The study presents evaluation of pig genetic markers (MHS and MC4R) associated with performance traits in the Lithuanian White pig breed. The study presents a direct approach the testing and explanation of the quantitative part of the trait and QTL with marker based on estimated breeding values in the Lithuanian White population. Information about the strategies for association analysis and improvement can be applied for further characterization of the Lithuanian White population. The use of breeding values instead of single measurements reduces the bias in the recorded performance traits, therefore, the results obtained by using the marker for the Lithuanian White population gives animal breeders the opportunities for realization of a short-term goal in their selection criteria.