Document Detail

Effect of the presence of females on plasma testosterone concentration of male marsupial bandicoots, Isoodon macrourus, housed in enclosures.
MedLine Citation:
PMID:  1936927     Owner:  NLM     Status:  MEDLINE    
To determine whether the presence of sexually active females influences the reproductive processes of the male bandicoot, plasma testosterone concentrations were monitored in males isolated from females. Blood samples were obtained weekly from 8 male bandicoots housed with females and from 12 male bandicoots in an enclosure without females. Reproductive tracts were obtained from 7 of the male bandicoots of the latter group during the breeding season. In both groups plasma testosterone increased prior to the start of the breeding season and was not influenced by the absence of adult females. There was no significant difference in testosterone concentrations between groups at any time of year. Testicular, epididymal, and prostatic weights of males housed without females were similar to those reported for male bandicoots housed with adult females during the breeding season. These results demonstrate that the seasonal change in reproductive function in the male are not mediated via the female.
R T Gemmell
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  General and comparative endocrinology     Volume:  83     ISSN:  0016-6480     ISO Abbreviation:  Gen. Comp. Endocrinol.     Publication Date:  1991 Sep 
Date Detail:
Created Date:  1991-12-13     Completed Date:  1991-12-13     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:  458-62     Citation Subset:  IM    
Department of Anatomy, University of Queensland, St. Lucia, Brisbane, Australia.
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MeSH Terms
Epididymis / anatomy & histology
Estrus* / physiology
Marsupialia / physiology*
Organ Size
Prostate / anatomy & histology
Reproduction / physiology
Testis / anatomy & histology
Testosterone / biosynthesis,  blood*
Reg. No./Substance:

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

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