Risk factors of high somatic cell count and differential somatic cells in early lactation associated with selective dry cow therapy.
Dairy cattle
Dry period management
Hygiene Score
Logistic regression
Milk leucocyte
Journal
Animal : an international journal of animal bioscience
ISSN: 1751-732X
Titre abrégé: Animal
Pays: England
ID NLM: 101303270
Informations de publication
Date de publication:
Oct 2023
Oct 2023
Historique:
received:
28
12
2022
revised:
30
08
2023
accepted:
01
09
2023
medline:
23
10
2023
pubmed:
6
10
2023
entrez:
5
10
2023
Statut:
ppublish
Résumé
The routine use of intramammary antimicrobial products in all dairy cows at the beginning of the dry period is no longer allowed in European Union (EU) countries due to the new Regulation (EU) 2019/6 to reduce antimicrobial resistance. This study investigated the application of a selective dry cow therapy scheme and the risk factors of high individual milk somatic cell count (SCC) and individual neutrophil count in early lactation, as a response to the application of a selective dry cow therapy (SDCT) protocol. The study was carried out on three commercial farms, and a total of 243 lactating cows were monitored at the end of lactation and at the beginning of the next one, 91 of which were dried off without the use of antimicrobials (NoT) based on milk SCC, differential somatic cell count (DSCC), and the response of Vetscan DC-Q milk analyser, using a secret algorithm. The remaining 152 cows received antimicrobials (T). After calving, similar means were observed between the two treatment groups for SCC (4.8 vs 4.9 log
Identifiants
pubmed: 37797494
pii: S1751-7311(23)00299-9
doi: 10.1016/j.animal.2023.100982
pii:
doi:
Substances chimiques
Anti-Infective Agents
0
Anti-Bacterial Agents
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
100982Informations de copyright
Copyright © 2023 The Author(s). Published by Elsevier B.V. All rights reserved.