Using PRRSV-Resilient Sows Improve Performance in Endemic Infected Farms with Recurrent Outbreaks
Open Access
- 8 March 2021
- Vol. 11 (3), 740
- https://doi.org/10.3390/ani11030740
Abstract
The selection of porcine reproductive and respiratory syndrome (PRRS) resilient sows has been proposed as a strategy to control this disease. A discrete event-based simulation model was developed to mimic the outcome of farms with resilient or susceptible sows suffering recurrent PRRSV outbreaks. Records of both phenotypes were registered in a PRRSV-positive farm of 1500 sows during three years. The information was split in the whole period of observation to include a PRRSV outbreak that lasted 24 weeks (endemic/epidemic or En/Ep) or only the endemic phase (En). Twenty simulations were modeled for each farm: Resilient/En, Resilient/En_Ep, Susceptible/En, and Susceptible/En_Ep during twelve years and analyzed for the productive performance and economic outcome, using reference values. The reproductive parameters were generally better for resilient than for susceptible sows in the PRRSV En/Ep scenario, and the contrary was observed in the endemic case. The piglet production cost was always lower for resilient than for susceptible sows but showed only significant differences in the PRRSV En/Ep scenario. Finally, the annual gross margin by sow is significantly better for resilient than for susceptible sows for the PRRSV endemic (12%) and endemic/epidemic scenarios (17%). Thus, the selection of PRRSV resilient sows is a profitable approach for producers to improve disease control.Keywords
Funding Information
- FEDER project (COMRDI16-1-0035-03)
This publication has 29 references indexed in Scilit:
- Identification of resilient sows in porcine reproductive and respiratory syndrome virus–infected farms1Journal of Animal Science, 2019
- Key Gaps in the Knowledge of the Porcine Respiratory Reproductive Syndrome Virus (PRRSV)Frontiers in Veterinary Science, 2019
- Novel insights into host responses and reproductive pathophysiology of porcine reproductive and respiratory syndrome caused by PRRSV-2Veterinary Microbiology, 2017
- Genetic resistance - an alternative for controlling PRRS?Porcine Health Management, 2016
- Comparison of host genetic factors influencing pig response to infection with two North American isolates of porcine reproductive and respiratory syndrome virusGenetics Selection Evolution, 2016
- A WUR SNP is associated with European Porcine Reproductive and Respiratory Virus Syndrome resistance and growth performance in pigsResearch in Veterinary Science, 2015
- Genetic analysis of reproductive traits and antibody response in a PRRS outbreak herd1Journal of Animal Science, 2014
- Variation among sows in response to porcine reproductive and respiratory syndrome1Journal of Animal Science, 2014
- Porcine reproductive and respiratory syndrome virus: An update on an emerging and re-emerging viral disease of swineVirus Research, 2010
- Genetic parameters for performance traits in commercial sows estimated before and after an outbreak of porcine reproductive and respiratory syndrome1Journal of Animal Science, 2009