How to prevent and treat Pig Respiratory Diseases

4. Swine influenza

Swine influenza SI is a highly contagious respiratory disease of pigs characterized by rapid onset, sudden onset of fever and other cold symptoms, and recovery as fast as onset. SI is caused by an influenza virus of the same sex as influenza viruses that infect humans. This virus has the characteristics of co-infection between humans and animals. SI in pig herds is usually associated with the introduction of new pigs into pig farms.

1) Symptoms:

A typical SI would involve a sudden severe illness of the entire herd. Within one or two days, almost all pigs began to cough, nose, breathing difficulties, eye and nose secretions and fever. The whole herd may refuse to feed at this stage. The animal spends most of its time lying down or refusing to move. The animal was severely ill, but the symptoms disappeared quickly. Almost all pigs were able to stand and feed on the seventh day. The mortality rate is very low, unless there is a concurrent bacterial infection. Similar colds may also occur in pig farm workers when SI occurs.

2) Diagnosis:

If the typical SI symptoms described above are present, it is suspected that the herd has been infected with the disease. At the same time, pig farm workers may also have similar colds, but this is not absolute. The diagnosis of SI requires serological testing.

Treatment SI There are no specific therapeutic drugs available. Supportive therapy is recommended to alleviate the suffering of sick pigs. Antibiotics may be used to control bacterial infections, and antipyretics may help. Clean drinking water is essential at all times during illness. Pig farm workers should be on guard against the spread of the disease. Pigs can also catch influenza from humans.

5. Pig lung disease

Swine pulmonary disease, also known as swine hemorrhagic septicemia or pasteurellosis, is caused by Pasteurella multocida. The disease is sporadic, occasionally endemic, often occurring in humid and rainy seasons. Bacteria-carrying phenomenon is common in pigs, and its occurrence is closely related to environmental conditions and feeding management. When the environment is bad, poor feeding, pig resistance can be induced when the disease of infection and disease.

1) Symptoms:

The most acute and acute manifestations are sepsis and pleuropneumonia. The pig suffered from neck redness, dyspnea, cyanosis of mucosa and skin, temperature 41-42 ℃, course of disease 1-2 days. Chronic type see persistent cough, dyspnea, purulent nasal discharge, emaciation, exhaustion.

(2) Pathological changes:

Acute swine pneumonia manifests as unilateral or bilateral fibrotic pneumonia. Lung enlargement, firm, dark red or grayish yellow hepatoid lesions. The lung surface, pleura and epicardium are covered with cellulose. At the same time, the whole body sticky, serosa has punctate bleeding, head and neck lymph node congestion, bleeding, redness. Chronic type, pneumonia focus center necrosis, suppuration and fibrosis, and pleural and pericardial fibrous adhesion.

(3) Control:

This disease can be treated with Bailiduo or Sha Sulfonate Tablets, with good results. Immunization with inactivated vaccine or attenuated vaccine, together with improvement of environment and feeding conditions, can prevent the disease.