1.1 hemagglutinating encephalomyelitis (REV) a, encephalitis type B. Vomiting and failure type1.2 gastroenteritis is a highly transmissible gastroenteritis virus contact transmission of sexually transmitted diseases, in order to cause the following 2 weeks of age piglets vomiting, severe diarrhea and is characterized by high mortality rates. although the different ages of pigs are sensitive to this virus, but more than 5 weeks of age mortality rate is very low pig. Characteristics of the disease with high mortality of newborn piglets, no practical and effective treatment, winter, spring, particularly in autumn and winter, winter and spring seasonal, the weather changes unexpectedly when prone. Typical symptoms are short-term piglets vomiting, yellow watery diarrhea, faecal material can often contain a curd block, evil smell, growing pigs showed anorexia, diarrhea for several days, accompanied by vomiting.
1.3 epidemic diarrhea porcine epidemic diarrhea is caused by a virus, a kind of vomiting, diarrhea diseases characterized. Piglet and Jia Zizhu obvious symptoms, vomiting first, followed by severe diarrhea, fecal samples diluted water, grayish yellow or gray and have small bubbles. Pigs apparent dehydration, weight loss faster. Piglets incomplete digestion stomach full of milk clot, the greater curvature mucosa of loss and ulcers.
1.4 pigs of all ages can pseudorabies disease, the more serious young pigs, pigs exhibited moderate frequency of vomiting, the main violations of the nervous system, pigs difficulty breathing, salivation, diarrhea, tremor, central nervous system symptoms of epilepsy seizures. Sow occasional nausea, vomiting, diarrhea and other symptoms.
1.5 pig rotavirus enteritis breastfeeding was rare, and vomiting symptoms, mainly against gastrointestinal tract, watery diarrhea in pigs, sows usually asymptomatic.
1.6 pigs of all ages can be incidence of classical swine fever, pigs can be seen with moderate frequency of vomiting, severe systemic disease, in addition to vomiting outside the pigs are drowsiness, visual mucosal cyanosis, fever, diarrhea, bleeding and other symptoms. Symptoms of sows and piglets similar symptoms.
2. Weaned pigs and adult pigs caused by vomiting disease2.1 transmissible gastroenteritis in piglets caused by the following 2 weeks of age, vomiting, severe diarrhea and is characterized by high mortality rates.
2.2 epidemic diarrhea virus, porcine epidemic diarrhea caused by a kind of vomiting, diarrhea diseases characterized. Gastrointestinal mucosa by the necropsy were found to significantly catarrhal inflammation of the small intestine containing yellow or gray-green feces, intestinal relaxation, thin, mesenteric lymph node swelling.
2.3 pigs of all ages can pseudorabies disease, the young pig is more serious and occasionally vomiting symptoms, mainly against the nervous system, feeding pigs showed symptoms of central nervous system of adult pigs sneeze, cough, anorexia, constipation, Occasionally, neurological symptoms, pregnancy may be aborted sows.
2.4 nursing pig rotavirus enteritis, especially in post-weaning pigs often made. Occasionally vomiting symptoms, mainly against gastrointestinal tract, breast-feeding pig diarrhea, dehydration, usually without clinical manifestations of adult pigs. Porcine rotavirus infection by the rotavirus outbreak of gastrointestinal functional disorders piglets an acute infectious disease clinic with vomiting, diarrhea, dehydration and acid-base balance disorder characterized.
2.5 pigs of all ages can be incidence of classical swine fever, pigs can be seen with moderate frequency of vomiting, severe systemic disease, in addition to vomiting outside the pigs are lethargy, hair-dimensional visualization mucosa, fever, diarrhea, bleeding and other symptoms. Symptoms of sows and piglets similar symptoms.
2.6 most acute Actinobacillus pleuropneumoniae disease: pigs of all ages can occur, but the outbreak is common in finishing pigs. Occasionally vomiting symptoms, mainly against the respiratory system, pigs also showed difficulty in breathing, coughing, bloody nose and mouth out of the liquid, given the symptoms.
2.7 anthracis: anthrax and intestinal anthrax type pharynx seen with moderate frequency, or frequent vomiting, pigs and more for the systemic disease, pharyngeal anthrax showed type neck swelling, difficulty breathing, intestinal anthrax performance as anorexia, blood diarrhea.
2.8 class round worm disease: Pigs weaned pigs to regular hair, and occasionally vomiting symptoms, mainly against gastrointestinal tract, pigs have diarrhea, rapid weight loss, anorexia, anemia and other manifestations. Disease of the piglets most damaging, especially 3 to 4 weeks old piglets. Occurred mainly in the warm rainy season, is one of the reasons piglet diarrhea. Pigs vomiting, enteritis and diarrhea occur, then weight loss. If the larvae through the skin infection, often caused by eczema; into the lungs, the cause bronchitis, pneumonia, fever; if moved into cardiac muscle, brain and spinal cord, may occur in acute death, serious due to extreme weakness and death.
2.9 finishing pigs and adult pig gastric ulcer often made, occasional vomiting, the disease predominantly affects the gastrointestinal tract, breast-feeding pigs without the disease, the pigs have anemia, tar-like feces, teeth, weight loss, such as performance. Symptoms include anorexia, abdominal discomfort, abnormal bowel movement leading to constipation or diarrhea, and some cases of stomach bleeding and melena psychosis. the disease was initially a little stomach bleeding, only the performance of indigestion, often difficult to detect.
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