Browsing by Author "Nwadike, C.C"

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    Distribution and seasonal abundance of Anopheline mosquitoes and their association with rainfall around irrigation and non irrigation areas in Nigeria
    (UNED: Research journal in Costa Rica, 2018-12) Amaechi,E.C; Ukpai,O.M; Ohaeri,C.C; Ejike, B.U; Irole-Eze,O.P; Egwu, O; Nwadike, C.C
    The abundance of Anopheline mosquito species is the most common entomological measurement to determine the relationship between vectors and malaria incidence. We conducted an entomolog ical survey to determine mosquito species diversity and abundance in relation to rainfall in Omi reservoir irrigation area, Nigeria. We col lected adult mosquitoes from 10 randomly selected residential houses using Pyrethrum spray sheet and Human Landing Catch methods. We grouped the samples into irrigated (intervention) and non-irrigated (control) communities. During the 12-month sampling period, we col lected a total of 4 285 mosquitoes belonging to 10 species in one fam ily. The three most common species during this study were Anopheles gambiae, Anopheles funestus and Culex quinquefasciatus. Irrigated community has higher numbers of mosquitoes (69,4%) compared to those collected in non-irrigated community (32,0%). Comparing the two collection methods used, Pyrethrum spray sheet has a greater number 2 225(75,4%) of mosquitoes than those with Human Landing Catch method 724(24,6%). During dry season, we collected fewer mos quitoes. The lowest number was collected in February (114) and the highest occurring during the wet season in July (445).
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    Parasitological examination of slender Amaranth Vegetable (Amaranthus viridis) and Bush Okra (Corchorus olitorius) from farms and markets in communities around Edu LGA, Kwara State
    (University of PortHarcourt, 2024-07) Amaechi,E.C; Nwachukwu,P.C; Ezekiel,O.O; Nwadike, C.C; Adewumi, A.F; Oladiti,A.B; Oyinloye, F.O.P
    dis) and bush-okra (Corchorus olitorius) from farms and markets in the communities around Edu Local Government Area of Kwara State of Nigeria between January and July 2023 for evaluation of parasites that infect humans using the sedimentation method. Parasites isolated from vegetable samples from the farm showed that Ascaris lumbricoides (17.6%) was the most encountered followed by Entamoeba histolytica (11.2%) and the least was Enterobius vermicularis (3.2%). In the market samples, Ascaris (11.2%) was the most prevalent parasites encountered while Trichuris trichiura, Strongyloides stercoralis and E. vermicularis (1.6%) were the least prevalent. One hundred and fourteen (45.6%) samples were contaminated with various parasites. Of the total contaminated vegetable, 74/125 (59.2%) were found in the farm vegetables while 40/125 (32.0%) were encountered in the market vegetables. Corchorus olitorius were found to be more contaminated in both the farms 39/110 (35.5%) and market 23/110 (20.9%). From the study, it was seen that the rate of contamination was highest in the month of July, while the month of January had the least rate of contamination for both farm and market vegetable samples. The difference in the contamination rate in both farm and market samples were seen to be significant (P < 0.05). This study recommends proper washing of vegetables prior to consumption and proper sewage treatment before usage as fertilizer.
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    Prevalence of helminth parasites in some commercially important fish species of River anambra
    (Zoological Society of Nigeria, 2023) Nwadike, C.C; Ilozumba,P.C.O; Amaechi,E.C; Okeke,O.A; Nnatuanya,I.O; Okeke,J.J; Afoemezie, P.I; Udeh,N.P
    The demand for fish as a source of protein is on the increase. However, sustainable productivity by fish farmers is constrained by parasitic infections. Thus, an investigation was conducted on the prevalence of helminth parasites in some commercially important fish species of River Anambra, Nigeria. A total of 521 fishes belonging to 6 families (Claroteidae, Synodontidae, Mormyridae, Osteoglossidae, Bagridae, and Clariidae) and 20 species caught with hooks, nets, and local traps were examined using standard parasitological techniques. The overall prevalence was 23.80%. Fish samples belonging to 6 families had the following prevalence of infection: Bagridae (0.00%), Clariidae (2.11 %), Claroteidae (1.53%), Mormyridae (0.0%), Osteoglossidae (14.97%) and Synodontidae (5.18%). Helminth parasites recovered were: Weyonia species (4.65%), Weyonia youdeowii (15.97%), Weyonia synodontis (3.33%), Sandonella sandoni (37.41%), Polyonchobothrium clarias (17.98 %), Plerocercoid larva (13.33%) and unidentified cestode (35.47%) (Cestoda); Emoleptalea species (4.65%) (Trematoda); Procamallanus laeviconchus (2.72%), Dujardinascaris species (1.36%), Spirocamallanus species (3.99%) (Nematoda); Neoechinorhynchus species (24.61%), Tenuisentis niloticus (34.62%) and unidentified acanthocephalan (6.25%) (Acanthocephala). Weyonia species, Weyonia youdeoweii, and W. synodontis were recovered from synodontids only. Acanthocephalan, cestodes, nematodes and trematodes were found in decreasing order of abundance. The presence of trematode Emoleptalea sp in Clarias gariepinus is a new host record of the parasite for the geographical area.