Browsing by Author "Omonona, A.O."

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    Ectoparasites of farmed clarias gariepinus in Eti-Osa local government area, Lagos state, Nigeria
    (Science Education Development Institute, 2012-12) Elezuo, K. O.; Omonona, A.O.; Adedokun, O. A
    The occurrence and prevalence of ectoparasites on farmed C/arias gariepinus from Eti-Osa local government area, Lagos State was investigated. A total of 110 fish specimens were procured from 5 farms in Eti-Osa local gov ernment area and examined for ectoparasite infestation. 5 out of the 110 fish specimens were infested giving a low prevalence rate of 4.5%. Two parasites namely Sanguinicola (blood fluke: Digenean i rental ode) and Nematode were isolated. There was no significant difference (P>0.05) between ectoparasite infestation in the male and female fish. There was no correlation between size of fish and ectoparasite infestation. Nematode had a higher prevalence, abundance and means intensity of 2.73%. 0.03 and 0.6 respectively than Sanguinicola with the values 1.82%, 0.02 and 0.4 for prevalence, abundance and means intensity respectively. All the ectoparasites were recovered from the gills, giving a prevalence rate of 4.5%. The low occurrence and prevalence of ectoparasites on farmed C. gariepinus from Eti-Osa local government area could be attributed to the high level of management observed in these farms. The high standard of pond and farm management attained by fish farmers in this local government area should be sustained. Also, the introduction of catfish fingerlings from the wild into the fish farms should be avoided
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    Parasitological studies on agama lizard (agama agama) in Ibadan
    (American-Euracian Network for Scientific Information, 2011) Omonona, A.O.; Adedokun, O. A.; Adekoya-Gafaar, S.A.
    The parasitological studies of agama lizard (Agama agama) in Ibadan was carried out by selectively picking sixty growing agama lizards of lengths ranging from 22.9cm to 37.5cm (snout-vent length), from five local governments in Ibadan, Oyo state, Nigeria. The lizards were dissected for the collection of the worms which were found in the stomach, intestine and rectum. The worms were identified with a microscope. Parasitological variables were presented on tables and summarized as percentages. Strongyluris brevicaudata and Thelandros annulatus were the prevalent parasites. Across the five local governments, Strongyluris brevicaudata had the highest infection rate in Ibadan South East (87.50%) while Thelandros annulatus was highest in Ibadan North (75.86%). The prevalence of infection of Strongyluris brevicaudata was higher than Thelandros annulatus. The entire male and female specimens examined were found to be parasitized. Females had higher intensity of infection in Ibadan North (51.72%), South east (54.68%) and North west (53.57%) while the male had the highest infection rate in only two local governments, Ibadan North East (48.44%) and Ibadan South West (49.15%).