1 Arterial blood from 63 male (315 - 500 g) and 60 female (210 - 290 g) healthy Sprague-Dawley rats was ana lyzed for 16 hematological and 22 clinical chemistry parameters.
2 Nine of these parameters were associated with growth and developmental changes in males between 38 - 78 days and females 49 - 89 days of age.
3 Weight gain in both sexes followed patterns consistent with other studies using this strain, but interexperi mental variation was as much as ± 22%.
4 Rectal temperatures of females averaged 37.28°C, being statistically greater (P < 0.05) than the average male at 36.99°C.
5 The data provide reference values for use in toxicolo gical and other investigations.
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