1.2 this disease only infects pigs, and pigs of different ages and sexes can be infected, and once infected, it is difficult to eradicate.
1.3 symptoms. Acute type; The sick pig suddenly has difficulty breathing, gasping, drooping head and normal body temperature, and stands in the corner or on the ground like a dog, without eating or drinking, only drinking a small amount of water. Chronic type: long-term cough, asthma, short and few initial dry cough, especially in the morning, evening, after exercise and after eating. The sick pig coughed, stood still, hunched his back, stretched out his neck and hung his head until he coughed up phlegm and swallowed it. The obvious abdominal breathing is more obvious when they are quiet, but their body temperature is still normal. Patients with a long course of disease have the same defecation and body temperature, rough and dull fur, stagnant development and emaciation, and hunchback can reach more than 1 month.
2 prevention
2. 1 Pre-onset measures. (1) Insist on autotrophic. If it is necessary to introduce, it is necessary to know the epidemic situation in the place of origin, and it can only be introduced if no epidemic situation is found. ② Strengthen feeding management and health and epidemic prevention system. Strict disinfection and isolation, pay attention to the living conditions of pigs, and isolate or eliminate abnormalities in time. ③ Drug prevention. Add 80- 1 10 mg/kg of beirifamycin or 1% of soil alkali to the feed.
2.2 Measures taken in the affected areas. ① Establish a healthy isolation belt with recycled pigs, so that sows do not meet and piglets do not turn around. ② Pigs with no obvious symptoms can be treated for 1-2 courses of treatment, and can only be raised after being born and weaned. ② Pigs with obvious symptoms should be strictly isolated and treated, and then fattened.
2.3 Strengthen immunization. ① According to the nature of the vaccine, intramuscular injection, intratracheal injection or intrapulmonary injection can be used. 2 applicants. It is best to inoculate exotic varieties or hybrid varieties. (3) There is no recovery time. The age of the first immunization is 7- 15 days, and the age of the second immunization is 1 month. Antibacterials were prohibited before and after vaccination 1 week.
3 treatment
3. 1 tetracyclines. The disease is sensitive to mycoplasma, and oxytetracycline hydrochloride is commonly used, and 50 mg is injected into muscle per kilogram of body weight. Double the dose for the first time, once a day 1 time, for 5-7 days, or seed dressing with soil alkali, 20-40mg per kg.
3.2 Kanamycin. Intramuscular injection or intratracheal injection, 40000-50000 units per kilogram of body weight.
3.3 original network. 20g of raw net is added into each100kg of material and stirred evenly for 2 weeks.
3.4 tylosin. Intramuscular injection 10 mg per kg body weight. 65438+ 0 times a day for 3-5 days.
3.5 Lincomycin. Intramuscular injection of 50 mg per kilogram of body weight. Every day 1 time for 5-7 days.