Bacteriocidal Effects of Ultraviolet Irradiation for Reducing Bovine Mastitis Derived from Environmental Contamination
2008
Kim, D.H. (Gyeongsang National University, Jinju, Republic of Korea) | Lim, J.J. (Gyeongsang National University, Jinju, Republic of Korea) | Lee, J.J. (Gyeongsang National University, Jinju, Republic of Korea) | Jang, H.H. (Gyeongsang National University, Jinju, Republic of Korea) | Jang, D.I. (Chungnam National University, Daejeon, Republic of Korea) | Lee, S.J. (Chungnam National University, Daejeon, Republic of Korea) | Lee, H.J. (Gyeongsang National University, Jinju, Republic of Korea) | Min, W.G. (Gyeongsang National University, Jinju, Republic of Korea) | Kwon, S.H. (Pusan National University, Busan, Republic of Korea) | Kim, S.H. (Chungnam National University, Daejeon, Republic of Korea) | Oh, K.Y. (National Academy of Agricultural Science, RDA, Suwon, Republic of Korea), E-mail: [email protected] | Kim, S. (Gyeongsang National University, Jinju, Republic of Korea), E-mail: [email protected]
Bovine mastitis is an important disease causing serious economic loss in dairy production and food poison in public health. The major causative agents of bovine mastitis include Escherichia coli (E. coli), Streptococcus agalactiae (S. agalactiae), Staphylococcus aureus (S. aureus). These bacteria were found in milk and environmental condition such as feces, water, soil and so on. Recently, many cases of mastitis are derived from environmental contamination of micro-organisms, which important factors for the spread of this disease in farm. Ultraviolet irradiation (UV) has been used as disinfection for waste and water in clinical and industrial facilities. Moreover the UV irradiation has been used as useful bactericidal agents to remove bacterial biofilms in environmental condition. In this study, we determined the bacterial replication in different percentage of water content (PWC) in sterilized saw dust and feces complexes from farm, and results showed that slightly decreased growth pattern of E. coli and S. agalactiae but increased growth pattern of S. aureus in various PWC (200, 400 and 600%) until 144 h incubation. In the bacteriocidal effect of UV irradiation to bacteria in saw dust and feces complex, the results showed that bacteriocidal effect was depended on the UV irradiation time, irradiation distance and PWC. Especially the antibacterial activity of UV irratiation is stronger in low PWC (50%), long time irradiation (50 sec), and short distance (5 cm) than other condition of this study. Furthermore UV irradiation with stirring showed increased the bactericidal effect compared without stirring. These results suggested that bovine mastitis causing agents may survive long time in environmental condition especially saw dust and feces complexes in farm and can cause a various disease including mastitis. Moreover, these data can be used as basis for application and development of UV disinfection to control of bovine mastitis from environmental contaminated bacteria in dairy farm.
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by Korea Agricultural Science Digital Library