Autumn pig disease and its control technology

Eperythrozoonosis: "red skin" is characterized by its typical clinical symptoms as decreased sow performance, poor piglet physiology, anemia, and increased intestinal and respiratory infections. At the beginning of the disease, the pig's disease was weakened, and the body temperature increased to 39.5°C to 42°C. The body quavered or reluctantly stood, and the constipation or diarrhea occurred in the outlying areas. The pig's ears, neck, chest, lower abdomen, and inner parts of the extremities are red-violet, and the finger pressure does not fade, becoming a "red pig." There are many drugs for the treatment of this disease, but there are not many specific effects. Available blood worm net (Bernier), imidazole phenylurea, nevi following formula with tetracycline, oxytetracycline treatment. Streptococcus suis disease: secondary mixed infection often occurs after the pig has a cold. The body temperature of acutely sick pigs rises above 41°C, reduces food intake or food intake, causes conjunctival flushing and runny nose. Some of the pigs developed arthritis, limp, crawled, or unable to stand; some exhibited neurological symptoms such as ataxia, molars in the mouth, and others, and some had severe hyperemia or bleeding spots on the back of the neck. Piglets within 8 weeks of age often die within 2 days. Pigs with chronic diseases often have round, rose-colored, coin-like large papules on the skin of the head, chest, abdomen, and the inside of the femur. When infected with swine fever, there was a serous nasal fluid in the pig. There were purple or blue-purple bleeding points and bleeding spots at the tip of the ear, under the abdomen, at the ends of the extremities, and inside the strand. Sick male hunting can be seen inside the foreskin accumulation of urine, squeeze out of white, cloudy, foul smelling liquid. Constipated diarrhea or constipation and diarrhea occurred alternately in sick pigs. Breathing difficulties occurred in the later period and often died within 1 to 3 days. In recent years, Streptococcus suis has developed resistance to various antibiotics due to the confusion in the use of antibiotics, adding considerable difficulty to clinical treatment. However, if intramuscular injection of potent amoxicillin 15 mg/kg body weight, 2.5% enrofloxacin injection 2.5 mg/kg body weight once a day for 3 days, the condition will be effectively controlled. Toxoplasmosis: Toxoplasmosis in an old relapsed pig should be said to be an "old disease," which was difficult to see in clinical practice in the past few years, and it was even rarer to become epidemic. However, in recent years, local epidemics have been formed in many places and the damage is relatively great. Its clinical manifestations are influenza, and its body temperature rises to 40.5°C to 42°C. It can cause heat loss with respiratory failure, abdominal breathing, coughing, runny nose, limb and whole body muscle pain, stiffness, and the inner parts of the limbs and the abdomen are reddened on a large area under the skin. purple. Surface lymph nodes are swollen. Sulfamethoxy-6-methoxypyrimidine, sulfadiazine plus trimethoprim and other sulfa drugs are effective. Causes of morbidity 1. Improper feeding and management: For pigs raised in open or semi-open pig houses, the overheated environment at noon and the coolness of the night create a great contrast, easily stressing the pigs and disturbing the normal metabolism of the body. Poorly ventilated closed pig house, harmful gas is seriously exceeded. Adding moist air in the fall is more conducive to the breeding of pathogenic microorganisms and creates conditions for the outbreak of the disease. Corrupt spoilage feeds and yellow grasses accumulate pathogenic microorganisms. 2, mosquitoes, flies, cockroaches and other blood-sucking insects promote the occurrence and prevalence of swine disease. It is very common for farmers to raise pigs and pig houses without mosquito nets, flies and cockroaches. 3, artificial spread. For example, the flow of people, the grazing of pigs, and especially the sale of dead and dead pork on the market, spread the epidemic. Comprehensive measures 1. Strengthen feeding and management, pay attention to cooling at noon, and keep warm at night, especially to late autumn, and try to reduce the temperature difference. Do a good job in environmental sanitation and regularly disinfect the environment and utensils. 2, pay attention to eliminate blood-sucking insects. In addition to the use of drugs to drive, gauze is installed in piggeries to prevent bites from mosquitoes, flies and cockroaches, reducing the spread of the disease. Cats are banned in pig farms. 3, after the onset of the pig to identify the reasons for treatment as soon as possible. The dead pigs should be buried or incinerated. Swine Fever: Atypicalization is not the mainstream. Do not always think that the pigs will be fine when they have a vaccine. Poor quality of the vaccine, unreasonable immunization procedures, insufficient injection doses, or non-standard operations, even if the vaccine is used for the swine fever vaccine. However, the swine fever that has been seen clinically in recent years has been dominated by mildness and atypicality. The typical clinical symptoms and pathological changes of classical swine fever have disappeared. Therefore, misdiagnosis is very common. In general, if the sow has not been given a swine fever vaccine (single, double, or triple), the suckling piglets are likely to have unnamed fever, constipation, cyanosis, dirty water, and appetite. Late squat. When the sow hit the swine fever vaccine, piglets that have not been weaned will not develop swine fever. If the piglets have been vaccinated within six weeks after birth, they will be immune to maternal antibody interference and will be immune to change. They will grow to piglets and shelf pigs. When pigs are fattened, atypical swine fever may occur. Because there is no special treatment for swine fever, the only way is to use poison to attack the virus: Inject more than 10 times the amount of swine fever vaccine that is usually prevented, stimulate the body to produce interferon, interfere with the replication of swine fever virus, make it immune. Frequent immunizations in areas where piglets are commonly used: 1 piglet is injected before the first piglet's colostrum is fed, and then it is sucked after 3 hours; 2 exemptions during the double month's age: 50 days to 60 days 4 shots of the vaccine can be obtained for life Strong immunity. Flu: A minor illness should not be underestimated in late autumn or sudden temperature changes. In general, pig farmers believe that the swine flu is only a minor illness. There is no need to be overwhelmed. There is not a single or two needle for safety, and the problem is solved. In fact, after the pig gets the flu, it often becomes the "source of all diseases." In particular, symptoms such as elevated body temperature and cough will become precursors or inducements for many major diseases. If they are not controlled in time, they will cause incalculable losses. After the discovery, compound aminopyrine, analgin, etc. are generally used together with appropriate antibiotics to reduce the temperature and prevent secondary infection. Chinese medicine Yin Qiao San also has good results. China Agricultural Network Editor