Nicholson M J, Sayers A R
International Livestock Centre for Africa, Addis Ababa, Ethiopia.
Trop Anim Health Prod. 1987 Aug;19(3):127-35. doi: 10.1007/BF02239705.
There is a scarcity in the literature of statistical analyses of condition score data. This paper assesses the repeatability and reproducibility of a condition scoring system in order to test whether it can be sufficiently reliable for widespread use and statistical treatment. Differences in cow condition resulting from an eight-month dry season, changes in lactational status and watering frequency were used to demonstrate how condition score data can be used sequentially in parallel with weight or heart girth data to monitor changes in body reserves over a prolonged period. The condition scoring system is based on a nine-point scale and its superiority over a six-point scale is demonstrated under the conditions encountered in Africa. An analysis of the trend in condition over time showed that cows watered daily lost condition linearly while cows watered every three days lost condition in a quadratic decline.
关于体况评分数据的统计分析，文献中较为匮乏。本文评估了一种体况评分系统的重复性和再现性，以测试其是否足够可靠，可供广泛使用和进行统计处理。利用八个月旱季导致的奶牛体况差异、泌乳状态变化和饮水频率变化，来证明体况评分数据如何能够与体重或胸围数据并行，依次用于监测长期内身体储备的变化。该体况评分系统基于九点量表，并且在非洲所遇到的条件下，证明了其相对于六点量表的优越性。对随时间变化的体况趋势分析表明，每天饮水的奶牛体况呈线性下降，而每三天饮水一次的奶牛体况呈二次下降。
