Prevention and treatment of sudden acute sheep fast epidemic with short course of true gastric bleeding

Sheep fast epidemic is an acute infectious disease of sheep, which is characterized by sudden onset, short course of disease, true stomach bleeding and inflammatory damage.

Sheep

Pathogen: the pathogen of sheep fast epidemic is Clostridium putrefaciens, which is Gram positive and can produce many kinds of mycin. Spores can be produced both in vivo and in vitro, but no capsule is formed. Use powerful disinfectants such as 20% bleach, 3-5% sodium hydroxide, etc.

Epidemic characteristics: most of the diseased sheep are 6-18 months old sheep with good nutrition, and there are few goats. Most of them occur in spring and autumn. After eating contaminated feed or drinking water, sheep can induce the disease when they encounter external adverse causes such as sudden climate change, continuous rain, parasites in the body and so on. It is mainly sporadic with low morbidity and high mortality.

Symptoms: a, the most acute type. The incubation period is not yet clear, sick sheep suddenly stop feeding, ruminating, grinding teeth, abdominal pain, moaning, limbs separated, hindquarters swaying, difficulty breathing, mouth and nose with foam fluid. He fell to the ground with convulsions, swam his limbs and died within 2-6 hours. B, acute type. At the beginning of the disease, loss of energy, loss of appetite, unstable walking, difficulty in defecation, lying on the floor, abdominal swelling, shortness of breath, conjunctival congestion, moaning and salivation. There are inflammatory substances or mucous membranes in sheep feces, showing dark green. His body temperature rose to more than 40 ℃, had difficulty breathing and died soon after.

Prevention: the course of the disease is short and there is no time for treatment. Therefore, epidemic prevention measures should be strengthened in peacetime. When the disease occurs, the diseased sheep are isolated, and the diseased sheep with a long course of disease are treated with symptomatic treatment. When the occurrence is serious, the transfer of pastoral land can reduce or suspend the disease. Therefore, sheep without disease should be transferred to high-dry areas to strengthen feeding management to prevent cold and cold. In order to prevent sheep from eating frozen feed, go out for grazing in the morning, not too early. Emergency vaccination. In the areas where the disease occurs frequently, sheep are regularly injected with "sheep fast plague, sudden gangrene, enterotoxemia triple vaccine", or "sheep rapid plague, sudden gangrene, enterotoxemia, lamb dysentery, black plague vaccine" every year.

Treatment: sick sheep often die because of untimely treatment. Sheep with a long course of disease can be treated. A, penicillin, intramuscular injection, 80-1.6 million units per time, twice a day; b, sulfadiazine, 5-6 grams per kg body weight, 3-4 times; c, 10-20% lime milk, 5-100ml, 1-2 times; d, compound sulfadiazine sodium injection, intramuscular injection, 0.015-0.02g per kg body weight (in terms of sulfadiazine), twice a day E, sulfonamidine, 8-12 grams per kg body weight, once on the first day and twice on the second day.