Effectiveness of sorting calves with high risk of developing bovine respiratory disease on the basis of serum haptoglobin concentration at the time of arrival at a feedlot von Holland, Ben P, Step, Douglas L, Burciaga-Robles, Luis O, Fulton, Robert W, Confer, Anthony W, Rose, Trista K, Laidig, Lindsay E, Richards, Christopher J, Krehbiel, Clinton R

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