Factors Associated with Bacteriological Cure During Lactation After Therapy for Subclinical Mastitis Caused by Staphylococcus aureus

• Published in: Journal of dairy science Vol. 80; no. 11; pp. 2803 - 2808
• Main Authors: Sol, J., Sampimon, O.C., Snoep, J.J., Schukken, Y.H.
• Format: Journal Article
• Language: English
• Published: Savoy, IL Elsevier Inc 01.11.1997; Am Dairy Sci Assoc; American Dairy Science Association
• Subjects: AGE; AGE DIFFERENCES; Animal productions; Animals; Anti-Bacterial Agents - therapeutic use; antibiotic therapy; ASYMPTOMATIC INFECTIONS; Biological and medical sciences; BOVINE MASTITIS; Cattle; CHRONIC COURSE; CONTEO DE CELULAS SOMATICAS; CULLING; DAIRY COWS; DRUGS; EDAD; ELIMINACION; EQUATIONS; Female; FORECASTING; Fundamental and applied biological sciences. Psychology; GLANDE MAMMAIRE; GLANDULAS MAMARIAS; INFECCIONES LATENTES; INFECTION LATENTE; LACTACION; LACTATION; LACTATION STAGE; LATENT INFECTIONS; Logistic Models; MAMMARY GLANDS; MAMMITE BOVINE; MASTITIS BOVINA; Mastitis, Bovine - drug therapy; Mastitis, Bovine - microbiology; MATEMATICAS; MATHEMATICS; MATHEMATIQUE; MEDICAMENT; MEDICAMENTOS; NUMERATION CELLULAIRE SOMATIQUE; Penicillin Resistance; PROCESO CRONICO; PROCESSUS CHRONIQUE; REFORME DES ANIMAUX; RESISTANCE AUX PRODUITS CHIMIQUES; RESISTANCE TO CHEMICALS; RESISTENCIA A PRODUCTOS QUIMICOS; Risk Factors; SOMATIC CELL COUNT; Staphylococcal Infections - drug therapy; Staphylococcal Infections - veterinary; STAPHYLOCOCCUS AUREUS; subclinical mastitis; TECHNIQUE DE PREVISION; TECNICAS DE PREDICCION; Terrestrial animal productions; Treatment Outcome; UDDER QUARTERS; VACAS LECHERAS; VACHE LAITIERE; Vertebrates; antibiotic therapy; risk factors; Staphylococcus aureus; BMSCC; subclinical mastitis; Mastitis; Farming animal; Cure; Treatment efficiency; Dairy cattle; Veterinary medicine; Infection; Mammary gland diseases; Vertebrata; Chemotherapy; Mammalia; Risk factor; Bacteriosis; Bacteria; Micrococcales; Female; Micrococcaceae; Artiodactyla; Ungulata
• ISSN: 0022-0302; 1525-3198
• DOI: 10.3168/jds.S0022-0302(97)76243-X

The objective of this study was to determine the factors that were associated with the cure of subclinical mastitis caused by Staphylococcus aureus treated during lactation. One hundred forty-three quarters that were infected with S. aureus were available from a number of treatment trials. Analysis of these data showed that the most important factors associated with cure were age of the cow, somatic cell count at the time of treatment, presence of the infection in the front quarters, and stage of lactation. Other factors, such as number of infected quarters per cow and sensitivity or resistance of the strain to penicillin, were not significant. Because of the relatively low probability of cure, it is important to know risk factors for cure and, hence, to choose cows for treatment with great care. Using these data, a prediction equation was developed to determine the cure rate of subclinical mastitis caused by S. aureus when treated during lactation.