Technically, the eggs should be fertile from 10 days after putting a rooster in with a hen ... however I have had batches from that early not work and tend to wait until 15 days before collecting them for hatching to be on the safe side ... saves you finding out later that you just 'sat' on infertile eggs for three weeks ...
There shouldn't be a problem as long as the number roosters is not to large. The average ratio is one rooster for every four to six hens. If there are any more roosters than this they can cause damage to the hens.
Roosters don't lay eggs. Hens do.
Roosters are able to mate anytime of the year, but it's the hens that have to be willing to accept them that counts. Hens begin to lay eggs when the photoperiod (that's how long the sun stays in the sky during a single 24 hour period) gets longer, i.e., spring time. Since the term between copulation and egg development is short, roosters are able to breed hens in the spring time to encourage fertilization of eggs, which give chicks.
Old chickens are called hens or stewing hens. These are chickens that no longer produce eggs. Their muscles are tough and need to be stewed a long time to become a delicious treat. They make good chicken soup.
Siblings or not there will be competition between the two males for the hen. One of the roosters will take a dominant role but the three of them should work it out and live together quite well. There really is nothing you can do to stop them if they squabble and fight.
Roosters have long, bright-coloured tail feathers really for only one reason; to show off to the hens. These feathers are known as Ornamental Feathers and the most colourful always results in good courting results.
You might want to check your roosters spurs. If they are too long you have to snap them off. Don't clip them! That hurts more then snapping them off.And they won't get cut up if he has too manyhens. It mostly happens when he has too little or their are too many roosters.
They are for 1) fighting with other roosters to prove his supremacy, and become the leader of the hens. and 2) for aiding hium so stay on the hens when they are mating. Because hens usually dont like it so the rooster needs all the help he can get when trying to stay on long enough to allow successful fertilisation.
It may as hens generally are larger and have more meat to them than roosters and the size of the bird determines how long it needs to cook.
Spurs are long, talon-like bones which protrude from the insides of a chickens shanks. They are lower on the shank, near the foot.Although rare, some hens can also grow spurs.
It depends on the breed of the chicken. Bantam chickens are quite small, about 20 centimeters long. Full size hens are about 30 centimeters long, and full size roosters are a bit larger than this.
Spurs are long, talon-like bones which protrude from the insides of a chickens shanks. They are lower on the shank, near the foot.Although rare, some hens can also grow spurs.