Clinical endometritis with Trueperella pyogenes reduces reproductive performance and milk production in dairy cows
| Autor: | Renan Braga Paiano, Andrea Micke Moreno, Jeannine Bonilla, Pietro Sampaio Baruselli |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
medicine.drug_class
Antibiotics ved/biology.organism_classification_rank.species Cattle Diseases Vaginal mucus Endocrinology Animal science Pregnancy Healthy control medicine Trueperella pyogenes Animals Lactation ved/biology business.industry Reproduction food and beverages Bacterial Infections medicine.disease Milk production Neutrophilic leukocyte Milk Actinomycetaceae Cattle Female Animal Science and Zoology Endometritis business ENDOMETRITE ANIMAL Biotechnology |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 1439-0531 0936-6768 |
| DOI: | 10.1111/rda.14017 |
| Popis: | The aim of this study was to identify the impact of Trueperella pyogenes in cows with clinical endometritis (CE) on reproductive performance and milk production in affected cows. In total, 230 lactating Holstein dairy cows from six commercial dairy herds were sampled once between 28 and 33 days post-partum. Cows included in the present study did not receive antibiotic or anti-inflammatory treatments prior to the experimental period. Clinical endometritis (CE) was characterized as cow with vaginal mucus score = 3 (>50% of purulent vaginal discharge) and >18% polymorphonuclear neutrophilic leukocyte (PMNL). The body condition scores (BCS) and milk production were evaluated at the time of enrolment. The identification of isolated bacteria was carried out through the analysis of MALDI-TOF MS (matrix-assisted laser desorption ionization time-of-flight mass spectrometry). According to uterine health, three groups of dairy cows were formed: healthy control cows without T. pyogenes (n = 147), CE cows with T. pyogenes (n = 22) and CE cows without T. pyogenes (n = 61). CE cows with T. pyogenes had lower BCS, milk production and conception at first AI (p |
| Databáze: | OpenAIRE |
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