Jackson ratio
- 杰克森量表（杰克森量表适用于欧洲陆龟和贺曼陆龟，通过身长和体重比率来判断是否适合冬眠。其他种类的陆龟不适用）
Jackson ratio
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abstract:
Researched and devised by Dr. Oliphant Jackson, the Jackson ratio is a method of determining whether a member of the tortoise species Testudo graeca or Testudo hermanni is maintaining its optimum bodyweight, which is necessary for a successful hibernation.
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