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Phylogenetic Analysis of Porcine Circovirus 3 Circulating in Canadian Pigs

Abstract: Phylogenetic analysis of porcine circovirus 3 circulating in Canadian pigs

Introduction: Porcine circovirus 3 (PCV3) has been detected in pigs worldwide and associated with several clinical signs.
Methods: To investigate the genetic diversity of PCV3 strains circulating in Canada, 44 PCV3 positive samples from Saskatchewan (2/44), Manitoba (2/44), Quebec (4/44), Alberta (11/44) and Ontario (25/44) submitted to diagnostic laboratories in Canada between 2019 and 2021 were sequenced and analyzed.
Results: Phylogenetic analysis of capsid genes showed that all of the 44 Canadian strains classified into PCV3a and segregated into seven lineages with common amino acid changes observed at A24V, R27K, N56D, T77S, Q98R, L150I (F) and R168K positions.

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Research in Action | Swine Cluster 4 - Activity 8: Precision Feeding with Dr. Aline Remus

Video: Research in Action | Swine Cluster 4 - Activity 8: Precision Feeding with Dr. Aline Remus


Research in Action is a video series from Swine Innovation Porc that highlights the people and projects driving innovation in Canada's pork sector.

In this episode, Dr. Aline Remus (Agriculture and Agri-Food Canada) explains how precision feeding is helping producers improve efficiency, reduce feed costs and lower environmental impacts while supporting animal health and welfare.

As part of Swine Cluster 4 - Activity 8, this research is advancing precision livestock farming by tailoring nutrition to the needs of individual pigs or groups of pigs. The project aims to reduce feed costs, decrease greenhouse gas emissions and nutrient losses, and develop practical precision feeding systems that producers can confidently adopt on-farm.

By bringing together researchers from across Canada and around the world, this work is helping transform innovative research into practical solutions for a more sustainable and competitive Canadian pork sector.