Related Experiment Video
Updated: Aug 5, 2026

08:05
Guided Protocol for Fecal Microbial Characterization by 16S rRNA-Amplicon Sequencing
Published on: March 19, 2018
Next-Generation Sequencing in Companion Animal Practice for Infectious Disease Diagnostics and Characterizing Normal
1Department of Veterinary Biomedical Sciences, Shreiber School of Veterinary Medicine, Rowan University, South Harrison, NJ, USA.
Summary
This review compares next-generation sequencing methods for small animal veterinary diagnostics. It covers whole genome sequencing, amplicon sequencing, shotgun metagenomics, and transcriptomics for bacterial and microbiome analysis.
Area of Science:
- Veterinary Medicine
- Genomics
- Microbiome Research
Background:
- Next-generation sequencing (NGS) offers advanced tools for veterinary diagnostics.
- Understanding the gut microbiome is crucial for small animal health.
- Current diagnostic methods may not fully capture complex microbial profiles.
Purpose of the Study:
- To review and compare common and emergent NGS methodologies in small animal practice.
- To focus on applications in bacterial diagnostics and gut microbiome assessment.
- To aid practitioners in selecting appropriate molecular diagnostic tests.
Main Methods:
- Comparative review of whole genome sequencing (WGS).
- Analysis of amplicon sequencing techniques.
- Evaluation of shotgun metagenomic sequencing.
- Assessment of transcriptomics applications.
Main Results:
- Each NGS method presents unique advantages and limitations for veterinary diagnostics.
- WGS provides comprehensive genomic information.
- Amplicon sequencing is cost-effective for specific targets.
- Shotgun metagenomics offers broad microbial community insights.
- Transcriptomics reveals gene expression within microbial communities.
Conclusions:
- Informed selection of NGS methodologies enhances diagnostic accuracy in small animals.
- NGS techniques improve the assessment of bacterial infections and gut health.
- Integrating NGS into practice maximizes patient health assessment utility.
Related Concept Videos
Modern Molecular Taxonomy
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
Rapid Identification of Pathogens
MALDI-TOF MS has transformed clinical microbiology by offering a rapid and reliable method for pathogen identification. The traditional approach to microbial identification typically involves time-consuming culture techniques and biochemical tests, which can delay the initiation of appropriate antimicrobial therapy. MALDI-TOF MS avoids these delays by using characteristic ribosomal protein mass patterns of microbial cells, enabling accurate species-level identification within minutes.Principle...
Human Virome
The human body harbors a vast and diverse viral community known as the human virome. The virome includes bacteriophages that infect bacteria, and eukaryotic viruses that infect human cells. Transient dietary and environmental viruses also contribute to this dynamic ecosystem. Estimates suggest the human body may contain on the order of 10¹³ viral particles, though abundance varies widely by body site and detection method.Comprehensive characterization of the virome has become possible only with...
Next-generation Sequencing
The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features.
Automated Microbial Diagnostics
Automated diagnostic analyzers have transformed clinical microbiology by providing rapid and reliable methods for pathogen identification and antibiotic susceptibility testing. Among these systems, the Vitek 2 is widely used because it automates the traditionally labor-intensive processes of microbial identification (ID) and antibiotic susceptibility testing (AST), delivering standardized and timely results that are essential for effective patient care.Microbial Identification with ID CardsThe...
Introduction to the Human Microbiota
Microorganisms colonize various regions of the human body, including the mouth, nasal passages, throat, stomach, intestines, urogenital tract, and skin. The total number of microbial cells is estimated to range from 10¹³ to 10¹⁴—comparable to, or exceeding, the number of human somatic cells. This host–microbiome relationship has led to the conceptualization of humans as supraorganisms, wherein microbial communities perform vital roles in development, immunity, and disease...
