Kev tsom xam ntawm qhov ua rau mob tuag nyob rau hauv ib tug sow

Clinically, feem ntau cov kab mob uas tuaj yeem ua rau tuag taus hauv cov qoob loo muaj xws li African swine fever, classical swine fever, mob plab hnyuv loj (perforation), mob kab mob septicemia (xws li B-type Clostridium novyi, erysipelas), thiab tshaj qhov txwv ntawm pwm. co toxins hauv pub. Tsis tas li ntawd, cov kab mob urinary nyob rau hauv cov noob qoob loo los ntawm Streptococcus suis tuaj yeem ua rau tuag taus.

Tus po yog ib qho tseem ceeb ntawm lub cev tiv thaiv kab mob hauv nruab nrog cev koom nrog hauv kev tiv thaiv kab mob thiab kev lim ntshav, ua haujlwm tseem ceeb hauv kev sib ntaus sib tua hauv lub cev tiv thaiv kab mob. Yog li ntawd, thaum lub sij hawm kev kis kab mob los ntawm cov kab mob, tus po tshwm sim heev tshwm sim. Tus mob spleenitis, qhov uas tus po yog ob peb zaug loj dua li ib txwm, tuaj yeem tshwm sim los ntawm cov kab mob xws li African swine fever, classical swine fever, thiab mob septicemia (uas tuaj yeem cuam tshuam ntau yam kab mob xws li streptococci thiab Clostridium novyi). Raws li tag nrho cov kev hloov pauv pathological hauv tus po, peb tsom mus rau African swine fever, classical swine fever, thiab kab mob septicemia hauv npua. Porcine circovirus thiab porcine reproductive and respiratory syndrome virus feem ntau tsis tsim kom ntseeg tau tag nrho cov kev hloov pauv hauv tus po; circovirus feem ntau ua rau granulomatous splenitis, uas yog pom tau tsuas yog nyob rau hauv lub tshuab tsom.

Gastric ulcer yog hais txog mob plab hnyuv thiab plab los ntshav ua rau cov nqaij mos hauv zos yaig, necrosis, los yog autodigestion ntawm gastric mucosa, uas ua rau cov kab mob ulcerative los yog gastric perforation. Ua ntej tuaj txog ntawm African swine fever, gastric ulcers yog qhov ua rau tuag hauv Suav sows. Nws yog ib qho tseem ceeb uas cov kab mob plab nyob ze ntawm txoj hlab pas los yog pylorus muaj qhov tseem ceeb rau kev kuaj mob, thaum cov kab mob hauv lwm qhov ntawm lub plab tsis ua. Nyob rau hauv daim duab, tsis muaj ulcerative lesions pom nyob rau hauv lub plab, li no gastric ulcer yuav txiav txim tawm raws li qhov ua rau mob tuag nyob rau hauv sows.

Daim duab sab laug qhia tau hais tias daim siab nqaij. Lub siab zoo nkaus li lobulated, muaj ntau yam me me pores zoo li cov qauv foamy. Foamy daim siab mob yog cov yam ntxwv anatomical hloov los ntawm Clostridium novyi kab mob hauv npua. Nws yog ib qho nyuaj rau kev txheeb xyuas yuav ua li cas Clostridium novyi retrogrades kom ncav cuag lub siab thiab ua rau lub siab puas.

Los ntawm molecular biology, peb tuaj yeem tshem tawm African swine fever thiab classical swine fever. Cov kab mob uas tuaj yeem ua rau tuag taus hauv cov noob muaj xws li erysipelas, Actinobacillus pleuropneumoniae, thiab Clostridium novyi. Txawm li cas los xij, cov kab mob kab mob kuj muaj qhov sib txawv ntawm qhov ntxeem tau thiab cov yam ntxwv puas tsuaj; Piv txwv li, Actinobacillus pleuropneumoniae tsis tsuas yog ua rau mob splenitis, tab sis tseem ceeb tshaj, necrotizing hemorrhagic pneumonia. Streptococcus suis ua rau cov tawv nqaij tawv heev. Tag nrho cov pathology ntawm daim siab qhia ib qho kev taw qhia tshwj xeeb; foamy daim siab feem ntau yog ib tug yam ntxwv lesion ntawm Clostridium novyi nyob rau hauv npua. Kev tshuaj xyuas microscopic ntxiv tau lees paub Clostridium novyi ua qhov ua rau mob hnyav tuag hauv cov noob qoob loo. Kev txheeb xyuas kab lis kev cai kab lis kev cai tau lees paub Clostridium novyi.

Hauv qhov no, ntau txoj hauv kev tuaj yeem siv tau yooj yim, xws li daim siab smears. Feem ntau, tsis muaj kab mob yuav tsum pom hauv daim siab. Thaum pom cov kab mob, thiab cov kab mob anatomical xws li foamy siab zoo li hloov pauv tau pom, nws tuaj yeem suav tias yog kab mob clostridial. Kev txheeb xyuas ntxiv tuaj yeem ua tiav los ntawm HE staining ntawm daim siab cov ntaub so ntswg, nthuav tawm ntau cov kab mob zoo li tus pas nrig. Kab lis kev cai tsis tsim nyog vim Clostridium novyi yog ib qho kab mob nyuaj tshaj plaws rau kab lis kev cai.

Kev nkag siab txog qhov kev puas tsuaj tshwj xeeb thiab qhov chaw ntawm txhua tus kab mob yog qhov tseem ceeb. Piv txwv li, tus kab mob porcine kab mob raws plab feem ntau tawm tsam cov kab mob epithelial ntawm txoj hnyuv me, thiab kev puas tsuaj rau lwm yam kabmob xws li lub ntsws, lub plawv, lossis daim siab tsis nyob hauv nws txoj haujlwm. Cov kab mob ntxeem tau nyob ntawm txoj hauv kev tshwj xeeb; Piv txwv li, Clostridium tetani tsuas tuaj yeem kis tau los ntawm cov kab mob sib kis nrog cov kab mob necrotic lossis suppurative hloov pauv, thaum lwm txoj hauv kev tsis ua rau kis kab mob. Cov kab mob Actinobacillus pleuropneumoniae feem ntau tshwm sim hauv npua teb nrog mob khaub thuas thiab pseudo-rabies, vim tias cov kab mob no yooj yim ua rau cov kab mob tracheal epithelial, ua rau nws yooj yim dua rau Actinobacillus pleuropneumoniae nkag mus rau hauv alveoli. Cov kws kho tsiaj yuav tsum nkag siab txog cov yam ntxwv tshwj xeeb ntawm kev puas tsuaj ntawm lub cev ntawm txhua tus kab mob thiab tom qab ntawd muab cov txheej txheem kuaj sim xws li molecular biology thiab microbiology rau kev kuaj mob kom raug.