Abstract:

In Buikwe Country, Mukono District, between April 2001 and March 2002, the
effectiveness of the following methods of controlling nagana in cattle: Diminazene
aceturate therapy; deltamethrine impregnated pyramidal traps; Diminazene aceturate
chemotherapy plus application of deltamethrin on cattle; isometamidium
chemoprophylaxis plus deltamethrine impregnated traps; deminazene aceturate
chemotherapy plus deltamethrine impregnated traps and isometamidium chloride
chemoprophylasxis plus deltamethrine application on cattle were evaluated. The
evaluation was done by assessing the effect of the control strategy on trypanosome
infection rates in cattle and in tsetse flies; the haematocrit of cattle and the apparent
density of tsetse flies in the study area.
The combination of prophylactic treatment with isometamiduim chloride plus deltamethrine application on cattle (live bait) performed the best by way of reducing the
tsetse apparent density (P<0.05), improving haematocrit (P<0.05) and reducing the
trypanosome infection rates in cattle and tsetse flies.
Sole use of traps and Diminazene aceturate treatments separately performed worst. Therefore, it was recommended that for control of bovine trypanosomosis,isometamedium chloride chemoprophylaxis plus deltamethrine application on cattle
should be advocated for; preferably after the cost effectiveness of this strategy has been
studies later.
Chemotherapy with Diminazene aceturate should be reserved for clearing of cattle herds
of trypanosomes and not for prophyloxis.
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