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Respiratory disease doubles the risk of heifers leaving the herd early

US study shows respiratory disease, relative birth density and reproduction are some of the key factors associated with heifers leaving the herd early

Katie Fallon

Livestock Specialist

16 October 2026 鈥� 4 min read

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Lighter animals at birth were more likely to leave the herd before 120 days, a study of American herds found.

Heifers represent the future of the farm, therefore should be considered an important investment within any dairy system. However, it is not an investment without cost, and with no return on investment...

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