This study demonstrates that routine observational data on non-specific digestive disorders in a commercial line can be a useful indicator of resistance to disease, the trait appearing to have a significant genetic component. Genetic correlations between disease score, on the one hand, and 63-day body weight and carcass yield on the other hands were favourable, suggesting a possible introduction of the disease trait into the breeding objective without compromising the genetic gain for other traits of economic importance. An accurate estimation of the economic value of the trait is required and more work is needed to take into account the possible recursive relations between the disease trait and the production traits. This study provided also some new estimated genetic parameters among production traits using Bayesian and Gibbs sampling methodology.