STUDY OF DISINFECTION EFFICIENCY ON DAIRY MASTITIS BACTERIA BY ELECTROCHEMICAL JAVEL WATER

Abstract

     This paper presents the results of testing to determine the disinfection effectiveness of dairy cow mastitis bacteria including Pseudomonas, Streptococcus agalactiae, Staphylococcus aureus and E. coli by electrochemical javel water (sodium hypochlorite) produced on-site in GIA VANG 10. The results showed that, while the javel water in direct contact with bacteria 106 - 107 CFU/ml, the testing bacteria completely inactivated after 5 minutes exposure to javel water with the concentrations 100-200 ppm. When the disinfection of dairy cow udder by 200 ppm javel water solution, reducing the total fungal density 98.9%, and the density of aerobic bacteria, Staphylococcus aureus and Streptococcus agalactiae, reaching 94.9% and 94.3% respectively. In the dairy cow udder surface samples taken on lactating cows, not detect the bacteria Pseudomonas and E.coli.