[Relation between tsetse fly density and bovine trypanosomiasis: the case of N'Dama cattle ranching (Louboulou, Congo)].

The authors report the results of an entomo-parasitological survey in the State Ranch of Louboulou, Bouenza region, Congo. Over a period of more than five months, the average tsetse density was 0.2 Glossina palpalis palpalis captured per day and trap.