The administration of exogenous pLH at oestrus onset in weaned sows, together with once-daily oestrus detection and a single FTPCAI may be an interesting tool tooptimise labour use and the dissemination of genes fromhigh indexing boars. This study aimed to evaluate ovula-tion time and reproductive performance in weaned sowssubmitted to a single or double fixed-time inseminationfollowing pLH application at oestrus onset in comparisonwith sows submitted to multiples PCAIs without a previouspLH application.