... (b), and WF (c) Discussion We have estimated genetic parameters for direct and associative effects using 2STEP, combining survival analysis and a linear animal model including associative effects ... used for line W1; 6,916 for line WB; and 3,588 for line WF Data analysis Data were analysed separately for each line Two methods to estimate genetic parameters were compared: 1) LAM, a linear animal ... (DSBV) Comparing genetic parameters of 2STEP and LAM is not straightforward For 2STEP, genetic parameters are given on the hazard rate scale, the probability that an animal has a failure at a given...