Prebiotics and gut microbiota in chickens

Area of Science:

• Poultry Science
• Microbiology
• Animal Nutrition

Background:

• Prebiotics are non-digestible feed components metabolized by gut microbes, offering host health benefits.
• Fermentable oligosaccharides are key prebiotics in poultry, influencing gut health via nutrient provision, pathogen inhibition, and immune modulation.
• While prebiotics show promise, direct links between health gains and specific gut microbiota alterations in chickens are under-researched.

Purpose of the Study:

• To review the current understanding of chicken gastrointestinal microbiota.
• To synthesize recent findings on how prebiotics modulate gut microbiota and immune functions in poultry.
• To highlight the need for research connecting prebiotic-induced microbiota changes to poultry health and productivity.

Main Methods:

• Literature review of scientific publications on prebiotics, gut microbiota, and poultry health.
• Analysis of studies investigating mechanisms of prebiotic action in the chicken gut.
• Synthesis of evidence on the impact of prebiotics like fructooligosaccharides, inulin, and mannanoligosaccharides.

Main Results:

• Prebiotics influence poultry gut microbiota composition and function.
• Mechanisms include nutrient provision, pathogen exclusion, and immune system interaction.
• Established prebiotics like FOS and inulin show positive results; others like XOS are emerging.

Conclusions:

• Understanding prebiotic-dependent gut microbiota modulation is crucial for poultry health.
• Prebiotics offer a viable alternative to in-feed antibiotics in poultry production.
• Further research should focus on direct correlations between microbiota shifts and host benefits.