A rooster fertilizes chicken eggs by mating with a hen before the formation of an egg. If a hen lays an egg without first mating with a rooster, the egg is not fertilized. However, if she lays an egg after mating with a ... More »

Roosters are male, and they do not lay eggs. Hens, their female counterparts, lay all of the eggs, and they do not need the rooster's help for that. More »

Birds fertilize their eggs through copulation or male and female sexual interaction. The male bird produces sperm which is deposited into the female's cloaca during mating, and this results in the internal fertilization ... More »

According to "Backyard Poultry Magazine," factors that cause chickens to eat their own eggs are overcrowding, excessively bright coop lighting, inadequate nests and the presence of juvenile chickens in the egg house. Oth... More »

When a rooster and hen mate, a fertilized egg is produced. The chicken lays the egg and, if exposed to the right conditions, it continues to develop for 21 days after which a chick hatches. More »

When a rooster and hen mate, the semen is stored inside the oviduct and is used later to fertilize the egg before the shell forms around it. The semen can be used up to a month after storage. More »

Once it has reached physical maturity at about 6 months, a hen lays eggs regardless of whether it has mated with a rooster. The egg production also occurs regardless of male participation. More »