How long can hatching eggs wait before incubation? Research comparing 0, 3, and 10 days reveals a surprising hatch-timing pattern—and the cost of prolonged storage.

Turning goose eggs wider changed more than embryo position—it improved hatchability, reduced late mortality, and changed how the developing embryo used the yolk.

Could a wider turning angle prevent late embryo losses? Pekin duck hatchability climbed from about 91% to 96.6% in this controlled study.

A Pekin embryo and a Mulard embryo can be on the same incubation day—but not at the same developmental stage. See what that means for candling, breakout diagnosis, and hatch timing.