手法を比較

	乳量測定記録	牛のボディコンディションスコア
分野	畜産学	畜産学
系統	Process / pipeline	Process / pipeline
提唱年	1920s	1980s
提唱者	Dairy Scientists	Dairy Nutritionists
種類	measurement and data collection	visual assessment and scoring
原典	Dhiman, T. R., & Tormanen, M. (2015). Effects of grain and hay on milk yield in lactating dairy cattle. Journal of Dairy Science, 78(5), 1066-1075.	Ferguson, J. D., Galligan, D. T., & Thomsen, N. (1994). Principal descriptors of body condition score in Holstein dairy cattle. Journal of Dairy Science, 77(9), 2695-2703.
別名	milk production monitoring, lactation recording	BCS assessment, condition scoring, cattle body evaluation
関連	3	3
概要	Milk yield recording is a systematic method for measuring and documenting the volume of milk produced by individual dairy animals across lactation cycles. Formalized in the early 20th century by dairy scientists including W. L. Gaines, the practice forms the backbone of modern dairy herd management and genetic improvement programs. It enables objective assessment of production performance and identification of high-producing animals for breeding.	Body condition scoring (BCS) is a systematic visual assessment of cattle body fat reserves and nutritional status. Formalized by dairy nutritionists in the 1980s-1990s (Edmonson and Ferguson), BCS integrates palpation of bony landmarks and observation of body shape to quantify energy stores on a standardized scale. The method is essential for nutritional management, health monitoring, and reproductive performance in dairy and beef cattle.