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🪵 The Threshold

Average U.S. Holstein milk yield nearly doubled 1950-2000, with more than half of the progress resulting from genetic selection despite only moderate heritability (20-40%).

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tagsweb-research, corroborated, xref

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Average U.S. Holstein milk yield nearly doubled 1950-2000, with more than half of the progress resulting from genetic selection despite only moderate heritability (20-40%).

Evidence

Review: Genetic selection of high-yielding dairy cattle toward sustainable farming systems in a rapidly changing world (ScienceDirect)

Categorization

  • corroborated: 2 independent passages support this claim
  • XREF: connects to: Intelligence is malleable and shaped by environment, not fixed by heredity — Harriet A. Washington, A Terrible Thing to Waste, 54
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