Prevalencia de nematodos gastrointestinales en bovinos faenados en el Camal Municipal de Lago Agrio

Abstract

The present investigation was carried out in the Municipal Camal of Lago Agrio with the purpose of establishing the prevalence of gastrointestinal nematodes in slaughtered cattle and the economic impact due to the confiscation of viscera, the flow of animals was taken into account for 8 weeks to determine a estimated population and generate a total sampling of 445 samples; 206 in males and 239 in females by means of a qualitative stool analysis, a detailed inspection of the white viscera was carried out in search of macroscopic alterations at the intestinal level, which were the presence of nodules, ischemic areas and necrosis, causing the confiscation of the white viscera. Except for the rumen, a total of 36 seizures were made in males and 53 in females for a total of 89 seizures between intestines and omasum, which are purchased by dealers in the slaughterhouse at a price of $10 per unit, which gives a total of losses. of $890 US dollars from the total sampled population. Regarding the samples, around 50% of the bovine daily population of the Municipal Camal was taken for their respective analysis, these were taken postmortem directly from the viscera previously identified, they were transported in a cooler at a temperature of 4 to 8 °C for be analyzed in the laboratory of the "San Francisco" veterinary clinic located in the Lago Agrio canton, for which the flotation technique with saline solution was used for the microscopic observation of eggs and larvae of gastrointestinal nematodes and to determine the prevalence of the population total and by sex to obtain 68.31% of positive samples; in males a prevalence of 66.82% was reported and in females 69.82 positive to gastrointestinal nematodes in the larval stage or eggs. It was stipulated that the presence of gastrointestinal nematodes in the canton is due to factors such as inefficient sanitary plans, high contamination by these agents in pastures, non-rotation of animals, and the continuous introduction of animals without the corresponding sanitary measures.