A comparison of the relative merits of quaternaries and of hypochlorites for mastitis sanitation procedures — such as washing teat cups and udders — showed that both types of sanitizers were about equally effective.

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Author notes

1Paper presented at 38th Annual Convention, International Association of Milk and Food Sanitarians, Glenwood Springs, Colorado, Sept. 26–29, 1951.

2Published with the approval of the Director of the Oregon Agricultural Experiment Station. Contribution of the Department of Bacteriology.

Dr. P. R. Elliker has been Professor of Dairy Bacteriology at the Oregon State College since 1947. He received his Ph.D. Degree from the University of Wisconsin, and served as Assistant and Associate Professor of Dairy Bacteriology at Purdue University, with experience in military research and development in biological warfare. He is Associate and Abstract Editor of the Journal of Dairy Science, has contributed many artices to the dairy and bacteriological literature, and is author of the book Practical Dairy Bacteriology.