SURVEY FOR HAEMATOPHAGOUS FLIES AND TRYPANOSOMA SPECIES IN CATTLE

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SURVEY FOR HAEMATOPHAGOUS FLIES AND TRYPANOSOMA SPECIES IN CATTLE IN THREE SELECTED DISTRICTS OF GWAGWALADA AREA COUNCIL, FEDERAL,CAPITAL TERRITORY, NIGERIA

 

Abstract:

Biting flies remain important medically, Veterinary and by implication, economically. Beside the menace of biting caused by the members of haematophagous group, they also serve as vectors for several important pathogens. The study took a dry (February) and wet (August)season survey ofhaematophagous flies occurring in Dobi, Paikon-kore and Ibwa districts of Gwagwalada Area Council, Abuja, Nigeria. A total of 15Biconical and 15 Nzi traps were strategically set to trap flies within 48 hours period in each season within the three districts. Blood samples were collected from cattle in the areas where traps were set. A total of 243 cattle were sampled. The sampling (trapping of flies and collection of blood from cattle) were done in February and August. Flies caught in the traps were harvested, identified and counted. From the study, a total of 605 flies were caught during the sampling periods, and Paikon-kore had the highest number of trapped flies in August 186(75.6%) while Ibwa had the highest number of trapped flies for February 79(37.8%).The highest number of flies were caught in August (430) (71.1%) while in February, the number of flies caught was 175 (28.9%). From the study, Stomoxysspecies was the predominant fly in February and August, with highest occurrence of 79.1% in August while Culex species had the lowest occurrence of 0.2% in August. In February, Stomoxysspecies also had the highest occurrence of 64.6% while the lowest occurrence was by Chrysomyaspecies with 0.6%. In both February and August, Biconical trap was observed to be more efficient in trapping flies; catching more flies 71.6% while Nzi trap accounted for 28.4 % of the total of flies caught. There was significant association (p=0.001) between the flies occurrence and the two months of the year, but no statistical association (p= 0.000) between the number of flies caught and the trap used. Although Glossinaspp were not caught, 2.5% of the sampled cattle were infected with Trypanosomavivax. In the analysed blood samples, other haemoparasites were identified which includes; Theileriamutans 16(19.4%), Babesiabovis(14.8%),Theileriavelifera (12.6%), Anaplasmamarginale(11.1%), Babesiabigemina (8.7) and Anaplasmacentrale(4.9%). From the findings it was concluded that Glossina species were absent or very scanty in the study area, Stomoxyscalcitrans was the dominating flies in all Districts. Biconical traps were more efficient than Nzi traps. The presence of T. vivax even though very low can pose a health risk to animals in the study area.

 

SURVEY FOR HAEMATOPHAGOUS FLIES AND TRYPANOSOMA SPECIES IN CATTLE IN THREE SELECTED DISTRICTS OF GWAGWALADA AREA COUNCIL, FEDERAL,CAPITAL TERRITORY, NIGERIA

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