Like a rooster fertilize a hen? How many chickens can fertilize the rooster?

As you know, chickens lay eggs without a rooster. However, in order that they hatched Chicks, they should be fertilized. And here we are without males, of course, do not succeed. One of the unusual features of this poultry species is that males have no penis. Rather, it is they have, but rudimentary in its infancy. In this regard, many have a question about how the rooster fertilizes the hen. And talk about this further.

Why a rooster has no penis

Unfortunately, the answer to this question does not know even the scientists. During the examination of the embryo, it was found that initially, penis Chicks develop quite normally. However, on the ninth day his growth is slowing down, and eventually stops altogether. This happens due to the active work of the Bmp4 gene, the Manager of program cell death. Usually in the body of animals and human Bmp4 is responsible for preventing uncontrolled cell division (and hence the development of cancerous tumors).

The mechanism to stop the growth of the penis of the cock, so scientists have been studied. However, the answer to the question of why the gene Bmp4 is activated exactly at the tip of the sexual organ of the embryo of a bird, they have so far. There are a few versions, more or less plausibly explain this phenomenon. Some scientists believe, for example, that the concentration of Bmp4 gene at the tip of the penis of the embryo in some way connected with his presence in the beak of the embryo. In the latter case he is responsible for the growth of the teeth, which the chickens don't need.

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There is one pretty convincing theory, according to which the growth of the penis in the embryo – the result of natural selection and hyperactivity cocks. Some researchers believe that chickens are a long time in the process of evolution prefer to choose males with a penis smaller. The result turned out so that the sexual organ the knights completely atrophied.

How do roosters fertilize the hen

Physiologically, the process of mating this bird looks like this:

• The cock begins to chase around the yard for his favourite lady;
• Upon reaching the chicken, he is dancing on her back, as they say, tramples on it;
• He presses his cloaca to the cloaca girlfriend;
• At the brief contact of this kind occurs the transfusion of semen.

Below you can see how the rooster fertilizes the hen. The photo shows this clearly. As you can see, despite the fact that the penis in males absent, superficially this process in chickens nothing special is not represented.

Device reproductive system

So, how do the roosters fertilize the hen, I think you more or less clear. Now let's see how, in fact, arranged the reproductive system of chickens. The process of fertilization of the eggs of this bird are quite natural and normal. That is, after the sperm gets into a cesspool, they begin to move around in search of egg and finding it embedded inside.

The Cloaca, used for mating, passing on the chickens is still a waste of life. The very same reproductive system of these birds consists only of the internal organs. In chickens it is a racemose ovary located in the left part of the peritoneum, cocks – a pair of yellowish-white testicles with the ejaculatory channels flowing into the cloaca.

The Ratio of individuals of different sexes in the herd

Perhaps the question about how the rooster fertilizes the hen, and important purely informative purposes. However, for successful breeding herds of this knowledge is unlikely to be too useful. Much more important to be aware of how many males in the herd must have a certain number of chickens. After all, how properly selected, the ratio of individuals of different sexes, will depend on the quality of the fertilised eggs, and therefore the percentage of vyvodyaschy chickens.

The owners Usually give birth to one rooster for ten hens. On large poultry farms to obtain hatching eggs often use the ratio of 1 to 20. On these figures, it should be targeted. Ten individuals – the best answer to the question how many chickens can fertilize cock. The only thing that can affect the required number of males – especially this particular breed. If the character of its representatives living and active – increase the number of chickens. When the content of calm breeds, on the contrary, give birth to more males.

How to choose the cock?

Thus, the ratio in the herd of individuals of different sexes has a major impact on the quality of the offspring. However, to an even greater extent the survival and productivity of future generations in a herd depends on the characteristics of the rooster. Choose the manufacturer, of course, to properly. How the rooster fertilizes the eggs of the chicken, we understood. The process is completely natural. That is just the sperm penetrate the egg, whereby the latter begins to divide. But, of course, for good fertility they first need to be active and healthy.

It is believed that goodrooster, you can choose focusing not only on its exterior (which, of course, must fully comply with the requirements of the breed), but also drawing attention to his behavior. To keep in the herd is the bird that:

• Actively suppresses attempts to establish supremacy in the herd any chickens;
• Sings loudly and his whole appearance shows who's boss.

Of Course, you should pay attention to how a rooster fertilizes the hen. A good individual will mate with the women of his "harem" willingly and confidently.

How to make bettas not fighting

So how the rooster fertilizes the hen and how many males should be kept in the herd, you now know. The ratio of 1 to 10 usually gives the best results. Thus, if hens in the herd very much, cockerels, of course, have to start several. Meanwhile, as you know, because of their activity these birds love to compete. And in a fight sometimes cause each other serious damage. How can we avoid such troubles? For this you just need:

• Select of the litter is not too aggressive species.
• In the middle of a chicken coop ladder. Weak cock when a strong attack is to jump on it to avoid more injury.

Thus, you now know how the roosters fertilize the hen. This process is, as you can see, quite natural. Even despite the fact that the external genital organs of these birds as there are none.