Peripartum BCS and BW response to prepartum acidified coproducts. Body condition score and BW data were collected on d -21, –7, 1, 10, and 21 relative to calving. (A) Peripartum BCS did not differ between control (CON), Bio-Chlor (BC; Church and Dwight Co. Inc., Princeton, NJ), or SoyChlor (SC) diets prepartum (P = 0.68). However, BCS was affected by parity (P = 0.04) and day (P < 0.01). Treatment × day interaction: P = 0.84; treatment × parity × day interaction: P = 0.07. (B) Peripartum BW tended to be affected by prepartum treatment (P = 0.09) and was significantly affected by both parity (P < 0.01) and day (P < 0.01). Treatment × day interaction: P = 0.99; treatment × parity × day interaction: P = 0.92.