Document Detail

Noninvasive reproductive steroid hormone estimates from fecal samples of captive female sea otters (Enhydra lutris).
MedLine Citation:
PMID:  13129499     Owner:  NLM     Status:  MEDLINE    
Noninvasive methods were validated for monitoring fecal metabolites of reproductive hormones (total estrogens and progestagens) in sea otters. Several captive female sea otters were sampled an average of two to three times per week over at least 1 year to document the reproductive hormone levels within each major reproductive event (estrus, anestrus, luteal phase, and pregnancy). We report significant differences in reproductive hormone levels consistent with most reproductive categories, as well as the minimal number of consecutive samples needed to accurately determine pregnancy using these methods.
Shawn Larson; C J Casson; Sam Wasser
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Validation Studies    
Journal Detail:
Title:  General and comparative endocrinology     Volume:  134     ISSN:  0016-6480     ISO Abbreviation:  Gen. Comp. Endocrinol.     Publication Date:  2003 Oct 
Date Detail:
Created Date:  2003-09-17     Completed Date:  2004-06-17     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370735     Medline TA:  Gen Comp Endocrinol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  18-25     Citation Subset:  IM    
The Seattle Aquarium, About, 1483 Alaskan Way, Pier 59, Seattle, WA 98101-2059, USA.
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MeSH Terms
Analysis of Variance
Estrogens / analysis,  metabolism*
Estrous Cycle / metabolism*
Feces / chemistry*
Otters / physiology*
Pregnancy Tests / methods*,  standards*
Progestins / analysis,  metabolism*
Radioimmunoassay / methods
Reproduction / physiology*
Reg. No./Substance:
0/Estrogens; 0/Progestins

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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