Swine

Effect of Porcine Reproductive and Respiratory Syndrome (PRRS) and Porcine Epidemic Diarrhea (PED) Outbreaks on Reproductive Performance in Commercial Sows

Authors: Nick V. L. Serão (Iowa State University) , Austin M. Putz (Iowa State University) , Cassie Scanlan (Iowa State University) , Kent Gray (Smithfield Premium Genetics)

Abstract

The objective of this study was to estimate the impact of the PRRS virus (PRRSV) and PED virus (PEDV) on the reproductive performance of commercial sows. Diseases (PRRS or PED) negatively impacted all traits, except for total piglets born. Heritability estimates for traits during Clean (without any disease), PRRS, and PED ranged from 0.01 (number of mummies; Clean and PED) to 0.41 (abortion; PED). Estimates of genetic correlations within trait, between disease statuses, ranged from -0.17 (number weaned between PRRS and PED) to 0.99 (abortion between Clean and PRRS). Results indicate that selection for improved performance during PRRS and PED in commercial sows is possible and would not negatively impact performance in Clean environments.

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How to Cite: Serão, N. V. , Putz, A. M. , Scanlan, C. & Gray, K. (2019) “Effect of Porcine Reproductive and Respiratory Syndrome (PRRS) and Porcine Epidemic Diarrhea (PED) Outbreaks on Reproductive Performance in Commercial Sows”, Iowa State University Animal Industry Report. 16(1).