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Title: Increased microbiome diversity at the time of infection is associated with improved growth rates of pigs after co-infection with porcine reproductive and respiratory syndrome virus (PRRSV) and porcine circovirus type 2 (PCV2)

Journal Article · · Veterinary Microbiology
 [1];  [2];  [2];  [3];  [1];  [3]
  1. Kansas State Univ., Manhattan, KS (United States). Dept. of Diagnostic Medicine/Pathobiology and College of Veterinary Medicine
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Physical and Life Sciences Directorate
  3. Kansas State Univ., Manhattan, KS (United States). Dept. of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine and Kansas State Veterinary Diagnostic Lab.

Porcine reproductive and respiratory syndrome virus (PRRSV) and porcine circovirus type 2 (PCV2) are two of the most important pathogens affecting the swine industry worldwide. Co-infections are common on a global scale, resulting in pork production losses through reducing weight gain and causing respiratory disease in growing pigs. Our initial work demonstrated that the fecal microbiome was associated with clinical outcome of pigs 70 days post-infection (dpi) with PRRSV and PCV2. However, it remained uncertain if microbiome characteristics could predispose response to viral infection. The purpose of this study was to determine if microbiome characteristics present at the time of virus exposure were associated with outcome after co-infection. Using the Lawrence Livermore Microbial Detection Array, we profiled the microbiome in feces prior to infection from pigs identified retrospectively as having high or low growth rates after co-infection. High growth rate pigs had less severe interstitial pneumonia, reduced virus replication, and a significant increase in average daily weight gain throughout the study. At the level of the fecal microbiome, high growth rate pigs had increased microbial diversity on both a family and species level. Shifts in the microbiome composition of high growth rate pigs included reduced Methanobacteriaceae species, increased Ruminococcaceae species, and increased Streptococcaceae species when compared to low growth rate pigs. The results of the study indicate that both microbiome diversity and composition at the time of virus exposure may play a role in the subsequent response of pigs to PRRSV/PCV2 co-infection.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE; USDA; Kansas State Univ., Manhattan, KS (United States). National Bio and Agro-Defense Facility (NBAF)
Grant/Contract Number:
AC52-07NA27344; 2013-68004-20362; 14ERD081
OSTI ID:
1438602
Alternate ID(s):
OSTI ID: 1549709
Report Number(s):
LLNL-JRNL-736694
Journal Information:
Veterinary Microbiology, Vol. 208, Issue C; ISSN 0378-1135
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 24 works
Citation information provided by
Web of Science

References (42)

