Bedoya Mejía, OswaldoGiraldo Botero, Alejandro2016-08-162016-08-162014http://hdl.handle.net/10567/1546Theprofessional practice was performed inColantaCompany; it had as main objectives, implement the subclinical mastitiscontrolprogram in cattle to improve the quality of milk in the northern municipalities of Antioquia and participate in research seminars. For subclinical mastitis control program, the cattle affected was identified through a list provided by the laboratory of the company from partners of different farms , which coincided with a high Somatic Cell Count (SCC ). Fortnightly visits were conducted to implement the California Mastitis Test ( CMT ), to determine the prevalence of mastitis and conduct training milkers in their interpretation and registration; the producer members were trained in good practices in milking routines and hygienic quality and, in cases where it was necessary, samples for culture and sensitivity were taken by the National Mastitis Council U.S. (NMC ) guidelines, for subsequent medication according to the disease -causing pathogen . The days of investigation were designed to support field work, the main objective of the project is to evaluate the efficacy of two treatment protocols to control the bacterium Streptococcus agalactiae in dairy herds specialized in the departments of Antioquia and Caldas, using a randomized clinical trial.esAcceso abiertoCorporación Universitaria LasallistaMedicina VeterinariaColantaMastitisGanado lechero - EnfermedadesThesis