This year, area of our country southern part the pig that in high temperature tall wet season produces infection of a variety of cause of disease and afterwards hair infection to cause " high fever is ill " , this are ill in order to give out heat, do not feed, the skin is main feature with symptom of occurrence respiratory tract aglow. Since September, this " high fever is ill " in the whole nation many places also have happen, provisions hog production caused huge pecuniary loss. We prevent and cure through undertaking be diagnosticed integratedly to many pig farm, be as follows ill to this preliminary diagnostic report now:

Clinical symptom: This ill main symptom is swinery comes on suddenly, body temperature rise comes high 40 ℃ above, mental depressed, collect appetite to drop or appetite is abandoned absolutely, dung works, make water is yellow, breath is difficult, be fond of Fu Wo, skin sufferring from a pig is aglow, ear ministry cyanosis, the abdomen falls and the body such as limb end is in the skin to show amaranth more, some skins behave the haemorrhage that order state, later period has nose liquid or bleed. Come on swinery mortality is taller, young pig is more serious, it is 10% ～ commonly 30% , tall can amount to 50% above, partial sow is pregnant later period occurrence abortion, produce stillborn foetus, young son. This disease course of disease is long, after high fever subsidise, constant expression is not fed or neurosis shape.

Analyse check symptom: Pathological changes of check of analyse of pig of die in one's bed shows diversity. Pathology changes in order to breathe an organ most serious, nose, pharynx, larynx, tracheal congest with bronchus mucous membrane. Sticky pus appearance is full of inside small bronchus and fine bronchus oozy fluid, lung shows wine fact to change, color by red arrive violet, hard fact, sometimes thorax accumulating has size or cellulose sex size. Intumescent or liver wine is the yellow that show native, simple fragile, outspread or gallbladder is atrophic, biliary and ropy. Splenomegaly, the face is familiar papula of massive haemorrhage of grain of rice, sometimes the brim sees dead kitchen of haemorrhage sex stalk. Hyperaemia of systemic lymph node, oedema, tangent plane evaginate, the lymph node of whole body of case of illness of be in a bad way is common haemorrhage sex inflammation, especially lymph node of thin film of cervical, lung and bowel. Sex of catarrh of mucous membrane of stomach, bowel or inflammation of sex of haemorrhage sex catarrh, among them gastric bottom is most apparent, the valve that answer blind, colonic, caecum and stomach from time to tome ulcer. Kidney Yu blood, intumescent, sometimes common haemorrhage dot, bladder accumulates make water, make water shows palm yellow. Meninx congests, cerebral oedema.
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