Tuberculosis bovina en animales faenados en el camal del cantón Pasaje provincia de El Oro

Abstract

Bovine tuberculosis is an infectious and contagious disease that mainly affects cattle and is one of the most worrisome of existing zoonosis diseases, which means that it affects man, the etiologic agent of this disease is Mycobacterium Bovis and once diagnosed it can cause serious economic losses, both for animals and for producers, in humans they can be spread by eating infected meat and its unpasteurized dairy products, some areas of the country and the world the milk is taken raw and can It is dangerous to be infected with this disease since the products of animals carrying or containing this bacterium may come, the animals can be infected, by the main route that is the respiratory tract by staying with animals that are susceptible to tuberculosis and this disease is in principle Asymptomatic requires complementary analysis. This research aims to determine the prevalence of bovine tuberculosis at the road level in the El Oro province of the Passage canton, through samples collected from bovine lymph nodes that were to be slaughtered, these were collected twice a week, by Four weeks, these samples were extracted from the respiratory and gastrointestinal lymph nodes that were suspected or altered in shape or size. This consisted of two parts: field and laboratory, where the first part of the work consisted of the observation and collection of lymph nodes, such as: retropharyngeal, cervical, mediastinal that present altered in both size and shape and lung lesions in the post mortem inspection by One month in the Caña del Cantón Pasaje, which was held on November 7 until November 29, 2019, performing the ganglion review twice a week, observing a total of eight days. The second part consisted of the analysis in the laboratory where it was carried out at the National Institute of Public Health Research (INSPI) that we were located in the zoonosis area, where the respective culture of the samples that were extracted from the suspicious cattle with tuberculosis, these cultures were carried out in Ogava kudoh (OK) and Stonebrinks (ST), the smear technique was also performed, where previously staining was performed by Ziehl-Neelsen (ZN) to visualize the bacilli clearly, and then Perform the PCR-LAMP molecular test with the positive results for Bacillus Resistant Acid Alcohol (BAAR). The prevailing one that was found in the four weeks of the month of November 2019 of 151 animals that arrived on Thursday and Friday that were the days that more animals reach the camal, 15 altered nodes were macroscopically extracted having a result of 9.93% , and then perform the microscopic technique by performing the smear test with ZN staining, giving a positive (BAAR) obtaining a result of 26.67%, the races that reached the camal and that were made said analyzes were all mestizo and the age of The animals that collected the samples are cattle 4 years and older.