Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

What is Monogastric Digestion?01:50

What is Monogastric Digestion?

74.7K
The human body contains a monogastric digestive system. In a monogastric digestive system, the stomach only contains one chamber in which it digests food. Several other animal species also have monogastric digestive systems, including pigs, horses, dogs, and birds. This chapter, however, focuses on the human digestive system.
74.7K
Mechanical and Chemical Digestion in the Small Intestine01:30

Mechanical and Chemical Digestion in the Small Intestine

2.6K
The small intestine plays a crucial role in our digestive system, performing both mechanical and chemical digestion.
Mechanical digestion in the small intestine involves movements such as segmentations and migrating motility complexes (MMCs), primarily controlled by the myenteric plexus. Segmentations are localized contractions occurring in areas of the intestine distended by chyme—a mixture of partially digested food. These contractions mix chyme with digestive juices, facilitating...
2.6K
Anatomy of the Intestines01:23

Anatomy of the Intestines

86.3K
Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
86.3K
Microbial Nutrition01:28

Microbial Nutrition

913
Organisms exhibit remarkable metabolic diversity, categorized based on how they acquire energy and carbon. These strategies enable survival in various ecological niches and are essential for maintaining energy flow and nutrient cycling within ecosystems.Energy and Carbon SourcesOrganisms are classified as phototrophs or chemotrophs based on energy acquisition. Phototrophs use light as their energy source, while chemotrophs rely on oxidizing chemical compounds. Further differentiation arises...
913
Bacterial Flora of the Large Intestine01:29

Bacterial Flora of the Large Intestine

1.4K
The gut microbiome is formed by a vast and diverse community of bacteria that colonizes our large intestine. These bacteria start residing in the gut from birth and continue diversifying throughout life, influenced by factors such as diet, lifestyle, and stress. The gut bacterial community also includes bacteria from food and those that enter the colon through the anus.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
1.4K
Protein Digestion01:02

Protein Digestion

110.1K
Protein digestion begins in the stomach, where the highly acidic environment can easily disrupt protein structure by exposing the peptide bonds of polypeptide chains. After polypeptide chains are broken into individual amino acids by a series of digestive enzymes, the amino acids are transported to the liver via the bloodstream to produce energy.
110.1K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

PP-MAPS: Dynamic Pharmacophore Signatures of Protein-Peptide Interfaces from Molecular Dynamics Trajectories.

Journal of chemical information and modeling·2026
Same author

Interactions between gut commensal bacteria and polysaccharides derived from algae and legumes: identification of metabolites produced and pathways involved.

Current research in microbial sciences·2026
Same author

Leptin receptor gene influences pig gut microbiota both through feed intake and independently.

Animal microbiome·2025
Same author

A lactobacilli-based probiotic but not its postbiotic reduces intestinal inflammatory pathways expression in broilers fed a non-starch polysaccharide rich challenge diet.

Poultry science·2025
Same author

TGF-β and IL-12 conversely orchestrate the formation of CD103<sup>+</sup> CD8 tumor-resident memory T cells to regulate response to therapeutic cancer vaccine.

iScience·2025
Same author

Different tumour-resident memory T-cell subsets regulate responses to anti-PD-1 and anti-CTLA-4 cancer immunotherapies.

Nature communications·2025

Related Experiment Video

Updated: Dec 21, 2025

Author Spotlight: Advancing Intestinal Bacteria Cultivation for Poultry
04:36

Author Spotlight: Advancing Intestinal Bacteria Cultivation for Poultry

Published on: May 10, 2024

1.3K

Broilers divergently selected for digestibility differ for their digestive microbial ecosystems.

Marion Borey1, Jordi Estellé1, Aziza Caidi1

  • 1Université Paris-Saclay, INRAE, AgroParisTech, GABI, Jouy-en-Josas, France.

Plos One
|May 19, 2020
PubMed
Summary

Genetic selection for broiler chicken digestive efficiency impacts gut bacteria, particularly in the ceca. Efficient birds show distinct microbial compositions, potentially linked to nutrient metabolism.

More Related Videos

Compost Microcosms as Microbially Diverse, Natural-like Environments for Microbiome Research in Caenorhabditis elegans
07:19

Compost Microcosms as Microbially Diverse, Natural-like Environments for Microbiome Research in Caenorhabditis elegans

Published on: September 13, 2022

2.6K
Applying Advanced In Vitro Culturing Technology to Study the Human Gut Microbiota
06:23

Applying Advanced In Vitro Culturing Technology to Study the Human Gut Microbiota

Published on: February 15, 2019

14.7K

Related Experiment Videos

Last Updated: Dec 21, 2025

Author Spotlight: Advancing Intestinal Bacteria Cultivation for Poultry
04:36

Author Spotlight: Advancing Intestinal Bacteria Cultivation for Poultry

Published on: May 10, 2024

1.3K
Compost Microcosms as Microbially Diverse, Natural-like Environments for Microbiome Research in Caenorhabditis elegans
07:19

Compost Microcosms as Microbially Diverse, Natural-like Environments for Microbiome Research in Caenorhabditis elegans

Published on: September 13, 2022

2.6K
Applying Advanced In Vitro Culturing Technology to Study the Human Gut Microbiota
06:23

Applying Advanced In Vitro Culturing Technology to Study the Human Gut Microbiota

Published on: February 15, 2019

14.7K

Area of Science:

  • Animal Science
  • Microbiology
  • Genetics

Background:

  • Digestive efficiency in broiler chickens (Gallus gallus) is crucial for reducing waste and production costs.
  • Previous studies established that digestive efficiency is genetically controlled, leading to divergent lines (D+ and D-) with differing caecal microbiota.
  • Further investigation is needed to understand the comprehensive impact of genetic selection on the gut microbiome.

Purpose of the Study:

  • To extensively census the digestive microbiota in broiler chickens divergently selected for digestive efficiency.
  • To compare the composition and predicted functions of ileal, jejunal, and caecal microbiotas between high (AMEn+) and low (AMEn+) digestive efficiency birds.
  • To identify specific bacterial taxa and functional pathways influenced by genetic selection for digestive efficiency.

Main Methods:

  • Sequencing of 16S rRNA genes from ileal, jejunal, and caecal digesta of 39 broiler chickens (20 AMEn+, 19 AMEn-).
  • Bioinformatic analysis to compare microbial community composition and structure across intestinal segments and efficiency groups.
  • Functional prediction analysis of the caecal microbiota based on taxonomic composition.

Main Results:

  • Intestinal segment was the primary factor structuring the microbial communities.
  • The caecal microbiota showed the most significant differences, with 41 bacterial species varying in abundance between high and low digestive efficiency birds.
  • Predicted functions indicated enrichment in genes for short-chain fatty acid (SCFA) degradation from non-starch polysaccharides in efficient birds' caeca.

Conclusions:

  • Genetic selection for digestive efficiency significantly alters the taxonomic composition of the caecal microbiota in broiler chickens.
  • The caecal microbiota plays a key role in the host's digestive efficiency.
  • These findings pave the way for identifying host genes controlling microbial variations and improving broiler chicken production.