Summary and Implications
The genetic components of reproductive performance and antibody response of 641 commercial sows were assessed in a commercial herd that faced a PRRS outbreak. Antibody response after the PRRS outbreak was highly heritable and had high genetic correlations with reproductive traits. Many genomic regions were associated with antibody response in this study. These results indicate that there is a significant genomic component associated with PRRS antibody response and its high genetic correlations with reproductive traits during PRRS suggest that this trait could be used as an indicator trait to reduce the impact of PRRS on reproductive performance.
Iowa State University
Serão, Nick V. L.; Matika, Oswald; Bishop, Steve; Kemp, Bob; Harding, John; Plastow, Graham; and Dekkers, Jack C. M.
"Genetic Analysis of Reproductive Traits and Antibody Response in PRRS Infected Sows,"
Animal Industry Report:
AS 660, ASL R2920.
Available at: http://lib.dr.iastate.edu/ans_air/vol660/iss1/85