Disinfection of Premises
Beforehand the application of disinfectants, removal and safe disposal of manure, feed and debris by burial or burning method followed by thorough scraping and cleaning of all buildings and equipment must is done. Except for steam cleaning, cleaning with aqueous solutions is practical only at temperatures above freezing. A cleaning agent such as trisodium phosphate or sodium carbonate dissolved in hot water is used for cleaning. All traces of the cleaning agent must be rinsed away with clear water before disinfectant is applied. Provision must be made to contain and safely disposal of cleaning solutions, rinse water, and disinfectant. Disinfectants recommended for general use on surfaces free of organic matter are sodium or calcium hypochlorite (1,200 ppm available chlorine), iodine, phenol, and quaternary ammonium compounds. Newer disinfectants use a combination of products (eg, quaternary ammonia and glutaraldehyde) to enhance efficacy. Label instructions for application must be followed.