01199nam a2200193 a 450000100080000000500110000800800410001902400390006010000190009924500950011826002010021330000150041450001240042952003670055365300210092065300300094170000180097170000160098910634652023-02-27       2022    bl uuuu     u01u1 u    #d7 a10.3920/978-90-8686-940-4_6642DOI1 aSILVEIRA, N.F.  aLongevity in genetic evaluation of Holstein cows in Uruguay. [664].h[electronic resource]  aIn: Proceedings of the World Congress on Genetics Applied to Livestock Production (WCGALP), 12., Rotterdam, the Netherlands, 3-8 July 2022. doi: https://doi.org/10.3920/978-90-8686-940-4_664c8686  a2741-2744.  aArticle history: Published online: February 9, 2023. -- Corresponding author: N.F. Silveira, email: nferraz@inia.org.uy  aABSTRACT.- The objective of this study was to estimate variance components and to analyze the possibility of carrying out a genetic evaluation of the longevity trait in animals of the Uruguayan dairy production system of the Holstein breed. Longevity was defined as a binary trait with values of 1 and 0 whether or not the cow survived a lactation, respectively.  aDAIRY PRODUCTION  aGENETIC EVALUATION SYSTEM1 aRAVAGNOLO, O.1 aAGUILAR, I.