contagious pleuropneumonia in pigs is also called haemophilus parahaemolyticus, or haemophilus pleuropneumoniae. it is a respiratory infection. pigs of different age have susceptibility to death at the age of 5~7 months. the causative agent is haemophilus pleuropneumoniae, mainly in the respiratory tract mucosa. spread through airborne droplets, which are most susceptible to contact in a large population of intensively reared animals. the incidence and mortality of onset of pigs were higher, lower mortality and old epidemic disease.
acute disease disease at the beginning of the body temperature rises to 41.5 degrees centigrade, and do not eat, and difficulty breathing, mouth shenshe, often standing or sitting dog, and out of foam like secretions, ear, nose and limbs are blue purple, if not timely treatment, often within 1 ~ 2 days choked to death. symptomatic relief pigs, after 4 days of resistance, can gradually recover or turn to chronic. chronic disease pig body temperature is not high, there is intermittent cough, growth retardation.
the pathological changes of acute death cases, pneumonia is bilateral, part often occurs in the leaves, leaf tip and leaf diaphragm. the focus of the lesion is clear, the pneumonia area is purplish red, the section looks like the liver, and the stroma is full of bloody jelly like liquid. the surface area of cellulose and pleural pneumonia attachments, intrathoracic bloody turbid liquid. in chronic cases with a longer course of disease, the focus of pneumonia becomes induration or necrosis, surrounded by connective tissue, and the surface of the lung is adherent to the chest wall. these chronically ill pigs often fail to see symptoms.
the main measure of prevention and cure is once the blood disease occurs in the pig. the common herd quarantine, elimination of positive pigs; while improving environmental sanitation, eliminating stress factors with junduging iodine or 2% caustic soda water is disinfected two times weekly, can receive a good result.
early treatment is the key to the treatment of the disease. bloodthirsty kang force available or by using intramuscular injection of polyclonal antibody, called asthma legend, the other side of the blue circle injection speed kang of invincible (mixed); intramuscular injection at the same time, can be odd, adding high fluorine free double row toxin, coptis extract and other drugs in the feed, can control the occurrence of this disease. |
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