| Literature DB >> 943527 |
Abstract
The relationships between the size and sex composition of the litter and puberty in female mice were investigated. Both factors significantly affected the age of first vaginal oestrus; litter size accounted for 22% of the total variation in age at puberty, and litter sex composition for 8%. When no males or only one male was present in litters of 10 young the females matured significantly earlier than when two or more males were present.Entities:
Mesh：
Year: 1976 PMID： 943527 DOI： 10.1530/jrf.0.0460369
Source DB: PubMed Journal: J Reprod Fertil ISSN： 0022-4251