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.

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Video: Screening Nursery Ingredients - Kynna Crawford

In this episode of The Swine Nutrition Blackbelt Podcast, Kynna Crawford, Graduate Research Assistant at South Dakota State University, discusses how Plackett-Burman designs can help screen nursery diet ingredients for early post-weaning feed intake. She explains why low intake after weaning contributes to stress and mortality, how screening trials can evaluate multiple ingredients in a single study, and how the approach can support both research and commercial nursery nutrition decisions. Listen now on all major platforms!

Click here to read the full research article: https://academic.oup.com/jas/article/...

"A single screening trial can help identify which nursery ingredients deserve deeper research for early post-weaning feed intake."

Meet the guest: Kynna Crawford / kynna-crawford-a2610a3aa is a Master's student in Animal Sciences at South Dakota State University, where her work focuses on swine nutrition and nursery pig management. Her research examines strategies to alleviate weaning stress, including dietary approaches and screening tools to identify ingredients that may promote early feed intake. Learn more from Kynna Crawford on The Swine Nutrition Blackbelt Podcast, available on all major platforms.