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 to optimise labour use and the dissemination of genes fromhigh indexing boars. This study aimed to evaluate ovulation time and reproductive performance in weaned sows submitted to a single or double fixed-time inseminationfollowing pLH application at oestrus onset in comparisonwith sows submitted to multiples PCAIs without a previouspLH application.