Key Points and Detailed Operation Methods of Pig Artificial Insemination Technology

During artificial insemination, the insemination tube must be slowly inserted along the upper wall of the vagina, and advanced while rotating, so that it passes through the cervix and enters the uterine body. The insertion depth of the insemination tube is 23~30 cm; avoid sunlight, electric light and other light sources, in short, the semen needs darkness; handle the semen properly. The sperm motility of the inseminated semen should be no lower than grade 9. A single insemination volume should be between 30~40 ml. Before insemination, the semen should be slowly warmed to about 35 degrees C. The insemination device should be used only after it has completely cooled.

1. Inseminate in place. During artificial insemination, the insemination tube must be slowly inserted along the upper wall of the vagina, and advanced while rotating, so that it passes through the cervix and enters the uterine body. The insertion depth of the insemination tube is 23~30 cm (depending on the size of the sow). If it is too deep, the sperm will not be deposited sufficiently, conception will be difficult, and the number of piglets born will be small; if it is too shallow or mistakenly enters the urethra, conception will be even more difficult. The speed of injecting the semen should be appropriate, and it is best to inject it slowly until finished.

2. Avoid sunlight, electric light and other light sources, in short, the semen needs darkness.

3. Handle the semen properly. Collect, dilute and store the semen according to regulations. The sperm motility of the inseminated semen should be no lower than grade 9. A single insemination volume should be between 30~40 ml (with 40 ml as the standard). Before insemination, the semen should be slowly warmed to about 35 degrees C. If the insemination device is sterilized by boiling, it should be used only after it has completely cooled.