When the male and female cocks are mated, the cock is stepped on the hen's back and the hen's vagina is pulled out of the cloaca to receive the semen from the cockerel. After mating, the sperm travels along the fallopian tube to the horn end sperm, after the ovulation, the egg enters the fallopian tube horn, and the rice is combined with the egg and fertilized.
Roosters can mate 20-80 times a day, and the number of matings depends on the competition of the rooster, the number of hens, the temperature, and the light. The cock can mate with the same hen several times a day. The amount of ejaculate is different for each rooster, as low as o.1 ml, up to 1 ml. There are more than 400 million spermatozoa. Roosters copulate more often with hens that are moderate in flock, and mating with hens that are prematurely matured or timid. Male and female chickens mate more often in the morning. Fertilized eggs can also be obtained within 7-10 days after the roosters have been removed from the hens. If a new rooster is placed on the day the rooster is removed, the egg produced by the hen after three days is the fertilized egg of the new rooster.
1. Artificial insemination Artificial insemination is the use of artificial methods to collect the semen of the rooster and then lose it to the hen. The specific method is to massage the abdomen below the anus or upper back or back genital area, so that the cock ejaculation, collection and shooting ejaculate, and then use the insemination syringe o.025-0.035 ml of semen into the hen's vagina About 2.5 cm. The semen used for artificial insemination must be fresh and inseminated once every 5-7 days to maintain the highest fertilization rate. And artificial insemination is best in the afternoon after 4 o'clock, will be the highest fertilization rate time.
2, the natural mating hens natural mating members suitable for temperature is about 19 degrees. The time of day when natural mating occurs does not affect the fertility rate. As long as the male and female chickens are healthy and their reproductive functions are normal, good fertility rates are generally obtained.
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