Core Tip: Piglet umbilical hernia is caused by the removal of the contents of the abdominal cavity through the umbilicus. Umbilical hernia can be divided into two types: reversible and invasive.
Piglet umbilical hernia is caused by the removal of the contents of the abdominal cavity through the umbilicus. Umbilical hernia can be divided into two types: reversible and invasive.
(1) Reversible umbilical hernia: There is a sac in the umbilical part of the pig, which has certain flexibility. The capsules vary in size, soft in texture, and have no heat pain. They can also take the exudate into the abdominal cavity and touch the umbilical pulley.
(2) Embedd umbilical hernia: The sick pig is uneasy and has vomiting. There is still feces in the early stage, and the feces are stopped later. The capsules are hard and hot, and the exudates can only be partially or completely unable to repay. If not treated in time, the prognosis is not good.
[cause]
(1) The root cause of this disease is congenital umbilical hernia insufficiency, the contents of the abdominal cavity are removed from the umbilicus through the umbilicus, and some sows have more than 1/3 piglets with umbilical hernia in more than 3 litters, possibly with genetic factors. related. (2) Improper umbilical cord injury, piglet self-broken umbilical cord and umbilical purulent cause umbilical cord damage is the main cause of the disease. (3) Piglets sucking the umbilical cords, fighting, constipation, overeating, squeezing, excessive squeaking during capture, etc. can induce umbilical hernia.
ã€Clinical symptoms】
There is a limited spherical swelling in the umbilicus, no heat pain, the content is soft, the contents can be returned to the abdominal cavity when squeezed or lying on the back, and the umbilicus can be touched in the center of the swollen body along the abdominal wall, causing abdominal pressure due to satiety or struggling. When it is increased, the swelling can be increased, and the spirit and appetite of the sick pig are often unaffected. When the contents are stuck, necrotic or embedded, the sick pigs have symptoms such as hunger strike, vomiting, gastrointestinal suffocation, and elevated body temperature. The contents are not easy to repay, and the squeeze has a firm feeling. In the later stage, there was mental dysfunction, heart rate accelerated, mucous membranes were visible, and even shock occurred.
ã€diagnosis】
Spherical swelling occurs in the umbilicus of the abdominal wall, and the texture is soft. When the supine is pressed, the contents of the hand can be diagnosed as umbilical hernia. Hardening of the contents or adhesion can not be achieved as a closed or necrotizing umbilical hernia. The differential diagnosis must be distinguished from the umbilical abscess: the swelling of the umbilical abscess in the umbilicus is very similar to that of the umbilical hernia, but the swelling does not change with the increase or decrease of the abdominal pressure. The compression does not shrink and the umbilicus is not touched. The initial stage is hard and hot. Pain, the top is soft at the end and the base is still hard, puncture has pus out.
ã€treatment】
4.1 Conservative therapy The sick pig is fasted for 12 hours, supine Baoding, umbilical skin shearing disinfection, use the fingers to fill the contents and insert into the pupil to prevent the intestines from coming out again, suture around the ankle ring, tighten the suture to make the umbilical cord The hole is closed and partially sterilized after knotting. Remove the suture from 10 to 15 days.
4.2 surgical treatment with chlorpromazine 3 ~ 4mg / kg body weight for general anesthesia, or with 2% procaine (plus 0.1% adrenaline 1 ~ 2ml) for local anesthesia, fasting supine or semi-recumbent Baoding. The instruments, dressings, sutures and arms were disinfected with 0.1% New Cleaner and the department was disinfected with iodine. (2) Surgical operation: a straight line incision at the base of the sac (the boar avoids the penis and the foreskin), and the sac is cut by the crease incision to expose the contents of the sputum. The direct repayment of adhesion does not occur; the adhesion can be separated by finger or scissors after separation; the intubation of the intestine is expanded with a blunt tip to enlarge the ankle ring; the necrotic intestine should be removed, the necrotic tissue should be removed, and the intestine should be anastomosed. Finally suture the ankle ring and skin. (3) After the operation, the sick pigs should be kept in a clean and dry circle, fed to a digestible liquid feed, not full, limit strenuous exercise, pay attention to physical weakness or intestinal anastomosis to correct electrolyte balance and prevent abdominal infection. The skin suture was removed 7 to 10 days after surgery.
[Experience]
5.1 The main cause of the disease is improper umbilical cord. The correct method of breaking the umbilical cord is to lightly support the umbilical cord. After squeezing the blood in the umbilical cord to the piglet, the proximal end of the umbilical cord is fixed, and the umbilical cord is cut and coated with iodine at a distance of 6 to 7 cm from the abdominal wall.
5.2 When there are several hair diseases in a litter of piglets, it is necessary to consider whether it is related to heredity. When breeding, the breeding pigs should be replaced.
5.3 Good anesthesia is a guarantee for successful operation. Clinically, 2% procaine is used for local anesthesia, which is convenient to operate. The use of compound chlorpromazine intravenous injection is true, but the static injection rate should be slow, and the body temperature center should be inhibited after absorption. Therefore, keep warm after surgery, and use it with caution.
5.4 Conservative treatment of piglets under 40 days of age, 18 cases of small umbilical hernia, 16 cases of recovery; 5 cases of 50-70 days old piglets, only 1 case of recovery. Through the observation of therapeutic effects, conservative treatment has a significant effect on young piglets with reversible umbilical hernia.
5.5 The base of the sac is less likely to adhere to the contents of the sputum. After making a small incision, use a finger to guide or wrinkle and cut the sac to prevent accidental injury to the intestine. When the piglet is operated, the surgery only needs to make a "one" shape incision. Because of its fast growth, the skin is elastic. Even if the hernia sac is large, it is reduced by the skin's own elasticity, and no unnecessary skin trimming is necessary. When the boar is operated, the area should be farther away from the foreskin to avoid the circumcision.
5.6 When the separation of the intestine and the wall of the capsule is adhered, the intestine is first pulled to the side to make the adhesion site tense, and then the blunt tip is used to cut the wall of the capsule. As long as the old adhesion between the intestines is not affected, it is better not to separate. Applying boiled vegetable oil to the separated intestines prevents adhesion of the abdominal organs. Attention should be paid during the operation: the abscess and the peritoneum are prone to abscess, which should be carefully removed to avoid the rupture of the abscess.
5.7 Ankle ring treatment is the key to the success of surgery. The author used the squeegee method or the resection method for scar tissue. The squeegee method is not complete and is not easy to perform on the scar tissue; the resection method completely destroys the scar tissue, and the recurrence rate of sputum is low. The small ring can be directly used for suturing the cigarette pack. When it is large, the double-layer intermittent horizontal button-like suture should be used to check whether the intestine is sewn or clamped before knotting.
5.8 The author uses intradermal sutured skin to help the recovery of the operation. There is no need to remove the suture of the skin after surgery, but this requires skilled suturing technique, and it is necessary to avoid sewing to the intestine during the suturing process.
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