What medicine is best for swine infectious gastroenteritis?

Porcine transmissible gastroenteritis is a highly contagious disease caused by virus infection in pigs. Pigs with poor feeding management conditions and high feeding density are prone to outbreak in cold seasons. The mortality rate is high, and the mortality rate of piglets can reach 100%. The incubation period of the disease is generally 12 ~ 18 hours.

The main characteristics of sick pigs are severe watery diarrhea in the whole group, generally low body temperature, slightly reduced food intake, sometimes accompanied by vomiting symptoms, and often die of dehydration.

Autopsy showed dehydration, conjunctival pallor, cyanosis, catarrhal inflammation of gastrointestinal tract, submucosal hemorrhage, white curd in stomach, mild congestion of gastric mucosa, white or yellow-green semi-liquid or liquid in intestine.

The mortality rate of yellow dysentery and red dysentery in piglets is also high, which should be distinguished from this disease. Because piglet yellow dysentery will not infect big pigs, and drugs such as lactase are effective, it can be identified. Piglet red dysentery is sporadic, only a few piglets occur, and other big pigs do not have diarrhea, which is characterized by bloody stool and hemorrhagic enteritis.

[Preventive and Control Measures]

(1) At present, there is no specific medicine for this disease, and only symptomatic treatment is available. Use broad-spectrum antibiotics to prevent secondary infection and concurrent infection. The first choice is kanamycin sulfate. A sick pig weighs about 1.5 kg, and each pig is injected with 500,000 ~ 1 10,000 international units each time.

In order to inhibit intestinal peristalsis and stop diarrhea, atropine can be injected into each muscle of sick pigs weighing about 15 kg, each time 10 ~ 20 mg.

For seriously ill pigs, Avastin solution 50 ~ 200ml, or 50 ~ 10% glucose solution, 150ml vitamin C+00 ~ 20ml and 10ml caffeine sodium can be mixed and injected intravenously or intraperitoneally.

(2) Prevention is mainly to do a good job in feeding management, especially in the cold season, pay attention to cold and warmth, and prevent the feeding density from being too high. About 45 days before delivery and 15 days, pregnant sows can be inoculated with 1 ml attenuated vaccine in muscle and nasal cavity respectively, or directly inoculated with 3-day-old suckling piglets.