Increasing longevity in dairy goats enables to reduce replacement costs and increase individual milk yield. How to early identify candidate goats for a long productive lifetime? Primiparous goats have an increased risk of being culled due to supplementary needs for growth. They also must produce milk and safeguard body reserves for health and reproduction, but energy can’t be maximized for each biological function. Assessing diversity of phenotypic trajectories (e.g., milk yield (MY), body weight (BW)) is an interesting way to understand interactions and priorities among biological functions. The objective of this work was to evaluate associations between MY and BW trajectories in primiparous goats and seek for unfavorable associations that lead to culling. Routine data from an experimental station in South France (Le Pradel, French Livestock Institute) were used. The dataset included 655 Alpine primiparous goats from 1996 to 2021. Culling dates and data of the next lactation were provided. Weekly MY records were fitted using the Wood model and monthly BW records were fitted using the Grossman multiphasic model. After fitting procedure, level, and speed indicators for MY and BW were calculated to summarize each individual trajectory. Principal component analysis was performed on MY and BW indicators separately to generate clusters of dynamic profiles. Chi² test was performed on MY and BW clusters. Three clusters were identified for both MY (“low peak yield-high persistency” (7%), “middle peak yield-low persistency” (33%), “high peak yield-low persistency” (60%)) and BW (“growth” (14%), “intense depletion-longer repletion” (30%), “intense depletion-fast repletion” (56%)). Nine profiles, characterized by combination of one MY and one BW cluster, were established and 76 % of goats were mainly in four profiles suggesting a typology of energy partitioning among these functions. The highest milking goats with intense depletion and fast repletion have 49 % risk of being culled at the end of their first parity. These results open the perspective to identify animal profiles that are economically interesting for breeders because they will be able to go through several lactations.