dc.contributor.author | Kamau, Samuel K | |
dc.date.accessioned | 2013-03-18T07:17:45Z | |
dc.date.issued | 2008 | |
dc.identifier.citation | Master of Science in Medical and Veterinary Entomology | en |
dc.identifier.uri | http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/14350 | |
dc.description.abstract | A field study was conducted to assess the protection conferred to zero-grazed animals against tsetse
and trypanosomiasis by surrounding a zero-grazing unit with a polyethylene net. The units were
subjected to various treatments and their effect on Glossina, other biting and non-biting flies and,
trypanosomiasis investigated over a period of six months.
When set around a zero-graze unit at a height of 1.5m, an untreated net reduced prevalence rate of
trypanosomiasis from 38% to 23.9% in the study area. In the high tsetse challenge area, the goats in
the free range homestead and that from confined but without net zero-graze unit resulted in
tyrpanosomisis infection rates of38% and 37% while both insecticide treated and netted zero-graze
units had the infections decrease to 14% and 11% respectively.
The 1% deltamethrin treated net caused significant reduction in tsetse density. This treatment
yielded results that showed very high statistical significance at p<O.05 (p value = 0.001) for tsetse
flies and also Tabanus species atp<O.05 (value=0.021). The 1% deltamethrin insecticide reduced
the disease rate further from 23.9% in the study area Similarly, the disease risk dropped on
subsequent post treatment to nil from 17% after 30 days within 1% deltamethrin treated homestead,
while increasing to 33.3% at 180 post treatment days for the low tsetse challenge level and 50%
within the high challenge for both free-range and confined homestead without net.
This result suggests that, the net could confer protection to the zero-grazed goats effectively at low
and medium tsetse challenge levels. However, treating the net with a lethal concentration of
insecticide would enhance the level of protection the net confers to goats in the high tsetse challenge
area | en |
dc.description.sponsorship | University of Nairobi | en |
dc.language.iso | en | en |
dc.publisher | University of Nairobi | en |
dc.subject | Insecticide | en |
dc.subject | Insecticidal bed nets use | en |
dc.subject | Glossina (glossinadae) | en |
dc.subject | Trypanosomiasis | en |
dc.subject | Dipterans | en |
dc.title | Effects of insecticide treated stable nets on Glossina (Glossinadae), Trypanosomiasis and other Dipterans | en |
dc.type | Thesis | en |
local.publisher | School of Biological Sciences | en |