"Comparison of single-trait and bitrait models for the genetic evaluation of two reproductive variables in meat rabbits."

Abstract

The mixed models constitute the most used statistical tool for predicting the genetic values of animals. In these evaluations you can use models that analyze one character at a time or several simultaneously.In this work, the consequences in terms of accuracy and stability of the predictions of simultaneously assessing the Total Born and Number of Weaned Number characters in a line of rabbits were evaluated, with respect to doing it individually.With the joint analysis, greater accuracy was obtained for the Number of Weaned Character. The Spearman correlation between the orderings of the predictions of both models was high in both characters, although higher for Total Born.