166	Staphylococcus Aureus Mastitis in Fresh Calved Heifers on a Dairy Farm in Hungary A. Tirian, M. Kovács, E. Brydl, O. Szenci, L. Könyves, V. Jurkovich, E. Ungvári Hungary

167	Genotyping of Staphylococcus Aureus Isolated from Bovine Mastitis Cases and Asymptomatic Carrier Mammary Glands F. Bispo, I. Rivera, J. Arcaro, E. Mamizuka, C. Mendonça, P. Melville, E. Costa Brazil

84	Prototheca Blaschkeae Associated with Bovine Mastitis S. Marques1, E. Silva1, C. Kraft2, V. Huss2, G. Thompson1 1Portugal, 2Germany

169	The Hiperkeratosis of the Teat Channel in Portuguese Dairy Farms. General Causes and Microbiological Effects J. Sousa, C. Gomes, A. Pereira, H. Madeira, J. Niza-Ribeiro Portugal

170	Teat Stenoses and Injuries are an Important Aspect of the Daily Work in Dairies. Surgical and Non-surgical Procedures which are Possible in the Cowshed R. Ebner1, F. Schlederer2 1Germany, 2Austria

171	Investigation of an Extended Therapy Regime using Penethamate Hydriodide for the Treatment of Persistent Intramammary Infection in U.K. Dairy Cows J. Breen, M. Green, A. Bradley United Kingdom

172	Challenge with Streptococcus uberis to Evaluate the Efficacy of Teat Sealers in Preventing Mastitis N. Williamson, K. Petrovski, C. Fernandez New Zealand

173	Use of Leukocyte Differential Patterns to Optimize Diagnosis of Bovine Intramammary Infections: Evaluation of Partitioned vs. Non-partitioned Testing A. Rivas1, K. Anderson1, G. Leitner2, M. Chaffer2, O. Krifucks2, R. Rodriguez1 1United States, 2Israel

174	Efficacy of a 5-Day Extended Lactational Therapy with Cephapirin Sodium in Dairy Cows Chronically Infected with Staphylococcus Aureus J. P. Roy, L. Des Côteaux, D. Du Tremblay, F. Beaudry Canada