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Factors Associated with the Severity of Clinical Mastitis

  • Severe mastitis can lead to considerable disturbances in the cows’ general condition and even to septicemia and death. The aim of this cross-sectional study was to identify factors associated with the severity of the clinical expression of mastitis. Streptococcus (Str.) uberis (29.9%) was the most frequently isolated pathogen, followed by coliform bacteria (22.3%). The majority of all mastitis cases (n = 854) in this study were either mild or moderate, but 21.1% were severe. It can be deduced that the combination of coliform pathogens and increasing pathogen shedding of these showed associations with severe mastitis. Furthermore, animal-related factors associated with severe disease progression were stages of lactation, and previous diseases in the period prior to the mastitis episode. Cows in early lactation had more severe mastitis. Ketosis and uterine diseases in temporal relation to the mastitis were associated with more severe mastitis in the diseased cows. Hypocalcemia was significantly associated with milder mastitis. As another factor, treatment with corticosteroids within two weeks before mastitis was associated with higher severity of mastitis. Knowledge of these risk factors may provide the basis for randomized controlled trials of the exact influence of these on the severity of mastitis.

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Metadaten
Author:Frederik Fredebeul-KreinORCiD, Anne SchmengerGND, Nicole WenteORCiDGND, Yanchao ZhangORCiD, Volker KrömkerORCiDGND
URN:urn:nbn:de:bsz:960-opus4-23995
DOI:https://doi.org/10.25968/opus-2399
DOI original:https://doi.org/10.3390/pathogens11101089
ISSN:2076-0817
Parent Title (English):Pathogens
Document Type:Article
Language:English
Year of Completion:2022
Publishing Institution:Hochschule Hannover
Release Date:2022/12/12
Tag:bovine mastitis; risk factors; severe mastitis; severity score
GND Keyword:Euterentzündung; Streptococcus uberis; Coliforme Bakterien
Volume:11
Issue:10
Article Number:1089
Link to catalogue:1838493247
Institutes:Fakultät II - Maschinenbau und Bioverfahrenstechnik
DDC classes:630 Landwirtschaft, Veterinärmedizin
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International