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File - Dairy cows stand in a field outside of a milking barn at the U.S. Department of Agriculture's National Animal Disease Center research facility in Ames, Iowa, on Tuesday, Aug. 6, 2024. (AP Photo/Charlie Neibergall,File)
File - Dairy cows stand in a field outside of a milking barn at the U.S. Department of Agriculture's National Animal Disease Center research facility in Ames, Iowa, on Tuesday, Aug. 6, 2024. (AP Photo/Charlie Neibergall,File)