Yes, not all eggs hatch even when a brood hen tends them. "Fake" eggs are available for use when a breeder needs a hen to hatch only a very few eggs. The hen will care for any egg in the nest when she broods.
A Chicken clutch are the eggs that the broody has decided to sit on. "Clutch" is the word used in terms of the eggs she is sitting on.
A broody chicken is when a hen decides to sit on her eggs... even if there is no rooster around, and even if the eggs belong to a bunch of random chickens on the flock... they will just sit on the eggs hoping to hatch them out, i guess.
Sometimes all the eggs hatch, sometimes just a few do and some are duds, and sometimes all of them are duds
It depends on the chicken. Some will sit and then gradually get more and more eggs. Chickens in all don't have a "limit" of eggs they will sit. Often a hen will go broody without sitting on any eggs. Some hens have sat on twenty eggs but it can be hard for them. Sometimes one egg. But on average and for an average chicken, it would be around a dozen.
lays eggs or something best i can answer XD
so it can keep them warm.
Cows don't lay eggs, or milk duds. Cows have calves and produce milk. Bulls produce semen to fertilize the cows.
they might be duds
Because it is in their nature to sit on eggs, even when there are none there. But they need to get up to get the exercise for their legs.
Balut. A fertilized egg, with a partially developed embryo, boiled, is a Filipino delicacy. I like to add a little salt.
yes but they will only hatch into chicks if there was a male and female. or else they are just duds. you can do whatever you want with the duds.
Chickens would sit on as many eggs as possible to keep them warm to help them grow. You don't have to put eggs back after they are laid if you want to use them for cooking. If you would like them to hatch, let the chicken keep them safe, or perhaps put them in an incubator, but research that first.