EXPERIMENTAL INFECTION BY Trypanosoma evansi IN RABBITS
DOI:
https://doi.org/10.5216/cab.v9i2.4247Keywords:
Sanidade animalAbstract
This work had the aim to evaluate the pre-patent period and the evolution of the parasitemy of rabbits experimentally infected by Trypanosoma evansi. Male rabbits from two to six months were divided in four groups of three animals each (A, B, C, D). Group A, B and C rabbits were infected with T. evansi and evaluated daily through peripheral blood smears. The daily analyses showed a pre-patent period in the infected groups (A, B and C) of six, seven and 11 days, respectively. Animals from group A, infected by T. evansi and Eimeria spp., had a longevity of 56 days after the start of the experiment. The animals from group B which were infected by T. evansi and received coccidiostatic treatment presented longevity similar to group C, that were formed by rabbits parasitized only by T. evansi. In both groups the parasitemy had irregular peaks ranging from zero to five trypomastigotes/field until 89 days after the inoculation, disappearing of the blood circulation after 90 days. Rabbits from group D, control group, were not infected.
Animals from groups B, C and D were sacrificed 120 days after the start of the experiment.
Key words: Parasitemy, rabbit, Trypanosoma evansi.
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