IntroductionStressors predisposing to bovine respiratory disease (BRD) upon arrival in the feedlot. include the ranch to feedlot transition and mixing cattle from multiple sources. Preconditioning (PC) reduces multiple stressors. but commingling PC and auction-derived (AD) calves in a feedlot may increase BRD risk. https://leoners.shop/product-category/dining-chair-cushion/