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Technical Points Of Artificial Insemination In Breeders

Technical points of artificial insemination in breeders

Breeder artificial insemination technology:

1. Operation method Two people cooperate during insemination, one grabs the chicken and turns the anus, and the other inputs semen. The method of insemination is mostly used hen’s vaginal insemination method.

2. Insemination time. Insemination should be performed after 16-17 o’clock in the afternoon every day, not earlier than 15 o’clock in the afternoon. Tests have proved that the fertilization rate of insemination before 15 o’clock in the afternoon is 4% lower than that after 17 o’clock in the afternoon; the effect of insemination in the morning is far less than that of insemination in the afternoon.

3. Depth of insemination In production, shallow insemination is often used. When the vaginal opening and defecation opening are seen after turning the anus, insert the insemination device into the vagina about 1.5cm. In this way, the fallopian tube will not be hit and the fertilization rate will be affected.

4. Insemination volume When fresh semen is used for insemination, each hen only needs to enter 0.025-0.03ml; when diluted semen is used for insemination, each hen should enter 0.05-0.1ml. The effective sperm count per input should be more than 100 million.

5. Insemination interval In general, the insemination interval is 5-6 days, that is, 1-2 inseminations per week. In order to obtain a higher fertilization rate, it is best to insemate once every 4-5 days without affecting egg production. Start collecting eggs on the third day after insemination. For hens who have had their first insemination, insemination must be repeated the next day.

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Precautions for artificial insemination of breeders

After mating, most of the sperm quickly enter the “sperm storage fossa” at the joint of the uterus and vagina, and then “release” to the infundibulum in a slow and continuous manner.

Due to the temperature of the rooster’s testicles and the special structure of the hen’s reproductive tract, chicken sperm can survive up to 35 days in the fallopian tube, which is much longer than livestock sperm. The fertilization ability of chicken sperm may decline after 3 to 5 days of mating. In order to maintain a high fertilization rate for the breeding eggs, it is necessary to replenish and input high-quality semen at a certain interval. Insemination interval refers to the number of days between two inseminations. The interval between insemination of chickens varies with breed, quality of semen and the dose of each insemination. Under normal circumstances, the interval between insemination is 5-6 days, that is, 1-2 inseminations per week. In order to obtain a higher fertilization rate, it is best to insemate once every 4-5 days without affecting egg production. Start collecting eggs on the third day after insemination. For hens who have had their first insemination, insemination must be repeated the next day.

The depth of insemination should be noted: shallow insemination is often used in production. When the vaginal opening and defecation opening are seen after turning the anus, insert the insemination device into the vagina about 1.5cm. In this way, the fallopian tube will not be hit and the fertilization rate will be affected.
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