TY  - JOUR
U1  - Wissenschaftlicher Artikel
A1  - Müller, Stephanie
A1  - Nitz, Julia
A1  - Tellen, Anne
A1  - Klocke, Doris
A1  - Krömker, Volker
T1  - Effect of Antibiotic Compared to Non-Antibiotic Dry Cow Treatment on the Bacteriological Cure of Intramammary Infections during the Dry Period—A Retrospective Cross-Sectional Study
JF  - Antibiotics
N2  - Antimicrobials are widely used to cure intramammary infections (IMI) in dairy cows during the dry period (DP). Nevertheless, the IMI cure is influenced by many factors and not all quarters benefit from antimicrobial dry cow treatment (DCT). To evaluate the true effect of antibiotic DCT compared to self-cure and the role of causative pathogens on the IMI cure, a retrospective cross-sectional study was performed. The analysis included 2987 quarters infected at dry-off (DO). Information on DCT, causative pathogens, somatic cell count, milk yield, amount of lactation, Body Condition Score, and season and year of DO were combined into categorical variables. A generalized linear mixed model with a random cow, farm and year effect and the binary outcome of bacteriological cure of IMI during the DP was conducted. In the final model, a significant effect (p < 0.05) on DP cure was seen for the DO season and the category of causative pathogens (categories being: Staphylococcus aureus, non-aureus staphylococci, streptococci, coliforms, ‘other Gram-negative bacteria’, ‘other Gram positive bacteria’, non-bacterial infections and mixed infections), while antibiotic DCT (vs. non-antibiotic DCT) only showed a significant effect in combination with the pathogen categories streptococci and ‘other Gram-positive bacteria’.
KW  - dairy cows
KW  - antimicrobials
KW  - selective dry cow treatment
KW  - teat sealant
KW  - udder health
KW  - subclinical mastitis
KW  - Milchkuh
KW  - Antimikrobieller Wirkstoff
KW  - Trockenstellen
KW  - Zitzenversiegler
KW  - Euterentzündung
Y1  - 2023
UN  - https://nbn-resolving.org/urn:nbn:de:bsz:960-opus4-26116
SN  - 2079-6382
SS  - 2079-6382
U6  - https://doi.org/10.25968/opus-2611
DO  - https://doi.org/10.25968/opus-2611
VL  - 12
IS  - 3
SP  - 14
S1  - 14
ER  -