ArticlePorcine health management2024
Candidate markers for enhanced host response to PRRS have scarce adverse effects on pigs' growth and production.
Article in Porcine health management, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Lectin-Based Antiviral Strategies for Porcine Reproductive and Respiratory Syndrome Virus 2 Infection: Griffithsin Suppresses Viral Replication In Vitro and Reduces Early Viremia In Vivo.Microorganisms · 2026Article
- Review
- Guanylate-binding protein 5: a promising biomarker and therapeutic target.Infection and immunity · 2025Review
- Selection for Resilience in Livestock Production Systems.International journal of molecular sciences · 2024Review
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Authors and funding
4 authors.
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Abstract
backgroundPorcine Reproductive and Respiratory Syndrome (PRRS) is one of the most challenging viral diseases that cause substantial economic losses in the pig industry worldwide. The clinical signs of PRRS depend on, among others, the immunomodulatory properties of the PRRS virus strain, farm health status, herd immunity, and host genetics. The high virulence and mutation rate of PRRS virus limit the efficacy of vaccination programs. In recent years, several candidate genetic markers associated with PRRS resilience have been identified, and selective breeding was suggested as an additional approach to control PRRS under field conditions. Even so, it is essential to investigate the effects of these genetic markers on pigs' productivity. Our study aimed to assess the association between seven previously reported candidate genetic markers for host response to PRRS (rs80800372 in GBP1, rs340943904 in GBP5, rs322187731 in GBP6, rs1107556229 in CD163, rs338508371 in SGK1, rs80928141 in TAP1, and a 275-bp insertion in the promoter of MX1) and production traits in pigs under non-challenging conditions.
resultsAbout 600 high-health Duroc pigs were genotyped for the selected genetic markers and their effects on production traits (live body weight, carcass weight, backfat thickness, intramuscular fat content and composition) were assessed using a linear model. The genetic markers GBP5_rs340943904, GBP6_rs322187731, CD163_rs1107556229, and the 275-bp insertion at the promoter of MX1 showed no relevant associations with growth and carcass traits at slaughter. Regarding GBP1_rs80800372 (WUR1000125), the favourable G allele for PRRS resilience displayed significant additive effects on backfat thickness (+ 1.18 ± 0.42 mm; p = 0.005) and lean content (-1.72 ± 0.56%; p ≤ 0.01) at slaughter. In addition, the genetic markers SGK1_rs338508371 and TAP1_rs8092814 were associated with the palmitoleic content in gluteus medius, without affecting the total of the monounsaturated fatty acids.
conclusionsOur results indicate that genetic markers for PRRS resilience have no relevant effects on growth and carcass traits in pigs reared under non-challenging conditions, except for GBP1_rs80800372 where the favourable allele for PRRS response has a negative impact on lean content. Therefore, since the effects of GBP1_rs80800372 were attributed to the causal variant GBP5_rs340943904, it seems beneficial to select pigs for the genetic marker at GBP5 instead of GBP1. Overall, pigs might be selected for enhanced PRRS resilience without compromising their overall productivity.
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