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Physiological Data Reference Values for Tapir Species

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<strong>Reference</strong> ranges <strong>for</strong> sex and age groups:<br />

A large number of factors, beyond simply the health status of the animal, can influence test results obtained from an<br />

animal. In recognition of that fact, ISIS has begun to calculate <strong>for</strong> some species, reference values from various<br />

subsets of the available in<strong>for</strong>mation. At the recommendation of the In<strong>for</strong>mation Resources Committee of the<br />

American Association of Zoo Veterinarians, the first subdivisions of the in<strong>for</strong>mation have been along the lines of sex<br />

and age. Raymund F. Wack, DVM, who chaired that committee at the time, was instrumental in establishing many of<br />

the species age grouping used in this publication and we greatly appreciate his ef<strong>for</strong>ts.<br />

When a species has at least 100 records in the ISIS database, in addition to the overall reference values calculated<br />

from all the sample results, separate pages of reference pages are calculated <strong>for</strong> various sex and age groups. The<br />

age divisions vary <strong>for</strong> different species, and are selected with the intention of dividing the samples into the broad age<br />

groups of neonatal, infant/juvenile, adult and aged animals. When dividing samples by sex, only samples obtained<br />

from known males or known females are included in the calculations. Separate pages are produced <strong>for</strong> each<br />

combination of age and sex divisions, a process that can produce as many as 15 pages of reference values <strong>for</strong> a<br />

single species. Clearly, a species must have a large number of samples in the database to produce a subset<br />

reference page with a significant number of samples. Currently, any subset reference page with results is included in<br />

this publication but the value of pages calculated from a small set of sample results will need to be judged by the<br />

person using this reference.<br />

It is hoped that future editions will be able to provide reference values <strong>for</strong> other subsets of the available in<strong>for</strong>mation,<br />

such as <strong>for</strong> samples collected with chemical restraint versus manual restraint, or animal fasting time and animal<br />

activity prior to sample collection.<br />

International <strong>Species</strong> In<strong>for</strong>mation System<br />

Eagan, MN 55121 U.S.A.<br />

http://www.isis.org/<br />

viii

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