The Value of Hypochlorite and Quaternary Ammonium Compounds, when Used in Udder Washes, in Reducing the Plate Count of Milk
Open Access
- 1 March 1948
- journal article
- research article
- Published by American Dairy Science Association in Journal of Dairy Science
- Vol. 31 (3) , 179-182
- https://doi.org/10.3168/jds.s0022-0302(48)92193-6
Abstract
A study was conducted relative to the effects of the following udder washes upon the plate counts of milk obtained from dairy cows by milking machines: water and water containing 200 and 400 ppm. of Cl as well as 200 and 400 ppm. pf quaternary ammonium. Milking was done with previously auto-claved milking machines and the raw milk plated on tryptone-glucose-extract-milk agar before growth could take place. No differences in count could be attributed to treatments. A large degree of variation was observed between individual cows. On 25 pairs of observations, no significant difference in counts could be observed between night and morning milk-ings.This publication has 3 references indexed in Scilit:
- The Value of Chlorine in Producing Low Bacterial Count MilkJournal of Dairy Science, 1943
- The Role of Disinfectants in the Control of MastitisJournal of Milk Technology, 1942
- The Sterilizing Quality of Chlorine Solutions Under Different ConditionsJournal of Milk Technology, 1939