Body condition score (BCS) in dairy cows provides a practical welfare assessment of nutritional status, with under-conditioned cows experiencing welfare costs from metabolic disease and over-conditioned cows facing calving difficulties.
Body condition welfare in dairy cows is a nutritional management problem with measurable welfare consequences. Cows that enter calving over-conditioned develop fatty liver and ketosis - debilitating metabolic diseases causing depression, anorexia and secondary health problems. Cows that become excessively thin in early lactation experience energy deficit that causes immune suppression, reproductive failure and long-term health impacts. The welfare signal is in the BCS trajectory - not just the current score but whether animals are gaining or losing condition at critical production periods. Regular BCS monitoring enables nutritional adjustment before welfare costs develop, making it one of the most practical routine welfare management tools available.