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Lactation curves for daily milk yield (kg) up to 305 DIM in primiparous cows by category of BCS at calving (top left panel), 14 DIM (top right), 21 DIM (bottom left), and at nadir (bottom right). Values for BCS were categorized using the quartile distribution [Q1 = lowest BCS (blue), Q2 = orange; Q3 = gray; Q4 = greatest BCS (yellow)]. The full model included calving season and BCS1 as covariables.
