After sowing, the sow is again estrus and is a sequela of castration because of its regular occurrence of estrus symptoms such as noisy circulation and loss of appetite, which affects growth and fattening and causes economic losses to the breeder.

Causes of recurrent estrus

1. The castration is not complete. If only one side of the ovary and uterine horn are removed, the rest remains in the abdominal cavity of the sow.

2. When the uterus and ovaries are removed from the gilts, the junctions of the two uterine horns are too long, and they continue to grow as the sow develops, accumulating abundant blood vessels and nerves.

3. A few sows in the severed cervical septum bulged with a vesicle and the blood vessels proliferated above them causing estrus symptoms.

4, some sows have been removed uterus, but because of the ovaries left in the abdominal cavity, was embedded in tissues and development caused by estrus.

Prevention and treatment

1, preventive measures. Castration gilts should be removed from their ovaries and uterus, and part of the cervix removed.

2, the treatment of estrus after sow. Cut the abdominal wall like a big peach cut sow and check whether there are any remaining parts of the uterus and ovaries, and remove them if there is any; if not, but you can touch the thick and hard cervix, you can pull it out by force. If you do not move, you can use a sterile chopsticks inserted from the vagina to help pull out the incision, cut off after ligation, and then suture the incision, the surgical process must be strictly disinfected. Some sows are not long after the cervix is ​​left. It is very difficult to use a pair of chopsticks to pull out the uterus. In the absence of other methods, the vesicles bulging from the cervix can be punctured, and then the incision can be sutured. it is good.

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