Low gut microbiota diversity in early infancy precedes asthma at school age journal May 2014
Monitoring Bacterial Community of Human Gut Microbiota Reveals an Increase in Lactobacillus in Obese Patients and Methanogens in Anorexic Patients journal September 2009
Role of the Gut Microbiome in Obesity and Diabetes Mellitus journal October 2015
Characterization of Swine Infertility and Respiratory Syndrome (SIRS) Virus (Isolate ATCC VR-2332) journal April 1992
Reduced diversity of the intestinal microbiota during infancy is associated with increased risk of allergic disease at school age journal September 2011
Evidence for a major QTL associated with host response to Porcine Reproductive and Respiratory Syndrome Virus challenge1 journal June 2012
Pathogenesis of porcine reproductive and respiratory syndrome virus journal June 2012
Identification of two auto-cleavage products of nonstructural protein 1 (nsp1) in porcine reproductive and respiratory syndrome virus infected cells: nsp1 function as interferon antagonist journal March 2010
House dust exposure mediates gut microbiome Lactobacillus enrichment and airway immune defense against allergens and virus infection journal December 2013
A microbial detection array (MDA) for viral and bacterial detection journal January 2010
Development of a real-time PCR method for Firmicutes and Bacteroidetes in faeces and its application to quantify intestinal population of obese and lean pigs journal November 2008
Modulation of innate immune signaling by nonstructural protein 1 (nsp1) in the family Arteriviridae journal December 2014
The microbiota in adaptive immune homeostasis and disease journal July 2016
Microbiota regulates immune defense against respiratory tract influenza A virus infection journal March 2011
Application of a pathogen microarray for the analysis of viruses and bacteria in clinical diagnostic samples from pigs journal April 2015
Estimates of animal methane emissions journal September 1996
Effects of the Antibiotics Growth Promoter Tylosin on Swine Gut Microbiota journal May 2016
Associations among Organochlorine Pesticides, Methanobacteriales, and Obesity in Korean Women journal November 2011
Human gut microbes associated with obesity journal December 2006
In-feed antibiotic effects on the swine intestinal microbiome journal January 2012
Obesity-associated gut microbiota is enriched in Lactobacillus reuteri and depleted in Bifidobacterium animalis and Methanobrevibacter smithii journal August 2011
Correlation between body mass index and gut concentrations of Lactobacillus reuteri, Bifidobacterium animalis, Methanobrevibacter smithii and Escherichia coli journal March 2013
Gut Mucosal Barrier Dysfunction, Microbial Dysbiosis, and Their Role in HIV-1 Disease Progression journal September 2016
Vaccination with a Porcine Reproductive and Respiratory Syndrome (PRRS) Modified Live Virus Vaccine Followed by Challenge with PRRS Virus and Porcine Circovirus Type 2 (PCV2) Protects against PRRS but Enhances PCV2 Replication and Pathogenesis Compared to Results for Nonvaccinated Cochallenged Controls journal October 2015
Microbiome associations in pigs with the best and worst clinical outcomes following co-infection with porcine reproductive and respiratory syndrome virus (PRRSV) and porcine circovirus type 2 (PCV2) journal May 2016
Current State of Knowledge on Porcine Circovirus Type 2-Associated Lesions journal June 2012
The effect of high-fat diet on the composition of the gut microbiota in cloned and non-cloned pigs of lean and obese phenotype journal September 2013
Changes in the gut microbiota of cloned and non-cloned control pigs during development of obesity: gut microbiota during development of obesity in cloned pigs journal January 2013
The Microbial Detection Array for Detection of Emerging Viruses in Clinical Samples - A Useful Panmicrobial Diagnostic Tool journal June 2014
Modulation of Systemic Immune Responses through Commensal Gastrointestinal Microbiota journal January 2013
Disease tolerance mediated by microbiome E. coli involves inflammasome and IGF-1 signaling journal October 2015
The gut microbiota plays a protective role in the host defence against pneumococcal pneumonia journal October 2015
Microbiota and SCFA in Lean and Overweight Healthy Subjects journal January 2010
Porcine circovirus type 2 (PCV2) infections: Clinical signs, pathology and laboratory diagnosis journal March 2012
Bacteria within the Gastrointestinal Tract Microbiota Correlated with Improved Growth and Feed Conversion: Challenges Presented for the Identification of Performance Enhancing Probiotic Bacteria journal February 2016
Antibody responses following vaccination versus infection in a porcine circovirus-type 2 (PCV2) disease model show distinct differences in virus neutralization and epitope recognition journal June 2012
Lung-gut cross-talk: evidence, mechanisms and implications for the mucosal inflammatory diseases journal March 2016
An obesity-associated gut microbiome with increased capacity for energy harvest journal December 2006
Microbial perspective on fiber utilization by swine. journal January 1997
Influence of dietary fiber on xylanolytic and cellulolytic bacteria of adult pigs. journal January 1987
Activity of Fiber-Degrading Microorganisms in the Pig Large Intestine journal August 1987
Human gut microbiota in obesity and after gastric bypass journal January 2009

Cited By (6)

Antimicrobial removal on piglets promotes health and higher bacterial diversity in the nasal microbiota journal April 2019
Comparative analysis of the fecal microbiota from different species of domesticated and wild suids journal September 2019
Impacts of environmental complexity on respiratory and gut microbiome community structure and diversity in growing pigs journal September 2019
Axiom Microbiome Array, the next generation microarray for high-throughput pathogen and microbiome analysis journal February 2019
Fecal Microbiota Transplantation Is Associated With Reduced Morbidity and Mortality in Porcine Circovirus Associated Disease journal July 2018
Change of Gut Microbiota in PRRSV-Resistant Pigs and PRRSV-Susceptible Pigs from Tongcheng Pigs and Large White Pigs Crossed Population upon PRRSV Infection journal June 2022