Storage and Treatment of Milking Machine Inflations under Farm Conditions

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Abstract
Farm application of milker inflation storage employing 0.5% lye soln., 200 ppm. cationic germicide, and dry storage was observed by farm inspection, sterile rinse counts of inflations and bacterial counts of milk. Comparison of storage treatment was made using 2 procedures on each of 2 designated milkers on each farm. The lye and cationic solns. appeared to have equal germicidal value as measured by total rinse counts when soln. rack storage was used. The cationic germicide soln. caused greater reduction in thermoduric count of rinse water samples than did lye. Lye soln. had less germicidal effectiveness than the cationic germicide when immersion storage was used. Dry storage was least satisfactory in maintaining uniformly low counts of inflations, and high thermoduric counts were associated with cold water washing followed by dry storage. Dry storage after washing and sanitizing with 1 gal. of 200 ppm. cationic soln. was not satisfactory. Some objection to the physical properties of the cationic germicide was registered.

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