dc.contributor.author | Ssenyonjo, Emmanuel | |
dc.date.accessioned | 2019-11-28T12:23:17Z | |
dc.date.available | 2019-11-28T12:23:17Z | |
dc.date.issued | 2019-07-04 | |
dc.identifier.citation | Ssenyonjo, 2019. Effect of Methyl testosterone hormone on water quality in aquaculture fish farms in Uganda. | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12281/7437 | |
dc.description | Research dissertation submitted to the College Of Natural Sciences as a partial fulfillment for the award of Bachelor’s Degree in Fisheries and Aquaculture of Makerere University | en_US |
dc.description.abstract | Tilapias are sexually reversed by hormonal treatment with 17α-methyltestosterone (MT) before
introduction in culture unit to avoid over-breeding. This manipulation can be perceived as a real chemical
hazard to environment. Therefore, this study was undertaken to evaluate the effect of using MT on water
quality parameters in ponds. Two ponds having four hapas in each were used for the experiment and 15000
fry were stocked in each hapa. The experiment consisted of two treatments having three replications, in
treatment one, fry meal without hormone was fed to the fry and in treatment two fry meal mixed with MT
hormone was used. The fry were fed for four rounds done at 8:00am, 10:00am, 2:00pm and 4:00pm in each
hapa in both ponds.
Water quality parameters such as dissolved oxygen, pH, and turbidity were measured in intervals of three
days at 7:00-8:00am, 12:00-1:00pm and 4:00-5:00pm. The parameters were measured using an oxygen
probe, pH meter and secchi disc. It was found that most of the water quality parameters were within the
suitable range among the two treatments. There was no significant difference in dissolved oxygen and pH
at all time however a significant difference was noticed with turbidity at 4:00-5:00pm (p-value = 0.0047).
The study revealed that the application of MT did not generally influence water quality parameters in
tilapia ponds. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Makerere University | en_US |
dc.subject | Tilapias | en_US |
dc.subject | sexual reversal | en_US |
dc.subject | Hormonal treatment | en_US |
dc.subject | 7α-methyltestosterone (MT) | en_US |
dc.title | Effect of methyl testosterone hormone on water quality in aquaculture fish farms in Uganda | en_US |
dc.type | Thesis | en_US |