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dc.contributor.adviserRomallosa, Aries Roda D.
dc.contributor.authorFerasol, Joesan Marri T.
dc.identifier.citationFerasol, J. M. T. (2019). Design, fabrication and performance evaluation of two recirculating aquaculture systems for the production of tilapia (Unpublished Thesis). Central Philippine University, Jaro, Iloilo City.en_US
dc.descriptionAbstract onlyen_US
dc.description.abstractThis system was fabricated and conducted at the Tilapia Hatchery of the Southeast Asian Fisheries Development Center (SEAFDEC) in Tigbauan, Iloilo from December 16, 2018 to February 7, 2019. This system was evaluated using two different bio-filtering media, namely: the commercial bio-filtering medium and the recycled plastic bottle caps. They were compared based on their operating performance and effects on fish growth in terms of temperature and pH level of water, weight gained of fishes, feed conversion ratio, specific growth rate and survival rate. The investment cost of the systems were also computed and their operating costs were analyzed. The basic components of the Recirculating Aquaculture System are: fish tanks, mechanical radial flow filter, bio-filter, sump tank, pump and aerators. Results of the study showed that for both systems, the water temperature ranged from 27°C to 28°C while the pH of the water ranged from 8 to 9. The designed system using two types of bio-filter functioned as purpose. System 2 performed numerically better in terms of feed conversion ratio at 2.08 as compared to that of System 1 at 2.15 and specific growth rate at 8.02% vs 7.94% for System 1. Tilapia in System 1 had better survival rate at 82.56% compared to the 80.51% survival of fishes on System 2. Both systems performed no significant difference (P>0.05) in terms of weight gain of fishes (12.06 g and 12.48 g for Systems 1 and 2, respectively). Since System 2 incurred the lower expenses in terms of investment and operating costs, this type of Recirculation Aquaculture System is recommended.en_US
dc.format.extentviii, 32 leavesen_US
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Philippines*
dc.subject.ddcFilipiniana Theses 630.72 F372en_US
dc.subject.lcshFish cultureen_US
dc.subject.lcshFish culture--Water reuseen_US
dc.subject.lcshFish culture--Water-supplyen_US
dc.subject.lcshFish culture--Equipment and suppliesen_US
dc.titleDesign, fabrication and performance evaluation of two recirculating aquaculture systems for the production of tilapiaen_US
dc.description.bibliographicalreferencesIncludes bibliographical referencesen_US
dc.contributor.chairCabarles, Jaime Jr
dc.contributor.committeememberPatricio, Hope G.
dc.contributor.departmentCollege of Agriculture, Resources and Environmental Sciencesen_US
dc.description.degreeBachelor of Science in Agricultural Engineeringen_US
local.subjectRecirculating aquaculture systemsen_US
local.subject.scientificnameOreochromis niloticusen_US

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Attribution-NonCommercial-NoDerivs 3.0 Philippines
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Philippines