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. 2017 Sep 20;28(3):99–103. doi: 10.1294/jes.28.99

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©2017 The Japanese Society of Equine Science

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License. (CC-BY-NC-ND 4.0: https://creativecommons.org/licenses/by-nc-nd/4.0/)

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Fig. 1. — (Top) The relationship between age and HR fit the equation Y=48.2X^–0.129(R²=0.705). (Bottom) The relationship between age and HR from 0–7 years of age fit the equation Y=44.1X^–0.179(R²=0.882).