For Muscovys, pretty frequently, if you mean mating, and ours lay heavily from around the first of April to the last of October, and start up again in the spring. Right now we get 8 or 9 eggs every day. Our Pekin hen lays one egg every day, year round, even when it was 26 degrees below zero. But she is not at all broody, while the Muscovys sit, hatch, and raise their own young.
Ok, I understnad now. And isn't that what makes bloddy eggs?Fertilized eggs are perfectly edible! And if you have enough calcium in your duck's diet she can lay eggs without a drake at all, but they would of course not be fertile. Our ducks mate pretty often ( I don't stand out there to see how many times a day,) some of the hens may be laying fertile eggs and some unfertile eggs, doesn't matter, they all taste the same and are equally nutritious. Only matters if you let them sit and incubate, then of course only the fertile ones will hatch.