Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-27T22:58:46.435Z Has data issue: false hasContentIssue false
  • English
  • Français

Possible labile inhibition of the growth of Streptococcus uberis in milk from cows free from mastitis

Published online by Cambridge University Press:  02 October 2002

KIRSTY E. KLIEM  and
J. ERIC HILLERTON
KIRSTY E. KLIEM
Affiliation:
Institute for Animal Health, Newbury, Berkshire, RG20 7NN, UK
J. ERIC HILLERTON
Affiliation:
Institute for Animal Health, Newbury, Berkshire, RG20 7NN, UK
Get access Rights & Permissions [Opens in a new window]

Abstract

Milk from dairy cows never known to have had an intramammary infection with Streptococcus uberis can inhibit growth of Str. uberis for up to 7 h. This inhibition is abolished if milk is heated to 80 °C. Inhibition appears not to be related to immune defences as it occurs in skimmed milk (cell free), is unrelated to the concentration of immunoglobulin and survives heating to 56 °C. The effect is partly overcome by addition of selected amino acids and vitamins. It is suggested that the inhibition is caused by a restriction in the supply of essential nutrients part of which may require the conversion of plasminogen to plasmin.

Keywords

Streptococcus uberismilkmastitiscow
Type
Research Article
Information
Journal of Dairy Research , Volume 69 , Issue 3 , August 2002 , pp. 375 - 382
Copyright
Proprietors of Journal of Dairy Research 2002

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.)