Relation of the Intact Pituitary Gland to Artificially Induced Ovulation

Abstract

Conclusion

The normal hibernating frog may be induced to ovulate 50% or more of its eggs by the injection of 3 to 4 anterior pituitary glands from female frogs, but if the frog is first hypophysectomized and then allowed to recover completely from the operation, its own gland (or one from another female) will elicit the same degree of ovulation.