Contribuição para avaliação do actual esquema profilactíco no controlo da tripanossomose em unidades bovinas do corredor da Beira

Abstract

In the present work, an evaluation of the prophylactic scheme established for the control of animal trypanosomosis is made, which consists of the application 4 times a year of isometamidium chloride combined with an annual application of diminazene aceturate.. 3 groups of 24 animals aged between 4 and 10 months were used. Each of the groups remained integrated into their herd at the Matsinho, Muda and Vanduzi stations. For experimental purposes, these groups were divided into two subgroups with an equal number of animals, being a control subgroup (with prophylactic treatment) and an experimental subgroup (without prophylactic treatment). The parameters studied in the present work were: presence of trypanosomes, hematocrit volume and growth (live weight). The results showed a low prevalence and incidence of trypanosomosis, in all seasons. In just one station in hematocrit volume there was a statistically significant difference between animals with and without prophylactic treatment. There was no statistically significant difference in growth between the two subgroups, in all seasons. According to these results, it seems not advisable to use this prophylactic scheme in the studied areas. (TRADUÇÃO NOSSA)