摘要
采用４ 台 Ａ Ｎ Ｄ Ｅ Ｒ Ｓ Ｅ Ｎ微生物空气样品收集器对一个犊牛舍内及环境空气细菌含量进行了测量， 需氧菌总数分别为８５３６ ～４６６９１ Ｃ Ｆ Ｕ／ｍ ３ 和２６４９ ～２４７７５ Ｃ Ｆ Ｕ／ｍ ３ ， 厌氧菌浓度计３０１７ ～２４７７５ Ｃ Ｆ Ｕ／ｍ ３ 和６６１ ～４１２２ Ｃ Ｆ Ｕ／ ｍ３ 。根据 Ｈ Ｅ Ｓ Ｋ Ｅ Ｔ Ｈ （１９７４） 计算公式和 Ｋ Ｌ Ｕ Ｇ （１９６９） 气溶胶颗粒扩散模式， 得出犊牛舍菌源强度， 即向环境排放需氧菌为１１００００ ～１４００００ Ｃ Ｆ Ｕ／ｓ ， 厌氧菌在２７０００ ～１７５０００ Ｃ Ｆ Ｕ／ｓ 之间。细菌浓度实际测量值与估算一致， 该公式和扩散模式适合于动物舍菌源强度和舍外环境不同距离空气微生物浓度的估算。距离犊牛舍１００ ｍ 下风处， 需氧菌高达６５０ ～８３９ Ｃ Ｆ Ｕ／ｍ ３ ， 厌氧菌１６０ ～１０３４ 细菌／ｍ ３ ， 各项均超过正常值１０ ～１５ 倍。
The total number of airborne aerobic bacteria of the indoor samples ranged from 8536 to 46691CFU/m 3(Colony Forming Unit)and outdoor(4m distance)samples from 2649 to 24775 CFU/m 3,while the anaerobic bacteria count of the indoor air of the calf stable was between 3017 and 24775 CFU/m 3 and in the vicinity of the calf stable ranged from 661 to 4122 CFU/m 3,collected by Andersen sampler The bacterial source intensity of the calf stable has been attained according to the HESKETH’s formula(1974) and KLUG’s diffusion pattern(1969) of aerosol particle That is the number of airborne bacteria spreading to environment aerobe from 110000 to 140000 CFU/s and anaerobic bacteria between 27000 and 175000 CFU/s The estimation of bacterial concentration in the vicinity of the livestock building is in accordance with the real testing value
出处
《中国预防兽医学报》
CAS
CSCD
1999年第4期311-313,共3页
Chinese Journal of Preventive Veterinary Medicine
基金
德国科研协会资助
