In recent years, pigs on many swine farms have acute red, pink, and even purpuric rash on the skin, which is distinctly different from sputum dermatitis, allergic dermatitis, exudative dermatitis, and swine pox. The diseased pigs grow slowly, feed remuneration decreases, and mortality increases. This disease is known as swine dermatitis nephrotic syndrome, which occurs in hot summers and is distributed in other seasons. It is often mixed with other diseases such as eperythrozoonosis and streptococcal diseases.
Pigs with clinical symptoms of disease appear scattered spots on the skin papules, papules began to be red, the development of a round or irregular bulge, showing red, purple red lesions, and then from the central part of the black and gradually extended to the entire papules, lesions mainly occur On the back, buttocks and on both sides of the body, and can extend to the lower abdomen and forelimbs, and can cover all parts of the body severely. In pig farms with severe ectoparasite infections, the symptoms of the disease are relatively severe; individual pigs have fever, loss of appetite, gradual weight loss, shortness of breath, and even failure.
Pathological changes Main lesions usually occur in the skin and kidneys. Hemorrhagic enlargement of common lymph nodes, early swelling of the kidney, the appearance of khaki, renal cortical thin and fragile, solid texture in the late, renal capsule is more difficult to peel, renal parenchyma has different sizes, gray necrosis. Pericardial effusion, soft myocardium, pulmonary interstitial pneumonia, lobar pneumonia, and other lesions, individual pigs can see joint cavity bleeding.
The cause of the disease Pig dermatitis Nephrotic syndrome is a disease caused by porcine circovirus disease (PCV-II) and currently lacks effective vaccines to prevent PCV-II infection. In addition, the blue ear virus, pleuropneumoniae, streptococcus, etc. can cause the occurrence of dermatitis nephrotic syndrome. In recent years, the occurrence of dermatitis nephrotic syndrome has been associated with multiple systemic failure syndromes in weaned piglets.
When the mycotoxin in the feed has long-term intake of mycotoxins, the body's immune function and resistance are reduced, and the disease is also more likely to occur.
Stress factors The pig farms have poor feeding conditions, frequent swine herds and mixed groups, high pig herding density, excessively high humidity and temperature, and poor ventilation, all of which can increase the incidence rate.
Prevention and control measures for the prevention and treatment of this disease, there are many ways in the clinical, and has also achieved very good results. Now with the actual situation, it is briefly summarized from several aspects as follows:
Feeding and management: strengthen feeding management to minimize various stress factors. When weather is hot, weaning, immunization, piglet cutting, and swarm transfer, add more dimensions to drinking water to reduce stress and enhance body resistance, especially pay attention to Feed quality, vaccine immunity, temperature and humidity changes, etc.
In the aspect of environmental sanitation, environmental sanitation measures shall be strengthened, and alternate disinfection shall be conducted on a regular basis to strengthen the pig farm environment and pig house disinfection and anti-mosquito work. Pigs are kept in isolation from healthy pigs and reared and treated.
First, in terms of drug control, we must strengthen disinfection and use compound aldehydes, 100-toxic quaternary ammonium salts, organic chlorine, etc. to spray pig houses and diseased pigs once or twice a day for 7 days to 10 days. During the onset of disease, all piggeries and the surrounding environment should be sterilized. At least two kinds of disinfectants and two kinds of disinfection methods should be used for alternate disinfection to prevent pathogenic microorganisms from developing drug resistance.
Second, add antiviral I powder (2 bags/ton feed) + chlortetracycline 300PPM + water-soluble amoxicillin 250PPM to the feed and use it for mixed feed for 10 days to 15 days. At the same time, do a good job of pig deworming. Albendazole or fenbendazole was added to feed to control the occurrence of parasitic diseases.
Third, in pigs with severe symptoms, it may be recommended to use potent amoxicillin + Qingkailing injection + Houttuynia injection + dexamethasone, mixed intramuscularly, once a day for 3 consecutive days, on the skin of affected pigs. Spots will gradually disappear, and long-acting terramycin, long-acting ceftiofur and other secondary infections will be controlled, and this disease can be effectively controlled.
Pigs with clinical symptoms of disease appear scattered spots on the skin papules, papules began to be red, the development of a round or irregular bulge, showing red, purple red lesions, and then from the central part of the black and gradually extended to the entire papules, lesions mainly occur On the back, buttocks and on both sides of the body, and can extend to the lower abdomen and forelimbs, and can cover all parts of the body severely. In pig farms with severe ectoparasite infections, the symptoms of the disease are relatively severe; individual pigs have fever, loss of appetite, gradual weight loss, shortness of breath, and even failure.
Pathological changes Main lesions usually occur in the skin and kidneys. Hemorrhagic enlargement of common lymph nodes, early swelling of the kidney, the appearance of khaki, renal cortical thin and fragile, solid texture in the late, renal capsule is more difficult to peel, renal parenchyma has different sizes, gray necrosis. Pericardial effusion, soft myocardium, pulmonary interstitial pneumonia, lobar pneumonia, and other lesions, individual pigs can see joint cavity bleeding.
The cause of the disease Pig dermatitis Nephrotic syndrome is a disease caused by porcine circovirus disease (PCV-II) and currently lacks effective vaccines to prevent PCV-II infection. In addition, the blue ear virus, pleuropneumoniae, streptococcus, etc. can cause the occurrence of dermatitis nephrotic syndrome. In recent years, the occurrence of dermatitis nephrotic syndrome has been associated with multiple systemic failure syndromes in weaned piglets.
When the mycotoxin in the feed has long-term intake of mycotoxins, the body's immune function and resistance are reduced, and the disease is also more likely to occur.
Stress factors The pig farms have poor feeding conditions, frequent swine herds and mixed groups, high pig herding density, excessively high humidity and temperature, and poor ventilation, all of which can increase the incidence rate.
Prevention and control measures for the prevention and treatment of this disease, there are many ways in the clinical, and has also achieved very good results. Now with the actual situation, it is briefly summarized from several aspects as follows:
Feeding and management: strengthen feeding management to minimize various stress factors. When weather is hot, weaning, immunization, piglet cutting, and swarm transfer, add more dimensions to drinking water to reduce stress and enhance body resistance, especially pay attention to Feed quality, vaccine immunity, temperature and humidity changes, etc.
In the aspect of environmental sanitation, environmental sanitation measures shall be strengthened, and alternate disinfection shall be conducted on a regular basis to strengthen the pig farm environment and pig house disinfection and anti-mosquito work. Pigs are kept in isolation from healthy pigs and reared and treated.
First, in terms of drug control, we must strengthen disinfection and use compound aldehydes, 100-toxic quaternary ammonium salts, organic chlorine, etc. to spray pig houses and diseased pigs once or twice a day for 7 days to 10 days. During the onset of disease, all piggeries and the surrounding environment should be sterilized. At least two kinds of disinfectants and two kinds of disinfection methods should be used for alternate disinfection to prevent pathogenic microorganisms from developing drug resistance.
Second, add antiviral I powder (2 bags/ton feed) + chlortetracycline 300PPM + water-soluble amoxicillin 250PPM to the feed and use it for mixed feed for 10 days to 15 days. At the same time, do a good job of pig deworming. Albendazole or fenbendazole was added to feed to control the occurrence of parasitic diseases.
Third, in pigs with severe symptoms, it may be recommended to use potent amoxicillin + Qingkailing injection + Houttuynia injection + dexamethasone, mixed intramuscularly, once a day for 3 consecutive days, on the skin of affected pigs. Spots will gradually disappear, and long-acting terramycin, long-acting ceftiofur and other secondary infections will be controlled, and this disease can be effectively controlled.
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