Evaluation of bull-producers of different lines by the quality of posterity

Evaluation of bull-producers by quality of posterity has gained great importance when using artificial insemination. The article provides an assessment of different bulls depending on their linear affiliation. It was founded that the selection of bulls for artificial insemination inside the lines should be carried out taking into account their assessment of quality of the posterity. The prediction of productivity during the selection will have higher accuracy in the case of using neutral bulls. The use of bulls not verified by the quality of the posterity does not make it possible to predict with a high degree of probability the severity of the main breeding characters in the directed selection.