Department of Reproductive Oregon Regional Primate Beaverton,
the
Next
Periovulatory
Period
Cycle1
SELKER
Physiology, Research Center,
Oregon
97005
ABSTRACT A dose-dependent reduction in the secretion of FSH during estrus in the hamster was induced by the injection of increasing volumes of bovine follicu!ar fluid (bFF). Partial inhibition of the release of FSH during estrus was observed after 120 ph of bFF was administered to hamsters at 3 h intervals beginning at 1800 h during proestrus and continuing until 0900 h during estrus. Four days later, significantly fewer ova were ovulated by these animals (P