Repeatability of Objective measurements on the Rear Legs of Dairy Cows

摘要

The objective of this paper was to estimate the repeat- ability of objective measurements on the rear legs of diary cows to see whether higher repeatability esti- metes could be obtained compared to the corresponding subjective linear score. Between September and No- vember 1998, seven measurements of distance among dewclaw, hip, hock, pinbone, and thurl were taken on 73 cows form the University of Illinois dairy farm. Mea- surements were combined to define triangles and there- fore angels reflecting rear leg structure.