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. 2008 Jun 5;89(3):654–664. doi: 10.1644/06-MAMM-A-436R1.1

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© 2008 American Society of Mammalogists

This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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Fig. 5 — Weekly mean (± SD) serum levels of prolactin (ng/ml) from 5 pregnant (n = 85) and 8 nonpregnant (n = 120) female coyotes during the breeding seasons in 2000–2002. Data are aligned to the estimated day of ovulation (day 0). An asterisk (*) indicates statistical difference detected between study groups. Also shown are plasma relaxin (OD = optical density) readings from 82 pregnant coyotes (n = 209); seasons 2000–2003. Relaxin was <0.100 OD for nonpregnant coyotes (data not shown).