Diagnosis of Death Clostridium Perfringens Poisoning Cases in Beef Cattle
Clostridium perfringens is an important zoonotic pathogen,which often causes necrotizing enteritis,enterotoxemia and sudden death in various animals.Recently calves in a beef cattle farm in Kunming City,Yunnan Province suddenly had symptom include rapid breathing,abdominal pain,unsteady gait,obvious abdominal disten-sion,and then died.The main pathological changes of autopsy were pleural effusion,emphysema,mesenteric den-dritic hemorrhage,gastrointestinal contents paste and filled with a large amount of sour and odorous gases.The large intestine,small intestine and their contents of dead calves were collected,and the toxin was detected by a na-tional industry Standards for Entry Exit Inspection and Quarantine,the Detection of Clostridium per fringens toxins at frontier port(SN-T 2709-2010).The results showed that the alpha toxin gene,beta toxin gene and enterotox-in gene were all positive,and it was determined to be Clostridium perfringens C type.The diagnosis of this case suggests that there is a case of Clostridium perfringens type C infection in beef cattle in Yunnan Province,which provides a certain reference value for the beef cattle breeding industry,and advocates beef cattle farms to strengthen the prevention of Clostridium perfringens disease.
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