Prior Pregnancy Affects Milk Production (IMAGE)

Cold Spring Harbor Laboratory

Prior Pregnancy Affects Milk Production

Caption

The mammary gland in previously pregnant mice (bottom row) produces milk earlier in a second pregnancy than in mice of the same age experiencing pregnancy for the first time (top row). For purposes of the experiment, both groups of mice were given slow-releasing pregnancy hormones, which accurately mimic hormonal activity in real pregnancy.

Credit

Hannon lab, CSHL

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