Fig. 3From: Indirect quantification of IgG using a digital refractometer, and factors associated with colostrum quality in Norwegian Red CattleA receiver operating characteristic curve shows the relationship between clinical sensitivity and specificity for every possible cut-off in Brix% to identify the target condition of high quality colostrum (> 50 g/L) using radial immunodiffusion assay assessment as the gold standard in colostrum samples from 167 Norwegian Red dairy cows in 19 herdsBack to article page