Diagnóstico microbiológico de la mastitis bovina y evaluación de tres alternativas de tratamiento en el criadero jersey “El Puente” de Chimborazo.

Abstract

The objective of this research was to carry out the microbiological diagnosis of bovine mastitis and evaluate three alternatives for its treatment in the Jersey “El Puente” hatchery in Chimborazo province. The experimental units were assigned under a Completely randomized Design with three treatments: antibiotic, ozone and hypochlorous acid and 4 repetitions per treatment. For the experimental results of phase 1, statistical measures of central tendency and dispersion were used. The results by means of the CMT test determined 7 infected animals in four rooms. By means of laboratory microbial culture techniques, the types of mastitis causal agents were determined, some of which prevailed after using the different medications. It was identified that the type of bacteria that prevailed the most were those of the coconut type gram negative bacilli (-) with a 31% prevalence and in the application of hypochlorous acid the bacteria with the highest prevalence were the type of coconut gram positive bacilli (+ ) and great negatives (-) with a prevalence of 40%. The economic analysis was carried out evaluating the production costs before and after the application of the drugs and it was reported that before the treatment the average cost of milk was equal to $ 13.96 per group of cows; while after the application of the drugs the production cost increased to $ 14.50 per group of average cows and the difference in production cost was $ 0.54, reporting a benefit-cost of the dairy system of this farm of 1.13 . Therefore, it is concluded that the best treatment is to use ozone because an efficacy of 75% was determined, that is, there was only a 25% prevalence of mastitis. It is recommended to replicate the study in other herds with a greater number of animals in order to eradicate mastitis.