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Molecular approaches to the diagnosis and monitoring of production diseases in pigs

Giles, Timothy A.; Belkhiri, Aouatif; Barrow, Paul A.; Foster, Neil


Timothy A. Giles

Aouatif Belkhiri

Paul A. Barrow

Neil Foster


Production disease in pigs is caused by a variety of different pathogens, mainly enteric and respiratory and can result in significant economic loss. Other factors such as stress, poor husbandry and nutrition can also contribute to an animal's susceptibility to disease. Molecular biomarkers of production disease could be of immense value by improving diagnosis and risk analysis to determine best practice with an impact on increased economic output and animal welfare. In addition to the use of multiplex PCR or microarrays to detect individual or mixed pathogens during infection, these technologies can also be used to monitor the host response to infection via gene expression. The patterns of gene expression associated with cellular damage or initiation of the early immune response may indicate the type of pathology and, by extension the types of pathogen involved. Molecular methods can therefore be used to monitor both the presence of a pathogen and the host response to it during production disease. The field of biomarker discovery and implementation is expanding as technologies such as microarrays and next generation sequencing become more common. Whilst a large number of studies have been carried out in human medicine, further work is needed to identify molecular biomarkers in veterinary medicine and in particular those associated with production disease in the pig industry. The pig transcriptome is highly complex and still not fully understood. Further gene expression studies are needed to identify molecular biomarkers which may have predictive value in identifying the environmental, nutritional and other risk factors which are associated with production diseases in pigs.


Giles, T. A., Belkhiri, A., Barrow, P. A., & Foster, N. (2017). Molecular approaches to the diagnosis and monitoring of production diseases in pigs. Research in Veterinary Science, 114,

Journal Article Type Article
Acceptance Date May 12, 2017
Online Publication Date May 17, 2017
Publication Date Oct 1, 2017
Deposit Date Dec 12, 2017
Journal Research in Veterinary Science
Print ISSN 0034-5288
Electronic ISSN 1532-2661
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 114
Keywords Biomarkers; Pigs; Production disease; Molecular diagnostics
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