Document Detail

Reproductive performance of a laboratory colony of the deermouse, Peromyscus maniculatus gambelii.
MedLine Citation:
PMID:  1152419     Owner:  NLM     Status:  MEDLINE    
During a 23-mo period approximately 600 litters and 2,500 offspring were produced in a laboratory colony established with wild-trapped deermice (Peromyscus maniculatus gambelii). The incidence of pregnancy and size of litters increased with domestication. Average litter size was 4.3 for all litters and 4.1 and 4.7 for litters born to wild-trapped and first generation females, respectively. Litter size increased up to the seventh sequential pregnancy for both wild-caught and first-generation females and then tapered off. In all litters more males were born than females. The departure from a 1:1 ratio was significant for the combined data and for litters of first-generation females, but not for litters of wild-caught females.
D J Forrester
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Laboratory animal science     Volume:  25     ISSN:  0023-6764     ISO Abbreviation:  Lab. Anim. Sci.     Publication Date:  1975 Aug 
Date Detail:
Created Date:  1975-10-21     Completed Date:  1975-10-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  1266503     Medline TA:  Lab Anim Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  446-9     Citation Subset:  IM    
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MeSH Terms
Animals, Laboratory / physiology*
Housing, Animal
Litter Size
Mice / physiology*
Sex Determination (Analysis)
Sex Ratio

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

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