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Original Research
Published 28 September 2026
Activity-based first estrus detection in grazing heifers and first-lactation dairy cows for use as novel fertility phenotypes at scale
Simon J. R. Woodward · Daniel P. Garrick · Nicole M. Steele · Melissa A. Stephen · Claire V. C. Phyn · Susanne Meier · Chris R. Burke
Frontiers in Animal Science
doi 10.3389/fanim.2026.1916553