Studies On Microbilogical Aerosol And Selection Of Disinfectant In Pig Houses

In this study, the samples of airborne microbes were in three swine houses of different structure and feed method and in the microbiological in the air inside the swine house of method (zhoudian swine farm, Du Jiazhuan swine farm, Zhou Shi swine farm), the advance side by side line qualities quantitative analyses (amounting to 648 samples). Using asepsis cotton posture and asepsis physiological saline togather the germ sample ( amounting to 216 samples) at ground and wall around disinfecting. At the same time, the belt returns the laboratory, with asepsis physiological saline being in progress diluting 10 times, then haves an inoculation on ordinary agar-agar and selectivity culture medium, carrying on the marks number analysis, the effect is assessed to disinfecting with this. The result is as follows:Andersens-6 classes air sampler is at mentioned above three pig farms sampling results Before baidujing are disinfected, needing oxygen fungus total serve as 2.67×103～ 2.16 ×105CFU /m3. The colon bacillus totals are 1.78×102～3.61×103CFU/m3. After disinfecting, the fungus needing the oxygen total is1.71×101～3.21×103CFU/m3, colon bacillus totals and serve as 2～4.56×102CFU/m3. 84 xiaoduye before disinfecting, and need oxygen fungus total to serve as1.59×103～2.17×105CFU/m3 colon bacillus totals and serve as9.8×101～4.06×103CFU/m3.After disinfecting, the fungus needing the oxygen total is1.01×101～4.62×103CFU/m3, colon bacillus totals and serve as 6～6.56×102CFU/m3. 2. The oxygen fungus total fungus serve as on 1×105～1.28×108CFU/cm2 wall need oxygen total to serve as2.36×105～1.28×107CFU/cm2 on the ground before baidujing are disinfected. After disinfection 5.1×103～6.93×107CFU/cm2,infecting, the fungus that the fungus needing the oxygen on ground total be on s wall the need oxygen total is 2.95×103～6.32×105CFU/cm2 84 disinfect liquid before disinfecting, and need the oxygen fungus total fungus serve as on 4.32×104～9.61×107CFU/cm2's wall need oxygen total to serve as 4.51×105～2.16×107CFU/cm2,on the ground. After disinfecting, the fungus that the fungus 9.85×102～8.64×106CFU/cm2,needing the oxygen on ground total be on 9.85×102～8.64×106CFU/cm2,'s wall the need oxygen total is. 1.24×105～2.28×107CFU/cm2.3.The aerodynamics indicates, they can have the aid of the air and flow, and entering the pulmonary alveolus of person poultry the aerodynamics equivalent of the particle diameter ( Dae50 ) in 0.65～2.1μm, some microbiological aerosols, and the poultry respiratory tract forms the potential threat infected to person. 4. Interior air sample and wall, Ground colon bacillus and needs the check out of oxygen fungus by way of to gives up prove three interactions, and periphery environment and wind-force, and the microorganism is presented for criticism of correction to be mutually related in the influence of wind direction, ground and the air, and the microorganism on explanation ground is an important source giving up the interior air microorganism. Sanitary good or bad is pledging to disinfect the important measure of effect to the explanation at the same time. This research result was described not the influence of the infectious disease of same's disinfectant to gas source, and makes a good job of giving up the importance of internal environment hygiene.