Taian And Surrounding Areas Slaughter Pig Lung Health Assessment And Related Pathogenic Infection Investigation And Analysisea Virus

Porcine respiratory disease syndrome(PRDC)is the harm of the stable and healthy swine production factor,implement the pig almost the whole growth period,most of the pig farms are plagued with PRDC.Investigate its reason,not a single independent disease PRDC,pathogenic factor complex diverse,viruses,bacteria,mycoplasma,parasites,bad environment and management all can cause the generation of PRDC.Clinical especially in conservation and fattening stage in the production of pig disease,and multiple factors mixed feeling phenomenon more and more prominent,autopsy sick pigs have varying degrees of lung lesions,a serious threat to the pigs grow healthy,greatly reduces the feed efficiency and pig production efficiency at the same time,effective prevention and control and health pig industry to PRDC efficient production has brought great challenge.Autumn winter season is swine respiratory disease incidence season,to evaluate the season slaughter pig lung health,investigating swine respiratory health hazard of common diseases of the original infection status of health guidance pigs production and evaluation of slaughter pig food safety is of great significance.Pleuropneumonia actinobacillus(APP),deputy pigs haemophilus(HP),kill pasteurella(PM)is one of the most serious harm to pig lung health three kinds of pathogenic bacteria,they can infringe on each phase of the pig,sick pig performance similar respiratory symptoms,clinical diagnosis is difficult to effectively identify,lung lesions are often difficult to repair,which is formed by the market slaughter can find the existence of the lesions.In breeding of pigs in China exist the bacteria and porcine reproductive and respiratory syndrome virus(PRRSV)or type 2 pig ring(PCV2)mixed infection,under the synergy of a variety of viruses,bacteria,greatly increased the risk of PRDC and lung lesions,with improvements in recent years,variation of virulence of the virus and the increase of the limit of antibiotics use and bacterial drug resistance,make the pig PRDC control difficulty is rising year by year.To investigate taian slaughter pig lung health and surrounding areas,pleuropneumonia vice pig actinobacillus,haemophilus,kill pasteurella in lung infection status,as well as porcine reproductive and respiratory syndrome virus,swine type 2 rings of the proportion of mixed infection,taian and surrounding area clearly vice pig haemophilus popular superiority serotype,screening of three kinds of respiratory pathogenssensitive drug,especially for this topic research..In September 2016-January 2017,Yu Taian a pig slaughterhouse,selection of taian and surrounding areas of different types of pig 28,random sampling from different pig type 280 head of slaughter pig lung disease and lung tissue samples.After investigation found that qiu dong season in taian and surrounding areas slaughter pig lung has a very high detection rate of pathological changes,various types of lesions,and large-scale pig lung health is better than that of cage-free households or outsourcing piglet fattening pig farms.Pleuropneumonia actinobacillus,deputy pig haemophilus and kill pasteurella pathogen detection rate is not high,that such a hog is not three kinds of pathogenic bacteria mainly the days of age.Detection of porcine reproductive and respiratory syndrome virus,that the prevention and control of porcine reproductive and respiratory syndrome in the region level or better in such pig virus does not exist or content in lung tissue.Type 2 pig wreath virus detection rate is 37.5%,and mixed with three kinds of respiratory pathogens were infection,in pig pig virus type 2 ring is widespread and complicit in the respiratory tract in bacterial infections.There is no cross-infection between the three types of PRDC pathogens,suggesting that the three types of bacteria in the breeding pig often retain an advantageous bacterial infection status.Vice pig haemophilus separation strains are serum iv,explain taian and surrounding areas vice pig pig haemophilus popular serotype is given priority to with iv,conforms to our country current vice pig haemophilus popular superiority serotype.Drug sensitive test of three kinds of bacteria to cephalosporin thiamethoxam cefuroxime sodium,um,sensitive,gentamicin three kinds of drugs,the prevention and treatment of respiratory diseases,which are used in clinical fluorobenzene nicol,and doxycycline,broad-spectrum antibiotics produces a certain resistance to have vice pig haemophilus different strains of the same drug sensitivity differences,therefore,drug sensitive test of pig PRDC pathogens of effective prevention and control is very important.