. 2006 Sep 17;101(3):304–312. doi: 10.1016/j.anireprosci.2006.07.011

Table 4.

Range of daily relaxin optical density readings for female coyotes, days 23–28 of gestation during the 2000–2003 breeding seasons; NWRC facility, Millville, UT, USA

	Day of gestation
	23^a	24	25	26	27	28^b
Minimum	0.020	0.009	0.049	0.097	0.024	0.100
Maximum	0.138	0.424	0.188	0.242	0.502	0.653
Median	0.043	0.056	0.107	0.140	0.275	0.497
% Pos	25	50	91	100	90	100
n	4	4	11	4	10	7

Days are aligned from day of parturition and assume a common 62-day gestation for all females. % Pos: percentage of samples (n) testing positive per day.

Earliest day of gestation when a positive sample was observed.

All samples from day 28 forward tested positive.