DETERMINE THE TRYPANOSOMA SPECIE AND TRYPANOSOMIASIS TRANSMITTING VECTOR ON BUFFALO IN TUYEN QUANG PROVINCE

Abstract

Trypanosoma strains were isolated in buffaloes in 10 communes of 3 districts: Yen Son, Chiem Hoa and Ham Yen belong to Tuyen Quang province. The results were obtained: Trypanosomes parasitizes and causes disease on buffaloes in Tuyen Quang province was of trypanosomes genre - Trypanosoma evansi specie (Steel, 1885), with RoTat 1.2 gene sequences showed high similarity (99%) between Trypanosoma evansi isolates in Tuyen Quang province and known T. evansi isolates in Genbank. There were 3 species of blood sucking flies transmitting Trypanosomiasis on buffalo herd in Bắc Ninh province: Stomoxys calcitrans specie was 53.50%, Tabanus kiangsuensis specie (14.00%) and Tabanus rubidus specie (32.50%), with the frequency was 83.87-100%. The sucking flies performed high in summer and in autumn (from May to September), lately they reduced and shutting down in cold months; beginning to perform from 6 am to 8 am and highest perfomance from 8 am to 6 pm.

Key words: blood, flies, frequency, parasitize, trypanosomes