Skip to main content Accessibility help
×
Home
Hostname: page-component-544b6db54f-6mft8 Total loading time: 0.175 Render date: 2021-10-18T18:42:19.934Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true, "newUsageEvents": true }

Effect of teat washing on the bacteriological contamination of milk from cows kept under various housing conditions

Published online by Cambridge University Press:  01 June 2009

Charles H. McKinnon
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading RG2 9 AT, UK
Rosemary J. Fulford
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading RG2 9 AT, UK
Christina M. Cousins
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading RG2 9 AT, UK

Summary

The effect of different methods of teat washing on bacterial contamination and sediment levels of the milk of cows kept under 3 housing conditions was studied. By use of an in line milk sampler and steam sterilized clusters the bacterial contamination from the teats after udder preparation was determined directly.

The results show that, even under the same housing conditions and teat washing treatments, considerable variation in bacterial counts and sediment level occurred. Overall, washing with hypochlorite (600 mg/1 available Cl) and drying with a paper towel gave total counts that were significantly lower than were obtained with the other 4 treatments. The aerobic spore count, in which thermoduric flora predominated, was greatly reduced by drying the teats, but the inclusion of hypochlorite in the wash water had little effect. Coliform contamination was very low (∼ 1/ml) even where the cows' teats were heavily soiled and were not washed.

The sediment levels in the milk again showed wide variation and occasional high values (3 mg/l) were recorded for washed cows. In marked contrast to its effect on the bacteriological results, drying had little effect on reducing the sediment.

Type
Original Articles
Copyright
Copyright © Proprietors of Journal of Dairy Research 1983

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

British Standards Institution 1973 Method for the rapid determination of sediment in milk by filtration. B.S. 4938Google Scholar
Clough, P. A., Akam, D. N. & Cant, D. 1965 Circulation cleaning of pipeline milking machines with boiling water. Esso Farmer 17 (1) 49Google Scholar
Cousins, C. M. 1972 Sources of bacteria in farm bulk tank milk. Journal of the Society of Dairy Technology 25 200203CrossRefGoogle Scholar
Dawkins, J. & Slade, J. 1974 An in-line udder wash chlorinator. 19th International Dairy Congress, New Delhi 1E 45Google Scholar
Johns, C. K. 1962 The coliform count of raw milk as an index of udder cleanliness. 16th International Dairy Congress, Copenhagen C 365371Google Scholar
McKinnon, C. H., Cousins, C. M. & Fulford, R. J. 1973 a An in-line milk sampler for determining the numbers of bacteria derived from teat surfaces and udder infections of cows milked in recorder machines. Journal of Dairy Research 40 4752CrossRefGoogle ScholarPubMed
McKinnon, C. H., Riches, M. E., Underwood, H. M., Cousins, C. M. & Davies, F. L. 1973 b Report, National Instihitefor Research in Dairying 1971–72 114Google Scholar
Underwood, H. M., McKinnon, C. H., Davies, F. L. & Cousins, C. M. 1974 Sources of bacillus spores in raw milk. 19th International Dairy Congress, New Delhi 1E 373374Google Scholar
11
Cited by

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Effect of teat washing on the bacteriological contamination of milk from cows kept under various housing conditions
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

Effect of teat washing on the bacteriological contamination of milk from cows kept under various housing conditions
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

Effect of teat washing on the bacteriological contamination of milk from cows kept under various housing conditions
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *