The phrase "a fertile egg" is correct and usable in written English.
It can be used in contexts related to biology, reproduction, or agriculture, specifically when discussing eggs that have the potential to develop into a viable embryo.
Example: "The farmer carefully selected a fertile egg to incubate, hoping for a successful hatch."
Alternatives: "a viable egg" or "an egg capable of fertilization".
Finally, he gave them a fertile egg that needed care to hatch.
With the help of artificial insemination and her human bond, Tex laid a fertile egg in 1981.
Modern meat-production systems can turn a fertile egg and a 4kg bag of feed into a 2kg chicken in five weeks.
The morning-after pill doesn't terminate a pregnancy, but aims to prevent the implementation of a fertile egg, KVUE-TV reports.
Writer compensated by transferring a few fertile eggs, which were ever-increasing in number, from the first female (Liz) to the 2nd female (Apathy).
Naturally I chose to purchase an incubator, fertile eggs, and some supplies to teach a class on hatching chickens and to showcase the process at the Ulster County Fair.
Women here work on their careers and wait until the last fertile egg to have a baby.
From 37 females we collected a fertile first egg during both the trial and the implanted clutch and divided the change in sex of first eggs in four categories: first clutch daughter → second clutch son; first daughter → second daughter; first son → second son; first son → second daughter.
And once again it has the quality of a half-seen fable, a story lost in time, rather than the seed of an entirely new and unexpected show: a fertile stone egg just waiting to hatch.
Neither of these females differed from the rest of the experimental group with respect to weight and age, and only one of them produced a fertile first egg.
The other female had produced a fertile first egg, and the 11.0-mm diameter follicle seemed healthy (yellow, of even round shape, and vascularized), but clearly far smaller than a mature second follicle (Figs. 2 and 3).
