Energy imbalance related predisposition to mastitis in group-fed high-producing postpartum dairy cows
| Autor: | G. Sályi, P. Korodi, J. Reiczigel, Gyula Huszenicza, Piroska Ribiczey-Szabó, Sz. Jánosi, Steph J. Dieleman, Margit Kulcsár, L. Kátai, Judit Anna Nikolic |
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| Rok vydání: | 2003 |
| Předmět: |
Blood Glucose
Hydrocortisone Yugoslavia Physiology Ice calving Fatty Acids Nonesterified medicine.disease_cause Gram-Positive Bacteria Acetoacetates Pregnancy Gram-Negative Bacteria Medicine Animals Insulin Urea Aspartate Aminotransferases Insulin-Like Growth Factor I Mastitis Bovine General Veterinary 3-Hydroxybutyric Acid business.industry Postpartum Period Outbreak Odds ratio Ketosis medicine.disease Mastitis Dairying Thyroxine Cholesterol Milk Immunology Cattle Female business Somatic cell count Staphylococcus Postpartum period |
| Zdroj: | Acta veterinaria Hungarica. 51(3) |
| ISSN: | 0236-6290 |
| Popis: | The energy imbalance related predisposition to mastitis was studied in group-fed postpartum dairy cows (n = 333) kept in 4 large-scale units and producing milk of low somatic cell count (SCC). Blood samples were taken on Days 1-3 after calving for assaying some metabolites and hormones related to the negative energy balance (NEB). If mastitis was diagnosed later, aseptic milk samples were taken to identify the pathogens. Considering pathogen types [contagious pathogens:Staphylococcus(S.)aureus,Gram-positive(GP)environmental pathogens, andGram-negative(GN)environmental pathogens+ mastitis withno detectable pathogens(NDP)] separately, stepwise logistic regression was used to analyse the relation between the potential prognostic value of hormones and metabolites and mastitis outbreak. Only the elevated (= 1.00 mmol/l) serum ß-hydroxybutyrate (BHB) levels predisposed the cows to mastitis in the subsequent 4 weeks. This prognostic value of BHB was significant only in GN + NDP mastitis and in cases caused by GP environmental pathogens, but not inS. aureusmastitis (odds ratio: 5.333, 3.600 and 1.333, respectively). |
| Databáze: | OpenAIRE |
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