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Article

Stage-Dependent Development of Rat 1-Cell Embryos in a Chemically Defined Medium after Fertilization in Vivo and in Vitro

1 Jan 1997

Abstract excerpt

The present study was conducted to examine the development of rat 1-cell embryos cultured in a chemically defined medium (mR1ECM) soon after penetration of eggs in vivo or in vitro. When eggs were recovered from naturally mated females at 0600-0900 h on the following day, no penetrated eggs with male pronuclei were observed. However, the percentage of pronuclear eggs had increased significantly at 1000-1100 h...

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Identifiers

PMID: 9002647
DOI: 10.1095/biolreprod56.1.180

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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