Thesis Abstract and Dissertation Abstracts
Feeding and Resting Behaviour of Malaria Vectors in the Kassena-Nankana District of Ghana
Abstract Category: Science
Course / Degree: Bsc. Zoology
Institution / University: University of Ghana, Legon, Ghana
Published in: 2003
Malaria is generally endemic in the tropics, with extensions into the subtropics. The peculiarity of the situation is attributable to the vector assemblage, which constitutes a very efficient vectorial system. Blood meals of Anopheles vectors of malaria, which rest indoors and outdoors during the day in three micro-ecological areas in the Kassena-Nankana district of the upper east region of Ghana, were analyzed. Standard WHO 1975 methods were used to collect the resting mosquitoes during peak rainfall months (August-September 2001). Standard indoor Pyrethrum Spray Catches (PSC) was used for the indoor collections and Outdoors Resting Collections (ORC) were done at natural mosquito resting places such as tree holes, dark cool places, goat pen and hencoops. Both PSC and ORC yielded a total of 10061 mosquitoes. Freshly fed ones were analyzed by ELISA to identify the source of blood meal. The physiological stages of the abdomen of the mosquitoes were recorded and interpreted to determine the resting habits
An. gambiae and An. funestus constituted 59.6% and 40.4% respectively and between 5.1% and 34.1% of the total collections were either half gravid or fully gravid. Whereas 4.5% had not fed on a meal 56.4% had fed on blood. Of the 440 blood fed individuals from indoor collections, 49.1% and 26.1% had fed on human and bovine respectively, while 31.1% had fed on mixed blood sources, which were mainly human and bovine. Of the few outdoor collections analyzed, nearly all had fed on bovine. The data suggest that the vectors, An. gambiae and An. funestus were mainly endophilic and endophagic. They fed mainly on humans but would feed on other host, which are available. The high proportion of mixed feeding suggests a high failure to obtain full blood meals from a single host clearly depicting the impact of ITN promotion in the region.
Thesis Keywords/Search Tags:
endophagic, endophilic, vectors, malaria, blood meal, feeding, resting
This Thesis Abstract may be cited as follows:
Dery D.B 13, Wilson D1, Appawu M.A 2, Owusu-Agyei 3
'FEEDING AND RESTING BEHAVIOUR OF MALARIA VECTORS IN THE KASSENA-NANKANA DISTRICT OF GHANA'
Submission Details: Thesis Abstract submitted by Dery Bon-Ereme Dominic from Ghana on 18-Feb-2005 17:02.
Abstract has been viewed 3331 times (since 7 Mar 2010).
Dery Bon-Ereme Dominic Contact Details: Email: dominic.dery@kintampo-hrc.org
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