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How soon in a calf's life should you begin a deworming program?

Last Updated: August 28, 2007

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Deworming is probably not needed until the calf is at least 6 to 12 months old. Deworming can be done once in the spring and once in the fall. Do not deworm first-calf heifers within 60 days of due date.

Dave Fischer, Extension Dairy Educator, University of Illinois - Illini DairyNET

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