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An outbreak of sand impaction in postpartum dairy cows
Pedro Melendez1, Traci Krueger, Mauricio Benzaquen
1Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, PO Box 100136, Gainesville, Florida 32610-0136, USA. melendezp@mail.vetmed.ufl.edu
Abstract:
Twenty-two cases of indigestion occurred in a 650-cow herd. Five cows had severe sand abomasal impaction, diagnosed by laparotomy. The pH of prepartum cows' urine was < 6.0 and of sand 8.0. Feed showed a dietary cation-anion difference < or = -110 mEq/kg. After feeding management corrections, no more cases were diagnosed.
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