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An effect of mammary gland infection caused by Streptococcus uberis on composition and physicochemical changes of cows' milk

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62157124%3A16170%2F16%3A43874626" target="_blank" >RIV/62157124:16170/16:43874626 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1515/pjvs-2016-0007" target="_blank" >http://dx.doi.org/10.1515/pjvs-2016-0007</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1515/pjvs-2016-0007" target="_blank" >10.1515/pjvs-2016-0007</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    An effect of mammary gland infection caused by Streptococcus uberis on composition and physicochemical changes of cows' milk

  • Original language description

    An effect of mammary gland infection caused by Streptococcus uberis on the changes in cows' milk composition and its physicochemical properties was examined. The study was conducted in the herd of Slovak Pied breed cattle (with a share of HF blood), in 2nd and 3rd lactation, after 4th month of milking. Milk samples were collected from a quarter milking. The samples were subjected to microbiological analysis, basic milk composition, total bacteria count, somatic cell count and physicochemical properties were examined. Also analyses of protein fractions share and fatty acids profile were conducted. An effect of bacterial infection of the mammary gland bring an increase (P<0.01) in somatic cell count was observed in this study. Milk samples contaminated with S. uberis were characterized by higher (P<0.05) total bacteria count and total protein compared to milk samples collected from non-infected mammary gland. The level of kappa-casein was significantly (P<0.05) decreased in cows with subclinical mastitis caused by S. uberis. Significant (P<0.05) reduction in the share of C13:0 acid, and an increased level of C18:0, C18:1n7t and CLA were observed in milk contaminated with S. uberis compared to healthy cows' milk. It should be concluded that S. uberis causes the increase in total bacteria count, SCC and the decrease in kappa-casein level, which significantly affects deterioration of technological quality of cows' milk.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    GJ - Diseases and animal vermin, veterinary medicine

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    N - Vyzkumna aktivita podporovana z neverejnych zdroju

Others

  • Publication year

    2016

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Polish Journal of Veterinary Sciences

  • ISSN

    1505-1773

  • e-ISSN

  • Volume of the periodical

    19

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    PL - POLAND

  • Number of pages

    7

  • Pages from-to

    49-55

  • UT code for WoS article

    000372393600007

  • EID of the result in the Scopus database