With the gradual improvement of the breeding level, the breeding of pigs has also evolved from the insufficiency to artificial insemination. Although the utilization rate of artificial insemination boars is higher than that of natural insemination, it is more conducive to the production management of the farms. Advantage. When mating, boars and sows will have a series of “foreplay behaviors†before breeding. Generally, this behavior will last for 3-5 minutes, and some young boars are eager to climb and shorten the foreplay time due to lack of experience. , the breeding failure will be caused because the sow's sexual desire is not driven by asexual reflexes.
In addition, after the boar has climbed, some parts of the boar's body and the body of the sow (sex sensitive band of the sow) will stimulate the sexual desire of the sow, thereby improving the sexual sensitivity of the sow and promoting the release of the pituitary from the pituitary of the sow. The vasopressin promotes the contraction of the sow's uterus, which is more conducive to the absorption of semen and makes the insemination smoother.
For the sow's sexually sensitive zone, the different breeding sows are slightly different, generally including the sow's lower back (including the area around the groin, ribs), the reproductive tract and related parts (including the labia, vagina and clitoris). Thin areas of the breast, nasal mucosa and other epidermal tissues. The details are shown in the red box below:
The red box shows the sex sensitive part of the sow
At the time of the handover, the boar will continue to stimulate these sensitive parts, but artificial insemination, due to conditions, can not effectively stimulate these parts, it is recommended that the sows are located in the abdomen 3-5 minutes before artificial insemination, Stimulation of the flank, breasts, buttocks and groin and the areas of the vulva and back with thin skin and soft skin. It can be used for sputum (flank, buttocks), sputum (lower abdomen), support (breast), pinch (vulture), pressure (back). However, it should be noted that the massage power should be appropriate, and the breeding operation should be carried out in time after the massage to avoid the fatigue of the sow.
The posture used in the insemination process should be as far as possible to make the left arm cross over the back of the sow, and the left hand can touch the breast of the side and the back of the sow, and then massage accordingly to continue to stimulate the contraction of the uterus.
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