Severity of experimental Escherichia coli mastitis in ketonemic and nonketonemic dairy cows
| Autor: | W.D.J. Kremer, F.J. Grommers, A. Brand, R Heeringa, Christian Burvenich, E.N. Noordhuizen-Stassen, Ynte H. Schukken |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Blood Glucose
Neutrophils Hydroxybutyrates macromolecular substances Granulocyte medicine.disease_cause Microbiology Immune system Lactation Genetics medicine Animals Escherichia coli Mastitis Bovine Escherichia coli Infections biology 3-Hydroxybutyric Acid Area under the curve biology.organism_classification medicine.disease Enterobacteriaceae Mastitis Chemotaxis Leukocyte medicine.anatomical_structure Animal Science and Zoology Cattle Female Disease Susceptibility Ketosis Energy Metabolism Food Deprivation Food Science |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 0022-0302 |
| Popis: | The severity of experimental Escherichia coli mastitis in relation to in vitro chemotaxis of polymorphonuclear leukocytes was investigated in cows during negative energy balance. The negative energy balance was induced by feed restriction. Cows were classified into two groups, ketonemic and nonketonemic, based on the beta-hydroxybutyrate concentration in the peripheral blood at the moment of inoculation. Bacterial growth in the inoculated quarter was used as a parameter to indicate the severity of experimental mastitis. In the nonketonemic cows, experimental mastitis ranged from moderate to severe. Severity of experimental mastitis was negatively related to preinfection chemotactic response of polymorphonuclear leukocytes. In contrast, the course of experimental mastitis in the ketonemic group was relatively severe in all cows, regardless of preinfection chemotactic response. |
| Databáze: | OpenAIRE |
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