Effect of water quality on the parasite assemblages infecting Nile tilapia in selected fish farms in Nakuru County, Kenya
| Autor: | Nzula Kitaka, Renis Auma Ojwala, Elick O. Otachi |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
0301 basic medicine Trichodina Veterinary medicine Fish farming Fisheries Aquaculture Biology 010603 evolutionary biology 01 natural sciences Acanthocephala Fish Diseases 03 medical and health sciences Nile tilapia Nutrient Water Quality Animals Turbidity General Veterinary business.industry Temperature Cichlids General Medicine Hydrogen-Ion Concentration 030108 mycology & parasitology biology.organism_classification Kenya Oxygen Oreochromis Infectious Diseases Oligohymenophorea Insect Science Cestoda Parasitology Trematoda Water quality business |
| Zdroj: | Parasitology Research. 117:3459-3471 |
| ISSN: | 1432-1955 0932-0113 |
| Popis: | Aquaculture has been documented as the fastest developing food industry in Kenya with increased production since the Government initiated the Economic Stimulus Programme (ESP) in 2009. However, the production has not yet reached the maximum level (20,000 metric tons per year) anticipated in the country. This is due to a number of challenges, top of which is poor water quality resulting from the uncontrolled addition of inputs (fish feeds, inorganic fertilizers, and organic fertilizers) into the ponds. These deteriorate water quality, cause increased incidences of parasite infections, and impede fish production. Therefore, this study investigated the effect of water quality on parasite assemblages infecting Oreochromis niloticus (Linnaeus 1758) in selected fish farms within Nakuru County from November 2016 to February 2017. Selected physico-chemical parameters namely: dissolved oxygen, temperature, pH, conductivity, and turbidity were measured in situ using appropriate meters. Water samples from each fish farm were analyzed for nutrient concentrations using standard methods. A total of 300 fish were examined for parasites. Parasites were counted, preserved, and identified using identification keys and parasitological parameters determined. The results indicated that certain water quality parameters, such as dissolved oxygen, were significantly different for all the six fish farms (one-way ANOVA, p |
| Databáze: | OpenAIRE |
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