of digestive contents (crop, proventriculus/gizzard, duodenum, jejunum, ileum).
- Identification of both rapeseed and chicken proteins at different digestive stages.
Main Results:
- The number of identified rapeseed proteins decreased along the digestive tract, with some solubilizing distally.
- Chicken proteases and peptidases were abundant in the jejunum and ileum.
- Duodenal contents showed proteolytic enzymes alongside proteins involved in various metabolic processes.
Conclusions:
- Integrative proteomics of the entire digestive tract provides a comprehensive view of protein digestion.
- Enzyme activity and pH changes influence rapeseed protein breakdown.
- This research aids in improving rapeseed by-product utilization in poultry diets.
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