This document focuses on the detection of feeding issues in dairy cows housed in barns through a range of indicators. It centers on elements such as Body Condition Score (BCS), Rumen Fill Score (RFR), fecal observation, rumination, milk urea measurement, analysis of protein and fat levels in milk, as well as milk production and the prevalence of metabolic diseases. A thorough understanding of these indicators will empower farmers to make informed decisions to ensure the well-being and optimal performance of their livestock.