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Communications: Serum Progesterone and Estradiol Concentrations in Captive Manatees Trichechus manatus
Author(s) -
FrancisFloyd R.,
White J. R.,
Chen C. L.,
Cardeilhac P. T.,
Cichra C. E.
Publication year - 1991
Publication title -
journal of aquatic animal health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.507
H-Index - 52
eISSN - 1548-8667
pISSN - 0899-7659
DOI - 10.1577/1548-8667(1991)003<0070:cspaec>2.3.co;2
Subject(s) - biology , juvenile , endocrinology , medicine , manatee , serum concentration , fishery , ecology
Serum concentrations of progesterone (P) and estradiol (E 2 ) were measured over a 7‐month period in two captive juvenile female manatees Trichechus manatus . The animals, aged 5.17 and 6.58 years, had mean (±95% confidence interval) serum P concentrations of 0.45 ± 0.27 ng/mL and 0.67 ± 0.24 ng/mL, and mean serum E 2 concentrations of 91.1 ± 71.9 pg/ mL and 121.6 ± 50.6 pg/mL, respectively. A mature male was sampled twice: serum P was 0.92 and 0.79 ng/ mL, and serum E 2 was 117.6 and 207.8 pg/mL. A gravid female was sampled once during her first trimester: serum P was 3.42 ng/mL, and E 2 was 27.7 pg/mL.