Phylogenetic Analysis of Porcine Circovirus 3 Circulating in Canadian Pigs

Jun 24, 2022

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.

Click here to see more...

Video: Sow Reproduction in Free-Choice Barns - Dr. William Flowers

In this episode of The Swine it Podcast Show Canada, Dr. William Flowers from North Carolina State University explains sow reproductive performance and behaviors in free-choice gestation barns. He discusses social hierarchy, stress responses, feeding behavior, and the influence of housing design on fertility outcomes. Understand how sow interactions can affect production results and management decisions. Listen now on all major platforms!

“Overall, sows, even the dominant sows, choose to spend about 70% of their time in the stall portion.”

Meet the guest: Dr. William Flowers / william-flowers-998b348a is the William Neal Reynolds and Alumni Distinguished Professor of Animal Science at North Carolina State University. His teaching covers swine production and reproductive management, while his research focuses on improving fertility in swine. Dr. Flowers holds a B.S. in Animal Science from Virginia Tech and M.S. and Ph.D. degrees from the University of Missouri. Listen to The Swine it Podcast Show Canada with Dr. William Flowers on all major platforms.