Determinación de la prevalencia de tuberculosis bovina en el hato ganadero de la hacienda "Cerro viejo" de la parroquia San Juan, perteneciente al cantón Riobamba, provincia de Chimborazo

Abstract

The prevalence of bovine tuberculosis (TB) in the herd of cattle of the “Cerro Viejo” farm, San Juan Parish from Riobamba Canton-Chimborazo province, was determined by the tuberculin test. In order to carry out the research, all cattle has been separated into categories: cows in production (over 24 months), belly cows (18 to 24 months old), fierro cows (12 and 18 months old), and cows of half (6 and 12 months), by using Excel 2010, data were grouped according to measures of central tendency (mean, mode and frequency). In the analysis of results should be taken into account benchmark measures, if the measurements are greater than 3mm, it is considered as suspect, and if the measurements are greater than 5mm, it is considered as positive. Of the total of 45 cows evaluated in different categories, it was possible to determine 45 negative cases and no positive case, so the prevalence of bovine tuberculosis (TB) is 0%.This implies that the health control carried out on the “Cerro Viejo” farm was appropriate, because of evaluating the intradermoreaction results no case exceeded 5mm. There aren´t any positive cases, therefore it can´t show any economic losses to the farm. However, it is recommended to carry out studies in the areas surrounding it.