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Storage and Treatment of Milking Machine Inflations under Farm Conditions^{1, 2,}

Michigan State College, East Lansing

ABSTRACT

Difficulty in producing high quality milk frequently has been attributed to using milking machines that were not in the proper state of sanitation. Many procedures have been advocated as a means of sanitizing the rubber inflations and tubing. Most of these procedures were discussed in a previous article (3) in which the authors presented results of a laboratory study of rubber inflations for milking machines. The study reported: (a) the extent of fat absorption, (b) the extent of storage solution absorption, (c) the deteriorating effect of inorganic chlorine, and (d) the advantage of boiling rubber parts in lye solution at intervals as a means of saponifying entrained fat, thus improving their sanitary condition.

Mallman et al. (4) recently reported a study in which producers used a variety of sanitizers. This study indicated that cationic germicides were more effective as sanitizing agents than lye and chlorine, as measured by lower total and thermoduric counts of milk.

¹ Journal Article no. 919 (n.s.), Michigan Agricultural Experiment Station.

² This study was made possible through a grant from Swift and Company, Chicago, Illinois, for research in quality milk and cream.