Prevention and Control of non-communicable Fever in Pigs

1. Nameless high fever of unknown high fever pig is a kind of fever syndrome characterized by unknown cause, sudden fever, high fever (body temperature up to 40 ℃ ~ 42 ℃), red skin or erythema, hard black feces, little color yellow urine, commonly known as "red radish disease, erythema". The disease can occur all the year round, and the antipyretic effect of antibiotics and sulfonamides is very poor or even ineffective.

1. Fever can be caused by a variety of causes, which can be divided into pyrogen fever and non-pyrogen fever. Pyrogen fever is caused by bacteria, viruses, some parasites and proteins, chemical substances, necrotic tissue disintegration products, antiplasma complexes formed in allergy and other sources of fever. Non-pyrogen fever is mostly caused by central nervous system injury, endocrine dysfunction and other heat sources. The clinical so-called nameless high fever is generally non-contagious, therefore, it can be considered to be mainly non-infectious fever and non-pyrogen fever. Clinically, due to the unknown cause of some febrile diseases, it is collectively referred to as "unknown high fever".

two。 Symptoms of sudden onset, sick pigs generally loss of appetite or abstinence, mental fatigue, body temperature as high as 40 ℃ or more, skin red, some erythema, muscle trembling; some have eye stool, conjunctival flushing, tears; some breath rough, cough; some nasal disc dry, nostril serous secretion; some feces dry hard black and white mucus or intestinal mucosa, less yellow urine. Sick pigs like to eat sludge and drink sewage. Although the initial use of antipyretic drugs, antibiotics treatment has a certain effect, but not consolidated, and soon the body temperature continues to rise, the general course of disease is one or two weeks.

3. The diagnosis should be different from heatstroke and high fever, damp-heat syndrome and so on. Heatstroke fever has neurological symptoms such as delirium and mania, while damp heat has no redness of the skin or diarrhea.

4. The disease should be treated with Bingfeng plus Houttuynia cordata, andrographis paniculata or Yandureke plus Radix Isatidis, Bupleurum and other agents mixed intramuscular injection or alternating intramuscular injection.

Second, dampness with high heat and dampness is a common disease characterized by high fever and lingering, which often occurs in the hot seasons of summer and autumn.

1. During the high temperature period in summer and autumn, there are no heat prevention facilities in pig houses, high pig density, poor ventilation, damp and muggy, or pigs lying in wetlands for a long time or even sudden rain, etc., are prone to damp-heat and high fever.

two。 Symptoms of sick pigs fever, body temperature generally rise to about 40 ℃, higher in the afternoon, less sweaty nose, mental fatigue, some cold limbs, lying more standing less; feces sticky or slightly dry, some diarrhea, vomiting and pain and other symptoms.

3. In order to prevent and cure the high temperature season, we should pay attention to keep the fence house dry and well ventilated to avoid direct sunlight and rain. Bingfeng, vitamin C, andrographis paniculata or Yandureke, Houttuynia cordata injection mixed intramuscular injection or alternating intramuscular injection can be used for sick pigs.

Heatstroke is the general name of solar radiation disease and heat radiation disease. it is a disease characterized by acute hyperthermia caused by increased heat production or reduced heat dissipation. It is caused by small pig houses, overcrowded pigs, high external temperature, excessive relative humidity, lack of drinking water and so on. The main symptoms are: weakness of limbs, unstable gait, dry skin, elevated body temperature, shortness of breath, rapid heartbeat, mania, and severe cases eventually fell to the ground in a coma and died of spasm.

Treatment measures: first, transfer the diseased pig to a cool and ventilated place, and bleed from the tip of the ear and tail (commonly known as "releasing sha"); then inject Anna to strengthen the heart; treat dehydration with sugar saline, add chlorpromazine to reduce temperature and irritability; use dexamethasone to prevent pulmonary edema. Author's unit: government of Yankoupu Town, Shaoyang County, Hunan Province