The aim was to estimate genetic parameters for milk urea (MU) concentration and its relationship with milk yield and compositions in Holstein dairy Cows. Edited data were 90. 594 test-day records of milk yield and composition collected during 2015 to 2018 on 13. 737 lactations obtained from 7. https://www.spidertattooz.com/Color-Club-Nail-Lacquer-Pure-Energy-0-5-oz-p9629/