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Limits to adaptation

  • D. M. Broom
  • K. G. Johnson

Abstract

The relative constancy of conditions which exists within the body of a healthy animal is achieved by the operation of innumerable homeostatic controls. The control systems react to environmental and endogenous stimuli so as to correct or prevent displacements from the optimal range of conditions. The response is usually proportional to the actual or expected change (Stephens, 1988) and is controlled around a fixed, or sometimes a variable, reference level.

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Copyright information

© D. M. Broom and K. G. Johnson 1993

Authors and Affiliations

  • D. M. Broom
    • 1
  • K. G. Johnson
    • 2
  1. 1.Department of Clinical Veterinary MedicineUniversity of CambridgeUK
  2. 2.School of Veterinary StudiesMurdoch UniversityAustralia

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