1. Box and whisker plots showing (A) serum IgG measured by radial immunodiffusion and (B) serum total protein measured by refractometer.
Box and whisker plots showing (A) serum IgG measured by radial immunodiffusion and (B) serum total protein measured by refractometer. Samples were taken at calf recruitment, from 1 to 8 days after birth. Results are split by farm of origin and farms are ordered by median value. Horizontal lines indicate the commonly used reference values: in (A) red is at 10 mg/ml and green at 12 mg/ml and in (B) red is at 50 mg/ml and green at 55 mg/ml. Letters show the results from analysis of variance: groups with the same letter did not differ significantly (P>0.05).
Kate F Johnson et al. Vet Rec Open 2017;4:e000226
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